mobile_user.js/user.js

//
/**********************************************************************************
 * user.js | Fenix, Iceraven, Fennec F-Droid or Icecatmobile                                                     *
 *                                                                                *
 * https://git.nixnet.xyz/Narsil/mobile_user.js                                *
 *********************************************************************************/
//
// Author    : Narsil     https://git.nixnet.xyz/Narsil/mobile_user.js
//
//
// Based on  : * [Quindecim](https://git.nixnet.xyz/quindecim/mobile_user.js)
               * [Arkenfox](https://github.com/arkenfox/user.js)
//
// License   : https://git.nixnet.xyz/Narsil/mobile_user.js/src/branch/master/LICENSE.txt
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : Startup
// >>>>>>>>>>>>>>>>>>>>>
// Pref : Enable start in Private Browsing mode
// user_pref("browser.privatebrowsing.autostart", true);
// -------------------------------------
// Pref : Disable default browser check
user_pref("browser.shell.checkDefaultBrowser", false); // [DESKTOP]
// -------------------------------------
// Pref : Set START page 
// (0=blank, 1=home, 2=last visited page, 3=resume previous session)
// [NOTE] Session Restore is not used in PB mode and is cleared with history
user_pref("browser.startup.page", 0); // [DESKTOP]
// -------------------------------------
// Pref : Set NEWTAB page
// true=Activity Stream, false=blank page
user_pref("browser.newtabpage.enabled", false); // [DESKTOP]
user_pref("browser.newtab.url", "about:blank"); // [DESKTOP]
// -------------------------------------
// Pref : Disable Extension Recommendations (CFR: "Contextual Feature Recommender")
// https://support.mozilla.org/en-US/kb/extension-recommendations
user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable Activity Stream Top Stories, Pocket-based and/or sponsored content
user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.feeds.section.topstories.options", ""); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.section.highlights.includePocket", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.showSponsored", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.feeds.discoverystreamfeed", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.pocketCta", ""); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.sectionOrder", ""); // [DESKTOP]
// -------------------------------------
// Pref : Set Homepage and disable caching content
user_pref("browser.startup.homepage", "about:blank"); // [DESKTOP]
user_pref("browser.startup.homepage.abouthome_cache.enabled", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable Activity Stream Snippets
// Runs code received from a server (aka Remote Code Execution) and sends information back to a metrics server
// https://abouthome-snippets-service.readthedocs.io/
user_pref("browser.newtabpage.activity-stream.asrouter.providers.snippets", ""); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.feeds.snippets", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable Activity Stream telemetry
user_pref("browser.newtabpage.activity-stream.feeds.telemetry", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.telemetry", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.telemetry.ut.events", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.telemetry.structuredIngestion", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.telemetry.structuredIngestion.endpoint", ""); // [DESKTOP]
// -------------------------------------
// Pref : Disable Activity Stream feeds
user_pref("browser.newtabpage.activity-stream.feeds.aboutpreferences", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.feeds.favicon", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.feeds.messagecenterfeed", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.feeds.migration", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.feeds.newtabinit", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.feeds.places", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.feeds.prefs", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.feeds.section.highlights", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.feeds.sections", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.feeds.systemtick", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.feeds.topsites", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.feeds.asrouterfeed", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.feeds.recommendationproviderswitcher", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable Activity Stream (others)
user_pref("browser.newtabpage.activity-stream.messageCenterExperimentEnabled", false);
user_pref("browser.newtabpage.activity-stream.showSearch", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.discoverystream.config", ""); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.discoverystream.endpoints", ""); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.discoverystream.rec.impressions", ""); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.discoverystream.spoc.impressions", ""); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.discoverystream.endpointSpocsClear", "");
user_pref("browser.newtabpage.activity-stream.section.highlights.includeBookmarks", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.section.highlights.includeDownloads", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.section.highlights.includeVisited", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.discoverystream.personalization.modelKeys", ""); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.improvesearch.handoffToAwesomebar", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.discoverystream.isCollectionDismissible", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.discoverystream.region-basic-layout", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.discoverystream.region-layout-config", ""); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.discoverystream.region-spocs-config", ""); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.discoverystream.region-stories-config", ""); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.discoverystream.recs.personalized", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.discoverystream.spocs.personalized", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.feeds.system.topsites", false); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.feeds.system.topstories", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable new tab tile ads & preload
// https://wiki.mozilla.org/Tiles/Technical_Documentation#Ping
// https://gecko.readthedocs.org/en/latest/browser/browser/DirectoryLinksProvider.html#browser-newtabpage-directory-source
// https://gecko.readthedocs.org/en/latest/browser/browser/DirectoryLinksProvider.html#browser-newtabpage-directory-ping
user_pref("browser.newtab.preload", false); // [DESKTOP]
user_pref("browser.newtabpage.directory.ping", ""); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.asrouter.messageProviders", ""); // [DESKTOP]
// -------------------------------------
// Pref : Don't reveal build ID
// Value taken from Tor Browser
// https://bugzilla.mozilla.org/show_bug.cgi?id=583181
user_pref("browser.startup.homepage_override.mstone", "ignore");
// -------------------------------------
// Pref : Disable separate about:welcome page
// https://bugzilla.mozilla.org/show_bug.cgi?id=1617783
user_pref("browser.aboutwelcome.enabled", false); // [DESKTOP]
user_pref("trailhead.firstrun.branches", ""); // [DESKTOP]
user_pref("browser.aboutwelcome.overrideContent", ""); // [DESKTOP]
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : Quiet Fox
// >>>>>>>>>>>>>>>>>>>>>
// Pref : Disable app from auto-update
// true=application updates are installed without user approval.
// false=application updates are downloaded but the user can choose when to install the update.
user_pref("app.update.auto", false); // [DESKTOP]
user_pref("app.update.autodownload", "never");
user_pref("app.update.channel", "");
user_pref("app.update.url.details", ""); // [DESKTOP]
user_pref("app.update.url.manual", ""); // [DESKTOP]
user_pref("app.update.url.android", "");
user_pref("app.update.staging.enabled", false); // [DESKTOP]
user_pref("app.update.log.file", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable sync
user_pref("sync.enabled", false); // [DEPRECATED] // [DESKTOP]
user_pref("services.sync.enabled", false);
// -------------------------------------
// Pref : Disable other sync settings (by prevention)
user_pref("services.sync.maxResyncs", 0); // [DESKTOP]
user_pref("services.sync.telemetry.maxPayloadCount", 0); // [DESKTOP]
user_pref("services.sync.addons.ignoreUserEnabledChanges", true); // [DESKTOP]
user_pref("services.sync.engine.addons", false); // [DESKTOP]
user_pref("services.sync.engine.addresses", false); // [DESKTOP]
user_pref("services.sync.engine.bookmarks", false); // [DESKTOP]
user_pref("services.sync.engine.bookmarks.buffer", false); // [DESKTOP]
user_pref("services.sync.engine.creditcards", false); // [DESKTOP]
user_pref("services.sync.engine.creditcards.available", false); // [DESKTOP]
user_pref("services.sync.engine.history", false); // [DESKTOP]
user_pref("services.sync.engine.passwords", false); // [DESKTOP]
user_pref("services.sync.engine.prefs", false); // [DESKTOP]
user_pref("services.sync.engine.tabs", false); // [DESKTOP]
user_pref("services.sync.log.appender.file.logOnError", false); // [DESKTOP]
user_pref("services.sync.log.appender.file.logOnSuccess", false); // [DESKTOP]
user_pref("services.sync.log.cryptoDebug", false); // [DESKTOP]
user_pref("services.sync.sendVersionInfo", false); // [DESKTOP]
user_pref("services.sync.syncedTabs.showRemoteIcons", true); // [DESKTOP]
user_pref("services.sync.prefs.sync.accessibility.blockautorefresh", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.accessibility.browsewithcaret", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.accessibility.typeaheadfind", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.accessibility.typeaheadfind.linksonly", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.addons.ignoreUserEnabledChanges", true); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.ctrlTab.recentlyUsedOrder", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.download.useDownloadDir", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.formfill.enable", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.link.open_newwindow", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.newtabpage.enabled", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.newtabpage.pinned", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.search.update", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.startup.homepage", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.startup.page", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.tabs.loadInBackground", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.tabs.warnOnClose", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.tabs.warnOnOpen", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.urlbar.autocomplete.enabled", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.urlbar.matchBuckets", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.urlbar.maxRichResults", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.urlbar.suggest.bookmark", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.urlbar.suggest.history", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.urlbar.suggest.history.onlyTyped", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.urlbar.suggest.openpage", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.urlbar.suggest.searches", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.contentblocking.category", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.contentblocking.introCount", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.crashReports.unsubmittedCheck.autoSubmit2", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.feeds.section.highlights", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.feeds.section.topstories", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.feeds.snippets", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.feeds.topsites", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.section.highlights.includeBookmarks", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.section.highlights.includeDownloads", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.section.highlights.includePocket", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.section.highlights.includeVisited", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.section.highlights.rows", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.section.topstories.rows", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.showSearch", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.topSitesRows", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.taskbar.previews.enable", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.dom.disable_open_during_load", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.dom.disable_window_flip", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.dom.disable_window_move_resize", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.dom.event.contextmenu.enabled", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.extensions.personas.current", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.extensions.update.enabled", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.intl.accept_languages", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.layout.spellcheckDefault", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.lightweightThemes.selectedThemeID", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.lightweightThemes.usedThemes", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.network.cookie.cookieBehavior", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.network.cookie.lifetimePolicy", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.network.cookie.thirdparty.sessionOnly", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.permissions.default.image", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.pref.advanced.images.disable_button.view_image", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.pref.advanced.javascript.disable_button.advanced", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.pref.downloads.disable_button.edit_actions", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.pref.privacy.disable_button.cookie_exceptions", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.clearOnShutdown.cache", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.clearOnShutdown.cookies", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.clearOnShutdown.downloads", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.clearOnShutdown.formdata", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.clearOnShutdown.history", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.clearOnShutdown.offlineApps", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.clearOnShutdown.sessions", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.clearOnShutdown.siteSettings", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.donottrackheader.enabled", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.reduceTimerPrecision", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.resistFingerprinting", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.resistFingerprinting.reduceTimerPrecision.jitter", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.resistFingerprinting.reduceTimerPrecision.microseconds", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.sanitize.sanitizeOnShutdown", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.trackingprotection.enabled", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.trackingprotection.pbmode.enabled", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.trackingprotection.cryptomining.enabled", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.trackingprotection.fingerprinting.enabled", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.media.autoplay.default", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.security.OCSP.enabled", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.security.OCSP.require", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.security.default_personal_cert", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.security.tls.version.max", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.security.tls.version.min", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.services.sync.syncedTabs.showRemoteIcons", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.spellchecker.dictionary", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.xpinstall.whitelist.required", false); // [DESKTOP]
user_pref("services.sync.declinedEngines", ""); // [DESKTOP]
user_pref("services.sync.jpake.serverURL", ""); // [DEPRECATED] // [DESKTOP]
user_pref("services.sync.migrated", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.safebrowsing.downloads.enabled", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.safebrowsing.malware.enabled", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.safebrowsing.passwords.enabled", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.safebrowsing.phishing.enabled", false); // [DESKTOP]
user_pref("services.sync.engine.addresses.available", false); // [DESKTOP]
user_pref("services.sync.addons.trustedSourceHostnames", ""); // [DESKTOP]
user_pref("services.sync.engine.tabs.filteredUrls", ""); // [DESKTOP]
user_pref("services.sync.log.appender.console", ""); // [DESKTOP]
user_pref("services.sync.log.appender.dump", ""); // [DESKTOP]
user_pref("services.sync.log.appender.file.level", ""); // [DESKTOP]
user_pref("services.sync.log.logger", ""); // [DESKTOP]
user_pref("services.sync.log.logger.engine", ""); // [DESKTOP]
user_pref("services.sync.prefs.sync.media.eme.enabled", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.fuzzyfox.clockgrainus", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.privacy.fuzzyfox.enabled", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.signon.rememberSignons", false); // [DESKTOP]
user_pref("services.sync.serverURL", ""); // [DESKTOP]
user_pref("services.sync.lastversion", ""); // [DESKTOP]
user_pref("sync.serverURL", ""); // [DEPRECATED] // [DESKTOP]
user_pref("sync.jpake.serverURL", ""); // [DEPRECATED] // [DESKTOP]
user_pref("services.sync.prefs.sync.browser.contentblocking.features.strict", false); // [DESKTOP]
user_pref("services.sync.prefs.dangerously_allow_arbitrary", false); // [DESKTOP]
user_pref("services.sync.prefs.sync.app.shield.optoutstudies.enabled", false);
user_pref("services.sync.prefs.sync.browser.discovery.enabled", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.showSponsored", false);
user_pref("services.sync.prefs.sync.browser.search.widget.inNavBar", false);
user_pref("services.sync.prefs.sync.extensions.activeThemeID", false);
// -------------------------------------
// Pref : Never check updates for search engines
// https://support.mozilla.org/en-US/kb/how-stop-firefox-making-automatic-connections#w_auto-update-checking
user_pref("browser.search.update", false);
user_pref("browser.search.update.log", false);
// -------------------------------------
// Pref : Tell the search service that we don't really expose the "current engine"
user_pref("browser.search.noCurrentEngine", true); // [DEFAULT: true]
// -------------------------------------
// Pref : Disable sending Flash Player crash reports
user_pref("dom.ipc.plugins.flash.subprocess.crashreporter.enabled", false);
// -------------------------------------
// Pref : Disable sending the URL of the website where a plugin crashed
user_pref("dom.ipc.plugins.reportCrashURL", false);
// -------------------------------------
// Pref : Disable Telemetry
// https://wiki.mozilla.org/Platform/Features/Telemetry
// https://wiki.mozilla.org/Privacy/Reviews/Telemetry
// https://wiki.mozilla.org/Telemetry
// https://www.mozilla.org/en-US/legal/privacy/firefox.html#telemetry
// https://support.mozilla.org/t5/Firefox-crashes/Mozilla-Crash-Reporter/ta-p/1715
// https://wiki.mozilla.org/Security/Reviews/Firefox6/ReviewNotes/telemetry
// https://firefox-source-docs.mozilla.org/toolkit/components/telemetry/telemetry/internals/preferences.html#id1
user_pref("toolkit.telemetry.enabled", false);
user_pref("toolkit.telemetry.debugSlowSql", false);
user_pref("toolkit.telemetry.reportingpolicy.firstRun", false);
user_pref("toolkit.telemetry.server", "data:,");
user_pref("toolkit.telemetry.server_owner", "");
user_pref("toolkit.telemetry.unified", false);
user_pref("toolkit.telemetry.unifiedIsOptIn", false); // [DESKTOP]
user_pref("toolkit.telemetry.archive.enabled", false); // [DESKTOP]
user_pref("toolkit.telemetry.cachedClientID", ""); // [DESKTOP]
user_pref("toolkit.telemetry.newProfilePing.enabled", false); // [DESKTOP]
user_pref("toolkit.telemetry.shutdownPingSender.enabled", false); // [DESKTOP]
user_pref("toolkit.telemetry.updatePing.enabled", false); // [DESKTOP]
user_pref("toolkit.telemetry.bhrPing.enabled", false); // [DESKTOP]
user_pref("toolkit.telemetry.firstShutdownPing.enabled", false); // [DESKTOP]
user_pref("toolkit.telemetry.previousBuildID", ""); // [DESKTOP]
user_pref("toolkit.telemetry.prompted", 2); // [DESKTOP]
user_pref("toolkit.telemetry.rejected", true); // [DESKTOP]
user_pref("security.identitypopup.recordEventTelemetry", false);
user_pref("security.certerrors.recordEventTelemetry", false); // [DESKTOP]
user_pref("privacy.trackingprotection.origin_telemetry.enabled", false);
user_pref("telemetry.origin_telemetry_test_mode.enabled", false);
user_pref("toolkit.telemetry.ecosystemtelemetry.enabled", false); // [DESKTOP]
user_pref("security.protectionspopup.recordEventTelemetry", false); // [DESKTOP]
user_pref("toolkit.telemetry.geckoview.streaming", false);
user_pref("toolkit.telemetry.isGeckoViewMode", false);
user_pref("toolkit.telemetry.testing.overrideProductsCheck", false);
user_pref("security.app_menu.recordEventTelemetry", false); // [DESKTOP]
user_pref("browser.urlbar.eventTelemetry.enabled", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable Telemetry Coverage
// https://blog.mozilla.org/data/2018/08/20/effectively-measuring-search-in-firefox/
user_pref("toolkit.coverage.enabled", false); // [DESKTOP]
user_pref("toolkit.telemetry.coverage.opt-out", true); // [HIDDEN PREF] // [DESKTOP]
user_pref("toolkit.coverage.opt-out", true); // [HIDDEN PREF] // [DESKTOP]
user_pref("toolkit.coverage.endpoint.base", ""); // [DESKTOP]
// -------------------------------------
// Pref : Disable collection/sending of the health report (healthreport.sqlite*)
user_pref("datareporting.healthreport.uploadEnabled", false); // [DESKTOP]
user_pref("datareporting.healthreport.service.enabled", false); // [DESKTOP]
user_pref("datareporting.healthreport.infoURL", ""); // [DESKTOP]
user_pref("datareporting.policy.dataSubmissionEnabled", false);
user_pref("datareporting.policy.currentPolicyVersion", 0);
user_pref("datareporting.policy.currentPolicyAcceptedVersion", 0);
user_pref("datareporting.policy.dataSubmissionPolicyAcceptedVersion", 0);
user_pref("datareporting.policy.dataSubmissionPolicyBypassNotification", false);
user_pref("datareporting.policy.dataSubmissionPolicyNotifiedTime", "");
user_pref("datareporting.policy.firstRunURL", "");
user_pref("datareporting.policy.minimumPolicyVersion", 0);
user_pref("datareporting.policy.minimumPolicyVersion.channel-beta", 0);
// -------------------------------------
// Pref : Disable personalized Extension Recommendations in about:addons and AMO
// [NOTE] This pref has no effect when Health Reports are disabled
// https://support.mozilla.org/kb/personalized-extension-recommendations
user_pref("browser.discovery.enabled", false); // [DEFAULT: false]
// -------------------------------------
// Pref : Disable Crash Reports
user_pref("breakpad.reportURL", "");
user_pref("browser.tabs.crashReporting.email", ""); // [DESKTOP]
user_pref("browser.tabs.crashReporting.emailMe", false); // [DESKTOP]
user_pref("browser.tabs.crashReporting.includeURL", false); // [DESKTOP]
user_pref("browser.tabs.crashReporting.requestEmail", false); // [DESKTOP]
user_pref("browser.tabs.crashReporting.sendReport", false); // [DESKTOP]
user_pref("browser.crashReports.unsubmittedCheck.enabled", false); // [DESKTOP]
user_pref("toolkit.crashreporter.infoURL", ""); // [DESKTOP]
// -------------------------------------
// Pref : Disable Crash Report for Reporting API
// https://bugzilla.mozilla.org/show_bug.cgi?id=1607364
user_pref("dom.reporting.crash.enabled", false);
// -------------------------------------
// Pref : Disable automatic captive portal detection
// https://www.eff.org/deeplinks/2017/08/how-captive-portals-interfere-wireless-security-and-privacy
// https://wiki.mozilla.org/Necko/CaptivePortal
user_pref("captivedetect.canonicalURL", "");
user_pref("network.captive-portal-service.enabled", false);
user_pref("network.captive-portal-service.backoffFactor", "");
// user_pref("network.captive-portal-service.maxInterval", 0);
// user_pref("network.captive-portal-service.minInterval", 0);
// -------------------------------------
// Pref : Disable Network Connectivity checks
// https://bugzilla.mozilla.org/1460537
user_pref("network.connectivity-service.enabled", false); // [DEFAULT: true]
user_pref("network.connectivity-service.IPv4.url", "");
user_pref("network.connectivity-service.IPv6.url", "");
user_pref("network.connectivity-service.DNSv4.domain", "");
user_pref("network.connectivity-service.DNSv6.domain", "");
// -------------------------------------
// Pref : Disable auto updating of lightweight themes (LWT)
// Not to be confused with themes, which use the Theme API
// Mozilla plan to convert existing LWTs and remove LWT support in the future
// https://blog.mozilla.org/addons/2018/09/20/future-themes-here/
user_pref("lightweightThemes.persisted.headerURL", false);
// user_pref("lightweightThemes.selectedThemeID", ""); // [BUG - FF doesen't save theme selected by user]
user_pref("lightweightThemes.getMoreURL", ""); // [DESKTOP]
user_pref("lightweightThemes.persisted.footerURL", false); // [DESKTOP]
user_pref("lightweightThemes.recommendedThemes", ""); // [DESKTOP]
// -------------------------------------
// Pref : Disable Studies and SHIELD
user_pref("app.shield.optoutstudies.enabled", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable backlogged Crash Reports
user_pref("browser.crashReports.unsubmittedCheck.autoSubmit2", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable about:addons Recommendations pane (uses Google Analytics)
user_pref("extensions.getAddons.showPane", false); // [HIDDEN PREF] // [DESKTOP]
// -------------------------------------
// Pref : Disable recommendations in about:addons Extensions and Themes panes 
// https://www.ghacks.net/2019/05/15/enable-new-firefox-recommended-extensions-suggestions-in-firefox-68-nightly/
user_pref("extensions.htmlaboutaddons.inline-options.enabled", false);
user_pref("extensions.htmlaboutaddons.recommendations.enabled", false);
user_pref("extensions.getAddons.discovery.api_url", ""); // [DESKTOP]
user_pref("extensions.recommendations.privacyPolicyUrl", "");
user_pref("extensions.recommendations.themeRecommendationUrl", "");
// -------------------------------------
// Pref : Disable extension's report option in about:addons
user_pref("extensions.abuseReport.enabled", false);
user_pref("extensions.abuseReport.url", "");
user_pref("extensions.abuseReport.amoDetailsURL", "");
user_pref("extensions.abuseReport.amWebAPI.enabled", false);
// -------------------------------------
// Pref : Disable Firefox Hello metrics collection
// https://groups.google.com/d/topic/mozilla.dev.platform/nyVkCx-_sFw/discussion
user_pref("loop.logDomains", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable contentblocking reports
user_pref("browser.contentblocking.reportBreakage.url", ""); // [DESKTOP]
user_pref("browser.contentblocking.report.cookie.url", ""); // [DESKTOP]
user_pref("browser.contentblocking.report.cryptominer.url", ""); // [DESKTOP]
user_pref("browser.contentblocking.report.fingerprinter.url", ""); // [DESKTOP]
user_pref("browser.contentblocking.report.lockwise.enabled", false); // [DESKTOP]
user_pref("browser.contentblocking.report.lockwise.how_it_works.url", ""); // [DESKTOP]
user_pref("browser.contentblocking.report.manage_devices.url", ""); // [DESKTOP]
user_pref("browser.contentblocking.report.monitor.enabled", false); // [DESKTOP]
user_pref("browser.contentblocking.report.monitor.how_it_works.url", ""); // [DESKTOP]
user_pref("browser.contentblocking.report.monitor.sign_in_url", ""); // [DESKTOP]
user_pref("browser.contentblocking.report.monitor.url", ""); // [DESKTOP]
user_pref("browser.contentblocking.report.proxy.enabled", false); // [DESKTOP]
user_pref("browser.contentblocking.report.proxy_extension.url", ""); // [DESKTOP]
user_pref("browser.contentblocking.report.social.url", ""); // [DESKTOP]
user_pref("browser.contentblocking.report.tracker.url", ""); // [DESKTOP]
user_pref("browser.contentblocking.report.endpoint_url", ""); // [DESKTOP]
user_pref("browser.contentblocking.report.monitor.home_page_url", ""); // [DESKTOP]
user_pref("browser.contentblocking.report.monitor.preferences_url", ""); // [DESKTOP]
// -------------------------------------
// Pref : Disable lockwise app callout to the ETP card
// https://bugzilla.mozilla.org/show_bug.cgi?id=1612091
// https://bugzilla.mozilla.org/show_bug.cgi?id=1612088
user_pref("browser.contentblocking.report.show_mobile_app", false);
user_pref("browser.contentblocking.report.lockwise.mobile-android.url", "");
user_pref("browser.contentblocking.report.lockwise.mobile-ios.url", "");
user_pref("browser.contentblocking.report.mobile-android.url", "");
user_pref("browser.contentblocking.report.mobile-ios.url", "");
// -------------------------------------
// Pref : Disable send content blocking log to about:protections
// https://bugzilla.mozilla.org/show_bug.cgi?id=1549832
user_pref("browser.contentblocking.database.enabled", false);
// -------------------------------------
// Pref : Disable celebrating milestone toast when certain numbers of trackers are blocked
user_pref("browser.contentblocking.cfr-milestone.enabled", false); // [DESKTOP]
// -------------------------------------
// Pref : Onboarding tour disable because of included telemetry
// [NOTE] This setting is just in case it comeback
user_pref("browser.onboarding.notification.finished", true); // [DESKTOP] // [DEPRECATED]
user_pref("browser.onboarding.tour.onboarding-tour-customize.completed", true); // [DESKTOP] // [DEPRECATED]
user_pref("browser.onboarding.tour.onboarding-tour-performance.completed", true); // [DESKTOP] // [DEPRECATED]
user_pref("devtools.onboarding.telemetry.logged", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable check default browser on first run
user_pref("browser.shell.didSkipDefaultBrowserCheckOnFirstRun", true); // [DESKTOP]
// -------------------------------------
// Pref : Disable GCLI (Graphical Command Line Interface)
// https://wiki.mozilla.org/DevTools/Features/GCLI
user_pref("devtools.gcli.imgurUploadURL", ""); // [DESKTOP]
user_pref("devtools.gcli.jquerySrc", ""); // [DESKTOP]
user_pref("devtools.gcli.underscoreSrc", ""); // [DESKTOP]
user_pref("devtools.gcli.lodashSrc", ""); // [DESKTOP]
// -------------------------------------
// Pref : Disable Firefox screenshot extension
// https://support.mozilla.org/en-US/kb/firefox-screenshots
user_pref("extensions.screenshots.disabled", true); // [DESKTOP]
// -------------------------------------
// Pref : Disable spellchecker functionality by default
// 0=none, 1-multi-line, 2=multi-line & single-line
// https://support.mozilla.org/en-US/kb/how-do-i-use-firefox-spell-checker
user_pref("layout.spellcheckDefault", 0); // [DESKTOP]
// -------------------------------------
// Pref : Enable Firefox internal pages and disable the related warnings
user_pref("general.aboutConfig.enable", true);
user_pref("general.warnOnAboutConfig", false); // [XUL/XHTML]
user_pref("browser.aboutConfig.showWarning", false);  // [DESKTOP] // [HTML]
// -------------------------------------
// Pref : Disable recent Highlights in the Library
user_pref("browser.library.activity-stream.enabled", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable warnings about close/open multiple tabs
user_pref("browser.tabs.warnOnClose", false);   // [DESKTOP]
user_pref("browser.tabs.warnOnCloseOtherTabs", false); // [DESKTOP]
user_pref("browser.tabs.warnOnOpen", false);  // [DESKTOP]
user_pref("browser.warnOnQuit", false);  // [DESKTOP]
// -------------------------------------
// Pref : Disable warnings by entering full screen mode
user_pref("full-screen-api.warning.delay", 0);
user_pref("full-screen-api.warning.timeout", 0);
// -------------------------------------
// Pref : Disable WebVTT logging and test events
// https://developer.mozilla.org/en-US/docs/Web/API/WebVTT_API
// https://git.sny.no/gecko/commit/?id=5701a142f2a5e89b1b716e0edec0f18d5e513678
user_pref("media.webvtt.debug.logging", false);
user_pref("media.webvtt.testing.events", false);
// -------------------------------------
// Pref : Disable Firefox Developer Tools
// https://developer.mozilla.org/en-US/docs/Tools
user_pref("devtools.enabled", false);
// -------------------------------------
// Pref : Disable SSDP (Simple Service Discovery Protocol)
// https://bugzilla.mozilla.org/show_bug.cgi?id=1111967
user_pref("browser.casting.enabled", false);
// -------------------------------------
// Pref : Disable in-browser feed handling
// This preferences determines which web sites are listed in the “Subscription Options” dialog.
user_pref("browser.contentHandlers.types.0.title", "");
user_pref("browser.contentHandlers.types.0.type", "");
user_pref("browser.contentHandlers.types.0.uri", "");
user_pref("browser.contentHandlers.types.1.title", "");
user_pref("browser.contentHandlers.types.1.type", "");
user_pref("browser.contentHandlers.types.1.uri", "");
user_pref("browser.contentHandlers.types.2.title", "");
user_pref("browser.contentHandlers.types.2.type", "");
user_pref("browser.contentHandlers.types.2.uri", "");
user_pref("browser.contentHandlers.types.3.title", "");
user_pref("browser.contentHandlers.types.3.type", "");
user_pref("browser.contentHandlers.types.3.uri", "");
/ -------------------------------------
// Pref : Disable tickle time under wifi network
// It transmit UDP busy-work to the LAN when anticipating low latency network reads and on wifi to mitigate 802.11 Power Save Polling delays
// If you're on wifi and an IPv4 DHCP network we will send 0 length UDP packets at port 4886 of your gateway at the default rate of 60hz for 400ms from the start of the transaction in an attempt to improve RTT during the critical early phases
// https://bugzilla.mozilla.org/show_bug.cgi?id=888268
user_pref("network.tickle-wifi.enabled", false);
// -------------------------------------
// Pref : Disable SSL False Start for HTTPS/WebSockets/SPDY connections
// https://bugzilla.mozilla.org/show_bug.cgi?id=658222
// Avoid the client to complete its handshake before starting the actual session
user_pref("security.ssl.enable_false_start", false);
//--------------------------------------
// Pref : Disable Corroborate.jsm telemetry
// https://bugzilla.mozilla.org/show_bug.cgi?id=1608308
user_pref("corroborator.enabled", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable Remote Settings
// https://github.com/mozilla-services/remote-settings-lambdas
// https://remote-settings.readthedocs.io/en/latest/
user_pref("security.remote_settings.intermediates.enabled", false);
user_pref("security.remote_settings.intermediates.bucket", "");
user_pref("security.remote_settings.intermediates.collection", "");
user_pref("security.remote_settings.intermediates.signer", "");
user_pref("security.remote_settings.crlite_filters.enabled", false);
user_pref("security.remote_settings.crlite_filters.bucket", "");
user_pref("security.remote_settings.crlite_filters.collection", "");
user_pref("security.remote_settings.crlite_filters.signer", "");
// -------------------------------------
// Pref : Disable Default Browser Agent
// https://firefox-source-docs.mozilla.org/main/latest/toolkit/mozapps/defaultagent/default-browser-agent/index.html
user_pref("default-browser-agent.enabled", false); // [WINDOWS] // [DESKTOP]
// -------------------------------------
// Pref : Disable location bar leaking single words to a DNS provider (after searching)
// 0=never resolve single words, 1=heuristic (default), 2=always resolve
// [NOTE] For FF78 value 1 and 2 are the same and always resolve but that will change in future versions
// https://bugzilla.mozilla.org/1642623
user_pref("browser.urlbar.dnsResolveSingleWordsAfterSearch", 0); // [DESKTOP]
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : IJWY To Shut Up   
// I Just Want You To Shut Up : Closing all non necessary communication to mozilla.org etc.
// >>>>>>>>>>>>>>>>>>>>>
// Pref : Block unwanted connections
user_pref("app.feedback.baseURL", "");
user_pref("app.feedbackURL", "");
user_pref("app.channelURL", "");
user_pref("app.creditsURL", "");
user_pref("app.faqURL", "");
user_pref("app.privacyURL", "");
user_pref("app.releaseNotesURL", ""); // [URL SANITIZED]
user_pref("app.support.baseURL", "");
user_pref("app.supportURL", "");
user_pref("app.vendorURL", ""); // [DESKTOP]
user_pref("media.decoder-doctor.new-issue-endpoint", "");
user_pref("network.trr.confirmationNS", "");
user_pref("services.settings.default_signer", ""); // [DESKTOP]
user_pref("services.settings.server", ""); // [DESKTOP]
user_pref("accessibility.support.url", ""); // [DESKTOP]
user_pref("browser.dictionaries.download.url", ""); // [DESKTOP]
user_pref("browser.geolocation.warning.infoURL", ""); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.asrouter.providers.cfr", ""); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.asrouter.providers.cfr-fxa", ""); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.asrouter.providers.onboarding", ""); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.asrouter.providers.whats-new-panel", ""); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.fxaccounts.endpoint", ""); // [DESKTOP]
user_pref("browser.search.searchEnginesURL", ""); // [DESKTOP]
user_pref("extensions.getAddons.themes.browseURL", ""); // [DESKTOP]
user_pref("security.content.signature.root_hash", "");
user_pref("identity.mobilepromo.android", ""); // [DESKTOP]
user_pref("identity.mobilepromo.ios", ""); // [DESKTOP]
user_pref("identity.sendtabpromo.url", ""); // [DESKTOP]
user_pref("toolkit.datacollection.infoURL", ""); // [DESKTOP]
user_pref("dom.keyboardevent.keypress.hack.dispatch_non_printable_keys", "");
user_pref("dom.keyboardevent.keypress.hack.use_legacy_keycode_and_charcode", "");
user_pref("startup.homepage_welcome_url", ""); // [DESKTOP]
user_pref("startup.homepage_welcome_url.additional", ""); // [DESKTOP]
user_pref("startup.homepage_override_url", ""); // [DESKTOP]
user_pref("browser.search.param.yahoo-fr", ""); // [DESKTOP]
user_pref("privacy.restrict3rdpartystorage.partitionedHosts", "");
user_pref("browser.xr.warning.infoURL", ""); // [DESKTOP]
// -------------------------------------
// Pref : Devtools cleanup
user_pref("devtools.devices.url", "");
user_pref("devtools.devedition.promo.url", ""); // [DESKTOP]
user_pref("devtools.performance.recording.ui-base-url", ""); // [DESKTOP]
// -------------------------------------
// Pref : Disable website protocol handlers
user_pref("gecko.handlerService.schemes.irc.0.name", ""); // [DESKTOP]
user_pref("gecko.handlerService.schemes.irc.0.uriTemplate", ""); // [DESKTOP]
user_pref("gecko.handlerService.schemes.ircs.0.name", ""); // [DESKTOP]
user_pref("gecko.handlerService.schemes.ircs.0.uriTemplate", ""); // [DESKTOP]
user_pref("gecko.handlerService.schemes.mailto.0.name", ""); // [DESKTOP]
user_pref("gecko.handlerService.schemes.mailto.0.uriTemplate", ""); // [DESKTOP]
user_pref("gecko.handlerService.schemes.mailto.1.name", ""); // [DESKTOP]
user_pref("gecko.handlerService.schemes.mailto.1.uriTemplate", ""); // [DESKTOP]
user_pref("gecko.handlerService.schemes.webcal.0.uriTemplate", ""); // [DESKTOP]
// -------------------------------------
// Pref : Disable browser translate integration
// https://www.ghacks.net/2018/09/09/mozilla-working-on-google-translate-integration-in-firefox/
user_pref("browser.translation.engine", ""); // [DESKTOP]
user_pref("browser.translation.detectLanguage", false); // [DESKTOP]
user_pref("browser.translation.neverForLanguages", ""); // [DESKTOP]
user_pref("browser.translation.ui.show", false); // [DESKTOP]
// -------------------------------------
// Pref : Decrease vendor useragent info leakage to Mozilla
// https://github.com/pyllyukko/user.js/issues/299
user_pref("general.useragent.vendor", ""); // [DESKTOP]
// -------------------------------------
// Pref : Disable mailnews
user_pref("mailnews.messageid_browser.url", ""); // [DESKTOP]
user_pref("mailnews.mx_service_url", ""); // [DESKTOP]
// -------------------------------------
// Pref : Remove pinned sites from searchbar
user_pref("browser.newtabpage.activity-stream.default.sites", ""); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.improvesearch.topSiteSearchShortcuts.havePinned", ""); // [DESKTOP]
user_pref("browser.newtabpage.activity-stream.improvesearch.topSiteSearchShortcuts.searchEngines", ""); // [DESKTOP]
// -------------------------------------
// Pref : Disable report browser errors in Nightly to Mozilla
// https://bugzilla.mozilla.org/show_bug.cgi?id=1426482
user_pref("browser.chrome.errorReporter.infoURL", "");
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : Miscellaneous
// >>>>>>>>>>>>>>>>>>>>>>
// Pref : Test user.js in about:config
user_pref("_config.applied", true);
// -------------------------------------
// Pref : Updates addons automatically
// https://blog.mozilla.org/addons/how-to-turn-off-add-on-updates/
user_pref("extensions.update.enabled", true);
user_pref("extensions.autoupdate.enabled", true);
// -------------------------------------
// Pref : Decrease system information leakage to Mozilla extensions update servers
user_pref("extensions.update.url", "https://versioncheck-bg.addons.mozilla.org/update/VersionCheck.php?reqVersion=%REQ_VERSION%&id=%ITEM_ID%&version=%ITEM_VERSION%&maxAppVersion=%ITEM_MAXAPPVERSION%&status=%ITEM_STATUS%&appID=%APP_ID%&appVersion=%APP_VERSION%&appOS=%APP_OS%&appABI=%APP_ABI%&locale=en-US&currentAppVersion=%CURRENT_APP_VERSION%&updateType=%UPDATE_TYPE%&compatMode=%COMPATIBILITY_MODE%"); // [URL SANITIZED]
user_pref("extensions.update.background.url", "https://versioncheck-bg.addons.mozilla.org/update/VersionCheck.php?reqVersion=%REQ_VERSION%&id=%ITEM_ID%&version=%ITEM_VERSION%&maxAppVersion=%ITEM_MAXAPPVERSION%&status=%ITEM_STATUS%&appID=%APP_ID%&appVersion=%APP_VERSION%&appOS=%APP_OS%&appABI=%APP_ABI%&locale=en-US&currentAppVersion=%CURRENT_APP_VERSION%&updateType=%UPDATE_TYPE%&compatMode=%COMPATIBILITY_MODE%"); // [URL SANITIZED]
// -------------------------------------
// Pref : Decrease system information leakage to Mozilla addons update servers
user_pref("extensions.getAddons.browseAddons", "https://addons.mozilla.org/en-US/android/collections/4757633/mob/?page=1&collection_sort=-popularity"); // [URL SANITIZED]
user_pref("extensions.getAddons.get.url", "https://services.addons.mozilla.org/api/v3/addons/search/?guid=%IDS%&lang=en-US"); // [URL SANITIZED]
user_pref("extensions.getAddons.link.url", "https://addons.mozilla.org/en-US/firefox/"); // [URL SANITIZED]
user_pref("extensions.getAddons.search.browseURL", "https://addons.mozilla.org/en-US/android/search?q=%TERMS%&platform=%OS%&appver=%VERSION%"); // [URL SANITIZED]
// -------------------------------------
// Pref : Disable Web Compatibility Reporter
// Web Compatibility Reporter adds a "Report Site Issue" button to send data to Mozilla
user_pref("extensions.webcompat-reporter.enabled", false);
user_pref("extensions.webcompat-reporter.newIssueEndpoint", "");
// -------------------------------------
// Pref : Don't let XPIProvider install distribution add-ons
user_pref("extensions.installDistroAddons", false); // [DEFAULT: false]
// -------------------------------------
// Pref : Disable experiments extensions
user_pref("extensions.experiments.enabled", false);
// -------------------------------------
// Pref : Provide haptic feedback on longPress selection events
user_pref("layout.accessiblecaret.hapticfeedback", false); // [DEFAULT: true]
// -------------------------------------
// Pref : Disable Firefox Accounts and Sync
user_pref("identity.fxaccounts.enabled", false); // [DESKTOP]
user_pref("identity.fxaccounts.auth.uri", "");
user_pref("identity.fxaccounts.remote.oauth.uri", "");
user_pref("identity.fxaccounts.remote.profile.uri", "");
user_pref("identity.sync.tokenserver.uri", "");
user_pref("identity.fxaccounts.remote.root", ""); // [DESKTOP]
user_pref("identity.fxaccounts.pairing.enabled", false); // [DESKTOP]
user_pref("identity.fxaccounts.remote.pairing.uri", ""); // [DESKTOP]
user_pref("identity.fxaccounts.toolbar.accessed", false); // [DESKTOP]
user_pref("identity.fxaccounts.toolbar.enabled", false); // [DESKTOP]
user_pref("identity.fxaccounts.migrateToDevEdition", false); // [DESKTOP]
user_pref("identity.fxaccounts.contextParam", ""); // [DESKTOP]
user_pref("identity.fxaccounts.commands.enabled", false); // [DESKTOP]
user_pref("identity.fxaccounts.autoconfig.uri", ""); // [DESKTOP]
user_pref("identity.fxaccounts.service.monitorLoginUrl", ""); // [DESKTOP]
user_pref("identity.fxaccounts.service.sendLoginUrl", ""); // [DESKTOP]
// -------------------------------------
// Pref : Disable Webextensions sync
user_pref("webextensions.storage.sync.enabled", false); // [DESKTOP]
user_pref("webextensions.storage.sync.serverURL", "");
user_pref("webextensions.storage.sync.kinto", false);
// -------------------------------------
// Pref : Force Punycode for Internationalized Domain Names
// https://www.xudongz.com/blog/2017/idn-phishing/
// https://wiki.mozilla.org/IDN_Display_Algorithm
// https://en.wikipedia.org/wiki/IDN_homograph_attack
// https://www.mozilla.org/en-US/security/advisories/mfsa2017-02/
user_pref("network.IDN_show_punycode", true);
// -------------------------------------
// Pref : Disable page thumbnail collection
// Look in profile/thumbnails directory, you may want to clean that out
user_pref("browser.pagethumbnails.capturing_disabled", true); // [HIDDEN PREF]
// -------------------------------------
// Pref : Do not automatically send selection to clipboard on Linux and some UNIX-like platforms
user_pref("clipboard.autocopy", false);
// -------------------------------------
// Pref : Disable "beacon" asynchronous HTTP transfers (used for analytics)
// https://developer.mozilla.org/en-US/docs/Web/API/navigator.sendBeacon
user_pref("beacon.enabled", false);
// -------------------------------------
// Pref : Disable speech recognition
// https://dvcs.w3.org/hg/speech-api/raw-file/tip/speechapi.html
// https://developer.mozilla.org/en-US/docs/Web/API/SpeechRecognition
// https://wiki.mozilla.org/HTML5_Speech_API
user_pref("media.webspeech.recognition.enable", false); // [DEFAULT: true]
user_pref("media.webspeech.recognition.force_enable", false); // [DEFAULT: false]
user_pref("media.webspeech.test.enable", false); // [DEFAULT: false]
user_pref("media.webspeech.test.fake_fsm_events", false); // [DEFAULT: false]
user_pref("media.webspeech.test.fake_recognition_service", false); // [DEFAULT: false]
// -------------------------------------
// Pref : Don't use Mozilla-provided location-specific search engines
user_pref("browser.search.geoSpecificDefaults", false);
user_pref("browser.search.geoSpecificDefaults.url", "");
// -------------------------------------
// Pref : Don't monitor OS online/offline connection state
// https://gitlab.torproject.org/legacy/trac/-/issues/18945
user_pref("network.manage-offline-status", false); // [DEFAULT: true]
// -------------------------------------
// Pref : Set File URI Origin Policy
user_pref("security.fileuri.strict_origin_policy", true);
// -------------------------------------
// Pref : Disable SVG in OpenType fonts
// https://wiki.mozilla.org/SVGOpenTypeFonts
// https://github.com/iSECPartners/publications/tree/master/reports/Tor%20Browser%20Bundle
user_pref("gfx.font_rendering.opentype_svg.enabled", false);
// -------------------------------------
// Pref : Ensure you have a security delay when installing add-ons (milliseconds)
user_pref("security.dialog_enable_delay", 700);
// -------------------------------------
// Pref : Disable ADB extension download
// https://developer.mozilla.org/docs/Tools/WebIDE
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/16222
user_pref("devtools.debugger.remote-enabled", false);
user_pref("devtools.remote.adb.extensionURL", ""); // [DESKTOP]
user_pref("devtools.remote.adb.extensionID", ""); // [DESKTOP]
// -------------------------------------
// Pref : Force local debugging
// https://developer.mozilla.org/en-US/docs/Tools/Remote_Debugging/Debugging_Firefox_Desktop
// https://developer.mozilla.org/en-US/docs/Tools/Tools_Toolbox#Advanced_settings
user_pref("devtools.debugger.force-local", true);
// -------------------------------------
// Pref : Prevent accessibility services from accessing your browser
// https://support.mozilla.org/kb/accessibility-services
user_pref("accessibility.force_disabled", 1);
// -------------------------------------
// Pref : Remove temp files opened with an external application
// https://bugzilla.mozilla.org/302433
user_pref("browser.helperApps.deleteTempFileOnExit", true);
// -------------------------------------
// Pref : Disable various developer tools in browser context
// https://github.com/pyllyukko/user.js/issues/179#issuecomment-246468676
user_pref("devtools.chrome.enabled", false);
// -------------------------------------
// Pref : Disable MathML (Mathematical Markup Language)
// [TEST] https://browserleaks.com/features - look for Modernizr.mathml
// https://bugzilla.mozilla.org/1173199
user_pref("mathml.disabled", true);
// -------------------------------------
// Pref : Disable middle mouse click paste leaking on Linux
// https://bugzilla.mozilla.org/1528289
// Useless on Android
user_pref("middlemouse.paste", false);
// -------------------------------------
// Pref : Disable middle mouse click opening links from clipboard
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/10089
user_pref("middlemouse.contentLoadURL", false);
// -------------------------------------
// Pref : Limit HTTP redirects (this does not control redirects with HTML meta tags or JS)
// [NOTE] A low setting of 5 or under will probably break some sites (e.g. gmail logins). To control HTML Meta tag and JS redirects, use an extension.
user_pref("network.http.redirection-limit", 15); // [DEFAULT: 20]
// -------------------------------------
// Pref : Remove webchannel whitelist
user_pref("webchannel.allowObject.urlWhitelist", "");
// -------------------------------------
// Pref : Disable exposure of system colors to CSS or canvas
// [NOTE] May cause black on black for elements with undefined colors
// https://bugzilla.mozilla.org/buglist.cgi?bug_id=232227,1330876
// user_pref("ui.use_native_colors", true);
// -------------------------------------
// Pref : Discourage downloading to desktop (0=desktop 1=downloads 2=last used)
user_pref("browser.download.folderList", 2);
// -------------------------------------
// Pref : Enforce user interaction, for security, by always asking the user where to download and then forget
// [FENNEC] Fix for downloading issues
// user_pref("browser.download.useDownloadDir", false); //  [BUG] It causes the breakage of all downloads
user_pref("browser.download.lastDir", ""); // [DESKTOP]
// -------------------------------------
// Pref : Disable adding downloads to the system's "recent documents" list
user_pref("browser.download.manager.addToRecentDocs", false);
// -------------------------------------
// Pref : Disable "open with" in download dialog
// This is very useful to enable when the browser is sandboxed (e.g. via AppArmor) in such a way that it is forbidden to run external applications.
// [NOTE] This may interfere with some users' workflow or methods
// https://bugzilla.mozilla.org/1281959
user_pref("browser.download.forbid_open_with", true);
// -------------------------------------
// Pref : Lock down allowed extension directories
// This will break extensions, language packs, themes and any other XPI files which are installed outside of profile directories
// https://mike.kaply.com/2012/02/21/understanding-add-on-scopes/
// archived: https://archive.is/DYjAM
user_pref("extensions.enabledScopes", 5); // [DEFAULT: 1] // [HIDDEN PREF]
user_pref("extensions.autoDisableScopes", 15); // [DEFAULT: 15]
// -------------------------------------
// Pref : Enable warning when websites try to install add-ons
user_pref("xpinstall.whitelist.required", true); // [DEFAULT: true]
// -------------------------------------
// Pref : Enforce CSP (Content Security Policy)
// [WARNING] CSP is a very important and widespread security feature. Don't disable it!
// https://developer.mozilla.org/docs/Web/HTTP/CSP
user_pref("security.csp.enable", true); // [DEFAULT: true]
// -------------------------------------
// Pref : Block top level window data: URIs
// https://bugzilla.mozilla.org/1331351
// https://www.wordfence.com/blog/2017/01/gmail-phishing-data-uri/
// https://www.fxsitecompat.com/en-CA/docs/2017/data-url-navigations-on-top-level-window-will-be-blocked/
user_pref("security.data_uri.block_toplevel_data_uri_navigations", true); // [DEFAULT: true]
// -------------------------------------
// Pref : Enable only whitelisted URL protocol handlers
// https://news.ycombinator.com/item?id=13047883
// https://bugzilla.mozilla.org/show_bug.cgi?id=167475
// https://github.com/pyllyukko/user.js/pull/285#issuecomment-298124005
// [NOTE] Disabling nonessential protocols breaks all interaction with custom protocols such as mailto:, irc:, magnet: ... and breaks opening third-party mail/messaging/torrent/... clients when clicking on links with these protocols
// If you want to enable a protocol, set network.protocol-handler.expose.(protocol) to true and network.protocol-handler.external.(protocol) to:
// * true, if the protocol should be handled by an external application
// * false, if the protocol should be handled internally by Firefox
user_pref("network.protocol-handler.warn-external-default", true);
user_pref("network.protocol-handler.external.javascript", false);
user_pref("network.protocol-handler.external.data", false);
user_pref("network.protocol-handler.external.about", false); // [DESKTOP]
user_pref("network.protocol-handler.external.blob", false); // [DESKTOP]
user_pref("network.protocol-handler.external.chrome", false); // [DESKTOP]
user_pref("network.protocol-handler.external.file", false); // [DESKTOP]
user_pref("network.protocol-handler.external.ftp", false); // [DESKTOP]
user_pref("network.protocol-handler.external.http", false); // [DESKTOP]
user_pref("network.protocol-handler.external.https", false); // [DESKTOP]
user_pref("network.protocol-handler.external.moz-extension", false); // [DESKTOP]
user_pref("network.protocol-handler.external.ms-windows-store", false); // [DESKTOP]
user_pref("network.protocol-handler.expose-all", false);
user_pref("network.protocol-handler.expose.http", true);
user_pref("network.protocol-handler.expose.https", true);
user_pref("network.protocol-handler.expose.javascript", true);
user_pref("network.protocol-handler.expose.moz-extension", true);
user_pref("network.protocol-handler.expose.ftp", true);
user_pref("network.protocol-handler.expose.file", true);
user_pref("network.protocol-handler.expose.about", true);
user_pref("network.protocol-handler.expose.chrome", true);
user_pref("network.protocol-handler.expose.blob", true);
user_pref("network.protocol-handler.expose.data", true);
// -------------------------------------
// Pref : Don't allow meta-refresh when backgrounded
user_pref("browser.meta_refresh_when_inactive.disabled", true);
// -------------------------------------
// Pref : Optimize images memory usage
user_pref("image.downscale-during-decode.enabled", true);
// -------------------------------------
// Pref : Disable firstrun showup
user_pref("browser.firstrun.show.uidiscovery", false); // [DEFAULT: true]
user_pref("browser.firstrun.show.localepicker", false); // [DEFAULT: false]
// -------------------------------------
// Pref : Disable sending console to logcat on release builds.
user_pref("consoleservice.logcat", false);
// -------------------------------------
// Pref : Disable Pocket
// https://support.mozilla.org/en-US/kb/save-web-pages-later-pocket-firefox
// https://github.com/pyllyukko/user.js/issues/143
user_pref("browser.pocket.enabled", false); // [DESKTOP]
user_pref("extensions.pocket.enabled", false); // [DESKTOP]
user_pref("extensions.pocket.api", ""); // [DESKTOP]
user_pref("extensions.pocket.oAuthConsumerKey", ""); // [DESKTOP]
user_pref("extensions.pocket.site", ""); // [DESKTOP]
// -------------------------------------
// Pref : Lock web content in file processes
// https://bugzilla.mozilla.org/1343184
user_pref("browser.tabs.remote.allowLinkedWebInFileUriProcess", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable Displaying Javascript in History URLs
user_pref("browser.urlbar.filter.javascript", true); // [DESKTOP]
// -------------------------------------
// Pref : Disable Firefox's built-in PDF reader
// This setting controls if the option "Display in Firefox" is available in the setting below and by effect controls whether PDFs are handled in-browser or externally ("Ask" or "Open With")
// PROS: pdfjs is lightweight, open source, and as secure/vetted as any pdf reader out there (more than most)
// Exploits are rare (1 serious case in 4 yrs), treated seriously and patched quickly.
// It doesn't break "state separation" of browser content (by not sharing with OS, independent apps).
// It maintains disk avoidance and application data isolation. It's convenient. You can still save to disk.
// CONS: You may prefer a different pdf reader for security reasons
// CAVEAT: JS can still force a pdf to open in-browser by bundling its own code (rare)
user_pref("pdfjs.disabled", true); // [DEFAULT: false] // [DESKTOP]
user_pref("pdfjs.enabledCache.state", false); // [DESKTOP]
user_pref("pdfjs.previousHandler.alwaysAskBeforeHandling", true); // [DESKTOP]
user_pref("browser.helperApps.showOpenOptionForPdfJS", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable exposure of system colors to CSS or canvas
// [NOTE] See second listed bug: may cause black on black for elements with undefined colors
// https://bugzilla.mozilla.org/buglist.cgi?bug_id=232227,1330876
user_pref("ui.use_standins_for_native_colors", true); // [DESKTOP]
// -------------------------------------
// Pref : Close tab with double click action
user_pref("browser.tabs.closeTabByDblclick", true); // [DESKTOP]
// -------------------------------------
// Pref : Remove special permissions for certain mozilla domains
// resource://app/defaults/permissions
user_pref("permissions.manager.defaultsUrl", ""); // [DESKTOP]
// -------------------------------------
// Pref : Disable in-content SVG rendering
// Disabling SVG support breaks many UI elements on many sites incl. youtube player controls
// https://bugzilla.mozilla.org/show_bug.cgi?id=1216893
// https://github.com/iSECPartners/publications/raw/master/reports/Tor%20Browser%20Bundle/Tor%20Browser%20Bundle%20-%20iSEC%20Deliverable%201.3.pdf#16
// user_pref("svg.disabled", true);
// -------------------------------------
// Pref : Enable FF Process Priority Manager
// https://bugzilla.mozilla.org/show_bug.cgi?id=1548364
user_pref("dom.ipc.processPriorityManager.enabled", true); // [DESKTOP] // [TEST]
// -------------------------------------
// Pref : Enforce no system colors
// [NOTE] They can be fingerprinted
user_pref("browser.display.use_system_colors", false); // [DEFAULT: false]
// -------------------------------------
// Pref : Disable purge site data after identifying tracking site via cookies
// [NOTE] Relax this with 'privacy.clearOnShutdown.*' enabled
// https://bugzilla.mozilla.org/show_bug.cgi?id=1599262
// https://www.ghacks.net/2020/03/04/firefox-75-will-purge-site-data-if-associated-with-tracking-cookies/
user_pref("privacy.purge_trackers.enabled", false);
// -------------------------------------
// Pref : Disable permissions delegation
// Currently applies to cross-origin geolocation, camera, mic and screen-sharing permissions, and fullscreen requests. Disabling delegation means any prompts for these will show/use their correct 3rd party origin
// https://groups.google.com/forum/#!topic/mozilla.dev.platform/BdFOMAuCGW8/discussion
user_pref("permissions.delegation.enabled", false);
// -------------------------------------
// Pref : Disable the default checkedness for "Save card and address to Firefox" checkboxes
// https://bugzilla.mozilla.org/show_bug.cgi?id=1477106
user_pref("dom.payments.defaults.saveAddress", false);
user_pref("dom.payments.defaults.saveCreditCard", false);
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : Web Workers
// >>>>>>>>>>>>>>>>>>>>>>
// Pref : Disable service workers
// Service workers essentially act as proxy servers that sit between web apps, and the browser and network, are event driven, and can control the web page/site it is associated with, intercepting and modifying navigation and resource requests, and caching resources.
// [NOTE] Service worker APIs are hidden (in Firefox) and cannot be used when in PB mode.
// [NOTE] Service workers only run over HTTPS. Service workers have no DOM access.
user_pref("dom.serviceWorkers.enabled", false);
// -------------------------------------
// Pref : Disable push service
// The upstream autopush endpoint must have the Google API key corresponding to the App's sender ID; we bake this assumption directly into the URL.
user_pref("dom.push.enabled", false);
user_pref("dom.push.serverURL", "");
// -------------------------------------
// Pref : Disable web notifications
// [NOTE] Web Notifications can also use service workers and are behind a prompt
// https://developer.mozilla.org/docs/Web/API/Notifications_API
user_pref("notification.feature.enabled", false);
user_pref("dom.webnotifications.enabled", false);
user_pref("dom.webnotifications.serviceworker.enabled", false);
// -------------------------------------
// Pref : Prevent tooltips from showing up
user_pref("browser.chrome.toolbar_tips", false);
// -------------------------------------
// Pref : Disable push notifications
// Web apps can receive messages pushed to them from a server, whether or not the web app is in the foreground, or even currently loaded
// https://developer.mozilla.org/docs/Web/API/Push_API
user_pref("dom.push.alwaysConnect", false);
user_pref("dom.push.debug", false);
user_pref("dom.push.connection.enabled", false);
user_pref("dom.push.userAgentID", "");
user_pref("dom.push.udp.wakeupEnabled", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable hiding mime types not associated with a plugin
user_pref("browser.download.hide_plugins_without_extensions", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable PiP (Picture-in-picture)
user_pref("media.videocontrols.picture-in-picture.enabled", false);
user_pref("media.videocontrols.picture-in-picture.video-toggle.enabled", false);
user_pref("media.videocontrols.picture-in-picture.video-toggle.flyout-enabled", false);
user_pref("media.videocontrols.picture-in-picture.audio-toggle.enabled", false); // [DESKTOP]
user_pref("media.videocontrols.picture-in-picture.keyboard-controls.enabled", false); // [DESKTOP]
user_pref("media.videocontrols.picture-in-picture.video-toggle.always-show", false); // [DESKTOP]
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : DOM (Document Object Model) & Javascript
// >>>>>>>>>>>>>>>>>>>>>>
// Pref : Disable right-click menu manipulation via JavaScript
user_pref("dom.event.contextmenu.enabled", false);
// -------------------------------------
// Pref : Disable website access to clipboard events/content
// [NOTE] This will break some sites' functionality e.g. Outlook, Twitter, Facebook, Wordpress
// [WARNING] If both 'middlemouse.paste' and 'general.autoScroll' are true (at least one is default (false) then enabling this pref can leak clipboard content
// https://developer.mozilla.org/en-US/docs/Mozilla/Preferences/Preference_reference/dom.event.clipboardevents.enabled
// https://www.ghacks.net/2014/01/08/block-websites-reading-modifying-clipboard-contents-firefox/
// https://bugzilla.mozilla.org/1528289
user_pref("dom.event.clipboardevents.enabled", false);
// -------------------------------------
// Pref : Disable "Confirm you want to leave" dialog on page close
// Does not prevent JS leaks of the page close event.
// https://developer.mozilla.org/docs/Web/Events/beforeunload
// https://support.mozilla.org/questions/1043508
user_pref("dom.disable_beforeunload", true);
// -------------------------------------
// Pref : Disable shaking the screen (Vibrator API)
user_pref("dom.vibrator.enabled", false);
// -------------------------------------
// Pref : Disable clipboard commands (cut/copy) from "non-privileged" content
// This disable document.execCommand("cut"/"copy") to protect your clipboard
// https://bugzilla.mozilla.org/1170911
// user_pref("dom.allow_cut_copy", false);
// -------------------------------------
// Pref : Disable asm.js
// https://www.mozilla.org/security/advisories/mfsa2015-29/
// https://www.mozilla.org/security/advisories/mfsa2015-50/
// https://www.mozilla.org/security/advisories/mfsa2017-01/#CVE-2017-5375
// https://www.mozilla.org/security/advisories/mfsa2017-05/#CVE-2017-5400
// https://rh0dev.github.io/blog/2017/the-return-of-the-jit/
user_pref("javascript.options.asmjs", false);
// -------------------------------------
// Pref : Disable Ion, baseline JIT and RegExp to help harden JS against exploits
// [NOTE] In FF75+, when (both) Ion and JIT are disabled, **and** the new hidden pref is enabled, then Ion can still be used by extensions
// [WARNING] Disabling Ion/JIT can cause some site issues and performance loss
// https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0817
// https://gitlab.torproject.org/legacy/trac/-/issues/26019
user_pref("javascript.options.ion", false);
// user_pref("javascript.options.baselinejit", false); // [BUG] Addons issues
// user_pref("javascript.options.jit_trustedprincipals", true); // [HIDDEN PREF] // [DESKTOP ?]
user_pref("javascript.options.native_regexp", false);
// -------------------------------------
// Pref : Disable WebAssembly
// https://webassembly.org/
// https://developer.mozilla.org/docs/WebAssembly
// https://en.wikipedia.org/wiki/WebAssembly
// https://gitlab.torproject.org/legacy/trac/-/issues/21549
user_pref("javascript.options.wasm", false);
user_pref("javascript.options.wasm_baselinejit", false);
user_pref("javascript.options.wasm_cranelift", false);
user_pref("javascript.options.wasm_gc", false);
user_pref("javascript.options.wasm_ionjit", false);
user_pref("javascript.options.wasm_reftypes", false);
user_pref("javascript.options.wasm_trustedprincipals", false);
user_pref("javascript.options.wasm_verbose", false);
user_pref("javascript.options.wasm_multi_value", false);
// -------------------------------------
// Pref : Disable Shared Memory (Spectre mitigation)
// https://github.com/tc39/ecmascript_sharedmem/blob/master/TUTORIAL.md
// https://blog.mozilla.org/security/2018/01/03/mitigations-landing-new-class-timing-attack/
user_pref("javascript.options.shared_memory", false); // [DEFAULT: true]
// -------------------------------------
// Pref : Enable (limited but sufficient) window.opener protection
// Makes rel=noopener implicit for target=_blank in anchor and area elements when no rel attribute is set
user_pref("dom.targetBlankNoOpener.enabled", true); // [DEFAULT: false]
// -------------------------------------
// Pref : Don't reveal build ID
// https://bugzilla.mozilla.org/show_bug.cgi?id=583181
// user_pref("browser.startup.homepage_override.buildID", "");
// user_pref("extensions.lastAppBuildId", "");
// user_pref("media.gmp-manager.buildID", "");
// user_pref("browser.sessionstore.upgradeBackup.latestBuildID", ""); // [DESKTOP]
// -------------------------------------
// Pref : Disable raw TCP socket support (mozTCPSocket)
// https://gitlab.torproject.org/legacy/trac/-/issues/18863
// https://www.mozilla.org/en-US/security/advisories/mfsa2015-97/
// https://developer.mozilla.org/docs/Mozilla/B2G_OS/API/TCPSocket
user_pref("dom.mozTCPSocket.enabled", false); // [DESKTOP]
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : Media / Camera / Mic
// >>>>>>>>>>>>>>>>>>>>>>
// Pref : WebSockets is a technology that makes it possible to open an interactive communication session between the user's browser and a server. (May leak IP when using proxy/VPN)
user_pref("media.peerconnection.enabled", false);
// -------------------------------------
// Pref : Limit WebRTC IP leaks if using WebRTC
// https://bugzilla.mozilla.org/buglist.cgi?bug_id=1189041,1297416
// https://wiki.mozilla.org/Media/WebRTC/Privacy 
user_pref("media.peerconnection.ice.default_address_only", true);
user_pref("media.peerconnection.ice.no_host", true);
user_pref("media.peerconnection.use_document_iceservers", false);
user_pref("media.peerconnection.identity.enabled", false);
user_pref("media.peerconnection.turn.disable", true);
user_pref("media.peerconnection.ice.tcp", false);
user_pref("media.peerconnection.video.enabled", false);
// -------------------------------------
// Pref : Disable WebGL I/II
// [WARNING] WebGL introduce high fingerprinting... (webgl is direct hardware js) 
user_pref("webgl.disabled", true);
user_pref("webgl.enable-webgl2", false);
user_pref("webgl.min_capability_mode", true);
user_pref("pdfjs.enableWebGL", false);
user_pref("webgl.disable-wgl", true); // [DEFAULT: false]
user_pref("webgl.disable-fail-if-major-performance-caveat", true);
user_pref("webgl.can-lose-context-in-foreground", false); // [DEFAULT: true]
user_pref("webgl.force-enabled", false);
user_pref("webgl.vendor-string-override", " ");
user_pref("webgl.renderer-string-override", " ");
user_pref("webgl.all-angle-options", false);
user_pref("webgl.allow-immediate-queries", false);
user_pref("webgl.default-antialias", false);
user_pref("webgl.enable-surface-texture", false);
user_pref("webgl.cgl.multithreaded", false);
user_pref("webgl.dxgl.enabled", false);
// -------------------------------------
// Pref : Disable screensharing and audiocapture
user_pref("media.getusermedia.screensharing.enabled", false); // [DESKTOP]
user_pref("media.getusermedia.browser.enabled", false);
user_pref("media.getusermedia.audiocapture.enabled", false);
// -------------------------------------
// Pref : Disable camera support
user_pref("device.camera.enabled", false); // [DEFAULT: true]
user_pref("media.realtime_decoder.enabled", false); // [DEFAULT: true]
// -------------------------------------
// Pref : Disable canvas capture stream
// https://developer.mozilla.org/docs/Web/API/HTMLCanvasElement/captureStream
user_pref("canvas.capturestream.enabled", false);
// -------------------------------------
// Pref : Disable camera image capture
// https://gitlab.torproject.org/legacy/trac/-/issues/16339
user_pref("dom.imagecapture.enabled", false); // [DEFAULT: false]
// -------------------------------------
// Pref : Disable offscreen canvas
// https://developer.mozilla.org/docs/Web/API/OffscreenCanvas
user_pref("gfx.offscreencanvas.enabled", false); // [DEFAULT: false]
// -------------------------------------
// Pref : Disable autoplay of HTML5 media
// 0=Allow all, 1=Block non-muted media, 5=Block all
// [NOTE] You can set exceptions under site permissions
user_pref("media.autoplay.default", 5);
user_pref("media.autoplay.block-event.enabled", true); // [DEFAULT: false]
user_pref("media.autoplay.block-webaudio", true); // [DEFAULT: false]
// -------------------------------------
// Pref : Disable autoplay of HTML5 media if you interacted with the site
// 0=sticky (default), 1=transient, 2=user
// https://support.mozilla.org/questions/1293231 ***/
user_pref("media.autoplay.blocking_policy", 2);
// -------------------------------------
// Pref : Disable autoplay of HTML5 media in non-active tabs
// https://www.ghacks.net/2016/11/14/firefox-51-blocks-automatic-audio-playback-in-non-active-tabs/
user_pref("media.block-autoplay-until-in-foreground", true); // [DEFAULT: true]
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : Location Bar / Search Bar / Suggestions / History / Forms
// >>>>>>>>>>>>>>>>>>>>
// Pref : Do not submit invalid URIs entered in the address bar to the default search engine
user_pref("keyword.enabled", true);  // [DEFAULT: true]
// -------------------------------------
// Pref : Don't try to guess domain names when entering an invalid domain name in URL bar
user_pref("browser.fixup.alternate.enabled", false);
// -------------------------------------
// Pref : Don't trim HTTP off of URLs in the address bar
// https://bugzilla.mozilla.org/show_bug.cgi?id=665580
user_pref("browser.urlbar.trimURLs", false);
// -------------------------------------
// Pref : Limit history leaks via enumeration (PER TAB: back/forward)
// This is a PER TAB session history. You still have a full history stored under all history
// Minimum=1=currentpage, 2 is the recommended minimum as some pages use it as a means of referral (e.g. hotlinking), 4 or 6 or 10 may be more practical
user_pref("browser.sessionhistory.max_entries", 4); // [DEFAULT: 50]
// -------------------------------------
// Pref : Disable coloring of visited links - CSS history leak
// [NOTE] This has NEVER been fully "resolved": in Mozilla/docs it is stated it's only in 'certain circumstances'
// [TEST] https://earthlng.github.io/testpages/visited_links.html (see github wiki APPENDIX C on how to use)
// https://dbaron.org/mozilla/visited-privacy
// https://bugzilla.mozilla.org/147777
// https://developer.mozilla.org/docs/Web/CSS/Privacy_and_the_:visited_selector
user_pref("layout.css.visited_links_enabled", false);
// -------------------------------------
// Pref : Disable live search suggestions
user_pref("browser.search.suggest.enabled", false);
user_pref("browser.search.suggest.enabled.private", false);
user_pref("browser.urlbar.suggest.searches", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable "Would you like to turn on search suggestions" prompt message
user_pref("browser.search.suggest.prompted", true);
// -------------------------------------
// Pref : Disable information entered in web page forms and the search bar
// [NOTE] You can clear formdata on exiting Firefox
user_pref("browser.formfill.enable", false);
// -------------------------------------
// Pref : Disable date/time picker
// [WARNING] This can leak your locale if not en-US
// https://gitlab.torproject.org/legacy/trac/-/issues/21787
// https://bugzilla.mozilla.org/show_bug.cgi?id=1287503
// user_pref("dom.forms.datetime", false);
// -------------------------------------
// Pref : Disable Windows jumplist
user_pref("browser.taskbar.lists.enabled", false); // [WINDOWS] // [DESKTOP]
user_pref("browser.taskbar.lists.frequent.enabled", false); // [WINDOWS] // [DESKTOP]
user_pref("browser.taskbar.lists.recent.enabled", false); // [WINDOWS] // [DESKTOP]
user_pref("browser.taskbar.lists.tasks.enabled", false); // [WINDOWS] // [DESKTOP]
// -------------------------------------
// Pref : Disable Windows taskbar preview
user_pref("browser.taskbar.previews.enable", false); // [WINDOWS] // [DESKTOP]
// -------------------------------------
// Pref : Disable UITour backend so there is no chance that a remote page can use it
user_pref("browser.uitour.enabled", false); // [DESKTOP]
user_pref("browser.uitour.url", ""); // [DESKTOP]
user_pref("browser.uitour.themeOrigin", ""); // [DESKTOP]
// -------------------------------------
// Pref : Disable location bar making speculative connections
// https://bugzilla.mozilla.org/1348275
user_pref("browser.urlbar.speculativeConnect.enabled", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable location bar suggesting "preloaded" top websites
// https://bugzilla.mozilla.org/1211726
user_pref("browser.urlbar.usepreloadedtopurls.enabled", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable Firefox Tips / Search suggestions
user_pref("browser.urlbar.daysBeforeHidingSuggestionsPrompt", 0); // [DESKTOP]
user_pref("browser.urlbar.searchSuggestionsChoice", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable URL bar autocomplete and history/bookmarks suggestions dropdown
// http://kb.mozillazine.org/Disabling_autocomplete_-_Firefox#Firefox_3.5
user_pref("browser.urlbar.autocomplete.enabled", false);
user_pref("browser.urlbar.suggest.history", false); // [DESKTOP]
user_pref("browser.urlbar.suggest.bookmark", false); // [DESKTOP]
user_pref("browser.urlbar.suggest.openpage", false); // [DESKTOP]
user_pref("browser.urlbar.suggest.topsites", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable browsing and download history
user_pref("places.history.enabled", false); // [DESKTOP]
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : Security
// >>>>>>>>>>>>>>>>>>>>
// Pref : Blocking GD Parking Scam Site 
user_pref("network.dns.localDomains", "");
// -------------------------------------
// Pref : Enable HSTS preload list (pre-set HSTS sites list provided by Mozilla)
// https://blog.mozilla.org/security/2012/11/01/preloading-hsts/
// https://wiki.mozilla.org/Privacy/Features/HSTS_Preload_List
// https://en.wikipedia.org/wiki/HTTP_Strict_Transport_Security
user_pref("network.stricttransportsecurity.preloadlist", true);
// -------------------------------------
// Pref : Disable insecure TLS version fallback
// https://bugzilla.mozilla.org/show_bug.cgi?id=1084025
// https://github.com/pyllyukko/user.js/pull/206#issuecomment-280229645
user_pref("security.tls.version.fallback-limit", 3);
// -------------------------------------
// Pref : Enable OCSP Must-Staple support
// https://blog.mozilla.org/security/2015/11/23/improving-revocation-ocsp-must-staple-and-short-lived-certificates/
// https://www.entrust.com/ocsp-must-staple/
// https://github.com/schomery/privacy-settings/issues/40
// [NOTE] Firefox falls back on plain OCSP when must-staple is not configured on the host certificate
user_pref("security.ssl.enable_ocsp_must_staple", true);
// -------------------------------------
// Pref : Control remote debugging
user_pref("devtools.remote.usb.enabled", false); // [DEFAULT: false]
user_pref("devtools.remote.wifi.enabled", false); // [DEFAULT: false]
// -------------------------------------
// Pref : Disable dump function
// True if you always want dump() to work
// On Android, you also need to do the following for the output to show up in logcat:
// $ adb shell stop
// $ adb shell setprop log.redirect-stdio true
// $ adb shell start
user_pref("browser.dom.window.dump.enabled", false); // [DEFAULT: true]
user_pref("devtools.console.stdout.chrome", false); // [DEFAULT: true]
// -------------------------------------
// Pref : Disable number linkification
user_pref("browser.ui.linkify.phone", false); // [DEFAULT: false]
// -------------------------------------
// Pref : Controls which bits of private data to clear.
user_pref("privacy.item.cache", true); // [DEFAULT: true]
user_pref("privacy.item.cookies", true); // [DEFAULT: true]
user_pref("privacy.item.offlineApps", true); // [DEFAULT: true]
user_pref("privacy.item.history", true); // [DEFAULT: true]
user_pref("privacy.item.searchHistory", true); // [DEFAULT: true]
user_pref("privacy.item.formdata", true); // [DEFAULT: true]
user_pref("privacy.item.downloads", true); // [DEFAULT: true]
user_pref("privacy.item.passwords", true); // [DEFAULT: true]
user_pref("privacy.item.sessions", true); // [DEFAULT: true]
user_pref("privacy.item.geolocation", true); // [DEFAULT: true]
user_pref("privacy.item.siteSettings", true); // [DEFAULT: true]
user_pref("privacy.item.syncAccount", true); // [DEFAULT: true]
// -------------------------------------
// Pref : Disable tab hiding API by default
user_pref("extensions.webextensions.tabhide.enabled", false); // [DEFAULT: true] // [DESKTOP]
// -------------------------------------
// Pref : WebSockets is a technology that makes it possible to open an interactive communication session between the user's browser and a server. (May leak IP when using proxy/VPN)
// https://bugzilla.mozilla.org/show_bug.cgi?id=1091016
user_pref("network.websocket.enabled", false); // [HIDDEN PREF] // [DEPRECATED] // [DESKTOP]
// -------------------------------------
// Pref : Block new requests asking to access your hardware components
// This will prevent any websites not listed in a specific list from requesting permission to access your components
user_pref("permissions.default.geo", 2); // [DESKTOP]
user_pref("permissions.default.camera", 2); // [DESKTOP]
user_pref("permissions.default.microphone", 2); // [DESKTOP]
user_pref("permissions.default.desktop-notification", 2); // [DESKTOP]
// -------------------------------------
// Pref : Disable the Enterprise Roots preference
// https://support.mozilla.org/en-US/kb/how-disable-enterprise-roots-preference
user_pref("security.enterprise_roots.enabled", false);
user_pref("security.certerrors.mitm.auto_enable_enterprise_roots", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable access to navigator.mediaDevices features on HTTP web pages
// https://developer.mozilla.org/en-US/docs/Web/API/Navigator/mediaDevices
user_pref("media.devices.insecure.enabled", false);
// -------------------------------------
// Pref : Disable verbosity of the internal logger
user_pref("remote.log.level", ""); // [DESKTOP]
// -------------------------------------
// Pref : Disable security bypass buttons
// Prevent the user from bypassing security in certain cases.
// "security.certerror.hideAddException" prevents adding an exception when an invalid certificate is shown.
// "browser.safebrowsing.allowOverride" prevents selecting "ignore the risk" and visiting a harmful site anyway.
user_pref("browser.safebrowsing.allowOverride", false); // [DESKTOP]
user_pref("security.certerror.hideAddException", true); // [DESKTOP]
// -------------------------------------
// Pref : Disable safe mode
// In case of a crash, we don't want to prompt for a safe-mode browser that has extensions disabled.
// https://support.mozilla.org/en-US/questions/951221#answer-410562
user_pref("toolkit.startup.max_resumed_crashes", -1); // [DESKTOP]
// -------------------------------------
// Pref : Force Encrypted Server Name Indication (eSNI) for TLS 1.3 if TRR/DoH is enabled
// [NOTE] I don't encourage DoH (but it is a useful and valid mechanism for those who need it)
// https://wiki.mozilla.org/Trusted_Recursive_Resolver#ESNI
// https://en.wikipedia.org/wiki/Server_Name_Indication#Security_implications_(ESNI)
user_pref("network.security.esni.enabled", true);
// -------------------------------------
// Pref : Disable ping to Mozilla for Man-in-the-Middle detection
// https://blog.torproject.org/new-release-tor-browser-901
user_pref("security.certerrors.mitm.priming.enabled", false); // [DESKTOP]
user_pref("security.certerrors.mitm.priming.endpoint", ""); // [DESKTOP]
user_pref("security.pki.mitm_canary_issuer", "");
user_pref("security.pki.mitm_canary_issuer.enabled", false);
user_pref("security.pki.mitm_detected", false);
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : Block Implicit Outbound
// >>>>>>>>>>>>>>>>>>>>
// Pref : Disable prefetching of <link rel="next"> URLs
// Link prefetching is when a webpage hints to the browser that certain pages are likely to be visited, so the browser downloads them immediately so they can be displayed immediately when the user requests it.
// https://developer.mozilla.org/en-US/docs/Web/HTTP/Link_prefetching_FAQ#Is_there_a_preference_to_disable_link_prefetching.3F
user_pref("network.prefetch-next", false);
// -------------------------------------
// Pref : Disable DNS prefetching
// https://developer.mozilla.org/en-US/docs/Web/HTTP/Controlling_DNS_prefetching
user_pref("network.dns.disablePrefetch", true);
user_pref("network.dns.disablePrefetchFromHTTPS", true); // [DEFAULT: true]
// -------------------------------------
// Pref : Disable pinging URIs specified in HTML <a> ping= attributes
user_pref("browser.send_pings", false);
// -------------------------------------
// Pref : When browser pings are enabled, only allow pinging the same host as the origin page
user_pref("browser.send_pings.require_same_host", true); // defense-in-depth
// -------------------------------------
// Pref : Disable speculative pre-connections
// https://support.mozilla.org/en-US/kb/how-stop-firefox-making-automatic-connections#w_speculative-pre-connections
// https://bugzilla.mozilla.org/show_bug.cgi?id=814169
user_pref("network.http.speculative-parallel-limit", 0);
// -------------------------------------
// Pref : Disable predictor / prefetching
// Network predicator load pages before they are opened with mose hover for example
user_pref("network.predictor.enabled", false);
user_pref("network.predictor.enable-prefetch", false);
user_pref("network.predictor.enable-hover-on-ssl", false);
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : HTTP* / TCP/IP / DNS / PROXY / SOCKS etc.
// >>>>>>>>>>>>>>>>>>>>
// Pref : Disable IPv6
// * IPv6 can be abused, especially with MAC addresses, and they do not play nice with VPNs. That's even assuming your ISP and/or router and/or website can handle it. Sites will fall back to IPv4
// [STATS] Firefox telemetry (June 2020) shows only 5% of all connections are IPv6
// [NOTE] This is just an application level fallback. Disabling IPv6 is best done at an OS/network level, and/or configured properly in VPN setups. If you are not masking your IP, then this won't make much difference. If you are masking your IP, then it can only help.
// [TEST] https://ipleak.org/
user_pref("network.dns.disableIPv6", true);
// -------------------------------------
// Pref : Disable HTTP2 (which was based on SPDY which is now deprecated)
// HTTP2 raises concerns with "multiplexing" and "server push", does nothing to enhance privacy, and in fact opens up a number of server-side fingerprinting opportunities.
// [SETUP-PERF] Relax this if you have FPI enabled and you understand the consequences. FPI isolates these, but it was designed with the Tor protocol in mind, and the Tor Browser has extra protection, including enhanced sanitizing per Identity.
// https://http2.github.io/faq/
// https://blog.scottlogic.com/2014/11/07/http-2-a-quick-look.html
// https://queue.acm.org/detail.cfm?id=2716278
// https://github.com/ghacksuserjs/ghacks-user.js/issues/107
// user_pref("network.http.spdy.enabled", false);
// user_pref("network.http.spdy.enabled.deps", false);
// user_pref("network.http.spdy.enabled.http2", false);
// user_pref("network.http.spdy.websockets", false);
// -------------------------------------
// Pref : Enforce the proxy server to do any DNS lookups when using SOCKS
// e.g. in Tor, this stops your local DNS server from knowing your Tor destination as a remote Tor node will handle the DNS request
// https://trac.torproject.org/projects/tor/wiki/doc/TorifyHOWTO/WebBrowsers
user_pref("network.proxy.socks_remote_dns", true);
// -------------------------------------
// Pref : Remove paths when sending URLs to PAC scripts
// https://bugzilla.mozilla.org/1255474
user_pref("network.proxy.autoconfig_url.include_path", false); // [DEFAULT: false]
// -------------------------------------
// Pref : Disable (or setup) DNS-over-HTTPS (DoH)
// TRR = Trusted Recursive Resolver
// 0=off by default, 1=race, 2=TRR first, 3=TRR only, 4=race for stats, but always use native result, 5=explicitly off
// [WARNING] DoH bypasses hosts and gives info to yet another party (e.g. Cloudflare)
// [BUG] This seem to disable socks_remote_dns ?! need to check with wireshark 
// If true, just settings urls to null should be enough to disable without impacting socks_remote_dns.
// https://www.ghacks.net/2018/04/02/configure-dns-over-https-in-firefox/
// https://hacks.mozilla.org/2018/05/a-cartoon-intro-to-dns-over-https/
user_pref("network.trr.mode", 0);
user_pref("network.trr.bootstrapAddress", "");
user_pref("network.trr.uri", "");
user_pref("network.trr.resolvers", "[]");
// -------------------------------------
// Pref : Enable Subresource Integrity
// https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity
// https://wiki.mozilla.org/Security/Subresource_Integrity
user_pref("security.sri.enable", true); // [DEFAULT: true]
// -------------------------------------
// Pref : Disable using UNC (Uniform Naming Convention) paths
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/26424
user_pref("network.file.disable_unc_paths", true); // [HIDDEN PREF] // [DESKTOP]
// -------------------------------------
// Pref : Disable HTTP Alternative Services
// https://www.ghacks.net/2015/08/18/a-comprehensive-list-of-firefox-privacy-and-security-settings/#comment-3970881
// https://www.mnot.net/blog/2016/03/09/alt-svc
user_pref("network.http.altsvc.enabled", false); // [DESKTOP]
user_pref("network.http.altsvc.oe", false); // [DESKTOP]
// -------------------------------------
// Pref : Disallow NTLMv1
// https://bugzilla.mozilla.org/show_bug.cgi?id=828183
user_pref("network.negotiate-auth.allow-insecure-ntlm-v1", false); // [DESKTOP]
// It is still allowed through HTTPS. uncomment the following to disable it completely.
// user_pref("network.negotiate-auth.allow-insecure-ntlm-v1-https", false); // [DESKTOP]
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : HTTPS (SSL/TLS / OCSP / Certs / HPKP / Ciphers)
// >>>>>>>>>>>>>>>>>>>>
// Pref : Enable HTTPS-only-mode
// * [WARNING] This is experimental, see [1] and you can't set exceptions if FPI is enabled, see [2]
// https://www.ghacks.net/2020/03/24/firefox-76-gets-optional-https-only-mode/
// * [1] https://bugzilla.mozilla.org/1613063 [META]
// * [2] https://bugzilla.mozilla.org/1647829 ***/
// user_pref("dom.security.https_only_mode", true);
// user_pref("dom.security.https_only_mode_pbm", true); // [FF80+]
// user_pref("dom.security.https_only_mode.upgrade_local", true);
// -------------------------------------
// Pref : Require safe negotiation
// Blocks connections to servers that don't support RFC 5746 as they're potentially vulnerable to a MiTM attack. A server *without* RFC 5746 can be safe from the attack if it disables renegotiations but the problem is that the browser can't know that.
// Setting this pref to true is the only way for the browser to ensure there will be no unsafe renegotiations on the channel between the browser and the server.
// https://wiki.mozilla.org/Security:Renegotiation
// https://tools.ietf.org/html/rfc5746
// https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3555
user_pref("security.ssl.require_safe_negotiation", true);
// -------------------------------------
// Pref : Enforce TLS 1.0 and 1.1 downgrades as session only
user_pref("security.tls.version.enable-deprecated", false);
// -------------------------------------
// Pref: Control TLS versions with min and max
// 1=TLS 1.0, 2=TLS 1.1, 3=TLS 1.2, 4=TLS 1.3
// [STATS] Firefox telemetry (June 2020) shows only 0.16% of SSL handshakes use 1.0 or 1.1
// [WARNING] Leave these at default, otherwise you alter your TLS fingerprint.
// https://www.ssllabs.com/ssl-pulse/ ***/
// user_pref("security.tls.version.min", 3); // [DEFAULT: 3]
// user_pref("security.tls.version.max", 4);
// -------------------------------------
// Pref : Disable SSL Error Reporting
// https://firefox-source-docs.mozilla.org/browser/base/sslerrorreport/preferences.html
user_pref("security.ssl.errorReporting.enabled", false);
user_pref("security.ssl.errorReporting.automatic", false);
user_pref("security.ssl.errorReporting.url", "");
// -------------------------------------
// Pref : Disable SSL session tracking
// SSL Session IDs are unique, last up to 24hrs in Firefox, and can be used for tracking
// https://tools.ietf.org/html/rfc5077
// https://bugzilla.mozilla.org/967977
// https://arxiv.org/abs/1810.07304
user_pref("security.ssl.disable_session_identifiers", true); // [DEFAULT: true] // [HIDDEN PREF]
// -------------------------------------
// Pref : Disable TLS1.3 0-RTT (round-trip time)
// https://github.com/tlswg/tls13-spec/issues/1001
// https://blog.cloudflare.com/tls-1-3-overview-and-q-and-a/
user_pref("security.tls.enable_0rtt_data", false);
// -------------------------------------
// Pref : Require a valid OCSP response for OCSP enabled certificates
// https://groups.google.com/forum/#!topic/mozilla.dev.security/n1G-N2-HTVA
// Disabling this will make OCSP bypassable by MitM attacks suppressing OCSP responses
// [NOTE] `security.OCSP.require` will make the connection fail when the OCSP responder is unavailable
// [NOTE] `security.OCSP.require` is known to break browsing on some [captive portals](https://en.wikipedia.org/wiki/Captive_portal)
user_pref("security.OCSP.require", true);
// -------------------------------------
// Pref : Enable OSCP (Online Certificate Status Protocol)
// https://en.wikipedia.org/wiki/Online_Certificate_Status_Protocol
// https://www.imperialviolet.org/2014/04/19/revchecking.html
// https://www.maikel.pro/blog/current-state-certificate-revocation-crls-ocsp/
// https://wiki.mozilla.org/CA:RevocationPlan
// https://wiki.mozilla.org/CA:ImprovingRevocation
// https://wiki.mozilla.org/CA:OCSP-HardFail
// https://news.netcraft.com/archives/2014/04/24/certificate-revocation-why-browsers-remain-affected-by-heartbleed.html
// https://news.netcraft.com/archives/2013/04/16/certificate-revocation-and-the-performance-of-ocsp.html
// [NOTE] OCSP leaks your IP and domains you visit to the CA when OCSP Stapling is not available on visited host
// [NOTE] OCSP is vulnerable to replay attacks when nonce is not configured on the OCSP responder
// [NOTE] OCSP adds latency (performance)
// [NOTE] Short-lived certificates are not checked for revocation (security.pki.cert_short_lifetime_in_days, default:10)
user_pref("security.OCSP.enabled", 0);
// -------------------------------------
// Pref : Enable OCSP Stapling support
// Stapling have the site itself proof that his certificate is good through the CA so apparently nothing is leaked in this case.
// https://en.wikipedia.org/wiki/OCSP_stapling
// https://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox/
user_pref("security.ssl.enable_ocsp_stapling", true);
// -------------------------------------
// Pref : Disallow SHA-1
// 0=all SHA1 certs are allowed
// 1=all SHA1 certs are blocked
// 2=deprecated option that now maps to 1
// 3=only allowed for locally-added roots (e.g. anti-virus)
// 4=only allowed for locally-added roots or for certs in 2015 and earlier
// https://blog.mozilla.org/security/2016/10/18/phasing-out-sha-1-on-the-public-web/
// https://bugzilla.mozilla.org/show_bug.cgi?id=1302140
// https://shattered.io/
user_pref("security.pki.sha1_enforcement_level", 1);
// -------------------------------------
// Pref : Disable Windows 8.1's Microsoft Family Safety cert
// 0=disable detecting Family Safety mode and importing the root
// 1=only attempt to detect Family Safety mode (don't import the root)
// 2=detect Family Safety mode and import the root
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/21686
user_pref("security.family_safety.mode", 0);
// -------------------------------------
// Pref : Enfore Public Key Pinning
// https://en.wikipedia.org/wiki/HTTP_Public_Key_Pinning
// https://wiki.mozilla.org/SecurityEngineering/Public_Key_Pinning
// 2= strict (pinning is always enforced)
user_pref("security.cert_pinning.enforcement_level", 2);
// -------------------------------------
// Pref : enforce no insecure active content on https pages
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/16206
user_pref("security.mixed_content.block_active_content", true); // [DEFAULT: true]
// -------------------------------------
// Pref : Disable insecure passive content (such as images) on https pages
user_pref("security.mixed_content.upgrade_display_content", true);
user_pref("security.mixed_content.block_display_content", true);
// -------------------------------------
// Pref : Block unencrypted requests from Flash on encrypted pages to mitigate MitM attacks
// https://bugzilla.mozilla.org/1190623
user_pref("security.mixed_content.block_object_subrequest", true);
// -------------------------------------
// Pref : Disable 3DES (effective key size < 128)
// https://en.wikipedia.org/wiki/3des#Security
// https://en.wikipedia.org/wiki/Meet-in-the-middle_attack
// https://www-archive.mozilla.org/projects/security/pki/nss/ssl/fips-ssl-ciphersuites.html
// user_pref("security.ssl3.rsa_des_ede3_sha", false);
// -------------------------------------
// Pref: Disable the remaining non-modern cipher suites as of FF78 (in order of preferred by FF) ***/
// user_pref("security.ssl3.ecdhe_ecdsa_aes_256_sha", false);
// user_pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", false);
// user_pref("security.ssl3.ecdhe_rsa_aes_128_sha", false);
// user_pref("security.ssl3.ecdhe_rsa_aes_256_sha", false);
// user_pref("security.ssl3.rsa_aes_128_sha", false); // no PFS
// user_pref("security.ssl3.rsa_aes_256_sha", false); // no PFS
// -------------------------------------
// Pref : Disable SEED cipher
// https://en.wikipedia.org/wiki/SEED
user_pref("security.ssl3.rsa_seed_sha", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable null ciphers
user_pref("security.ssl3.rsa_null_sha", false); // [DESKTOP]
user_pref("security.ssl3.rsa_null_md5", false); // [DESKTOP]
user_pref("security.ssl3.ecdhe_rsa_null_sha", false); // [DESKTOP]
user_pref("security.ssl3.ecdhe_ecdsa_null_sha", false); // [DESKTOP]
user_pref("security.ssl3.ecdh_rsa_null_sha", false); // [DESKTOP]
user_pref("security.ssl3.ecdh_ecdsa_null_sha", false); // [DESKTOP]
// -------------------------------------
// Pref : Enable GCM ciphers (TLS 1.2 only)
// https://en.wikipedia.org/wiki/Galois/Counter_Mode
user_pref("security.ssl3.ecdhe_rsa_aes_128_gcm_sha256", true); // [DEFAULT: true]
user_pref("security.ssl3.ecdhe_ecdsa_aes_128_gcm_sha256", true); // [DEFAULT: true]
// -------------------------------------
// Pref : Enable ChaCha20 and Poly1305
// https://www.mozilla.org/en-US/firefox/47.0/releasenotes/
// https://tools.ietf.org/html/rfc7905
// https://bugzilla.mozilla.org/show_bug.cgi?id=917571
// https://bugzilla.mozilla.org/show_bug.cgi?id=1247860
// https://cr.yp.to/chacha.html
user_pref("security.ssl3.ecdhe_ecdsa_chacha20_poly1305_sha256", true);
user_pref("security.ssl3.ecdhe_rsa_chacha20_poly1305_sha256", true);
// -------------------------------------
// Pref : Ciphers with CBC & SHA-1 (disabled)
user_pref("security.ssl3.ecdhe_rsa_aes_256_sha", false); // [DEFAULT: true]
user_pref("security.ssl3.ecdhe_ecdsa_aes_256_sha", false); // [DEFAULT: true]
user_pref("security.ssl3.rsa_aes_128_sha", false); // [DEFAULT: true]
user_pref("security.ssl3.rsa_aes_256_sha", false); // [DEFAULT: true]
// -------------------------------------
// Pref : Disable ciphers with DSA (max 1024 bits)
user_pref("security.ssl3.dhe_dss_aes_128_sha", false); // [DESKTOP]
user_pref("security.ssl3.dhe_dss_aes_256_sha", false); // [DESKTOP]
user_pref("security.ssl3.dhe_dss_camellia_128_sha", false); // [DESKTOP]
user_pref("security.ssl3.dhe_dss_camellia_256_sha", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable ciphers susceptible to the logjam attack
// https://weakdh.org/
user_pref("security.ssl3.dhe_rsa_camellia_256_sha", false); // [DESKTOP]
user_pref("security.ssl3.dhe_rsa_aes_256_sha", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable ciphers with ECDH (non-ephemeral)
user_pref("security.ssl3.ecdh_rsa_aes_256_sha", false); // [DESKTOP]
user_pref("security.ssl3.ecdh_ecdsa_aes_256_sha", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable RC4
// https://developer.mozilla.org/en-US/Firefox/Releases/38#Security
// https://bugzilla.mozilla.org/show_bug.cgi?id=1138882
// https://rc4.io/
// https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2013-2566
user_pref("security.ssl3.ecdh_ecdsa_rc4_128_sha", false); // [DESKTOP]
user_pref("security.ssl3.ecdh_rsa_rc4_128_sha", false); // [DESKTOP]
user_pref("security.ssl3.ecdhe_ecdsa_rc4_128_sha", false); // [DESKTOP]
user_pref("security.ssl3.ecdhe_rsa_rc4_128_sha", false); // [DESKTOP]
user_pref("security.ssl3.rsa_rc4_128_md5", false); // [DESKTOP]
user_pref("security.ssl3.rsa_rc4_128_sha", false); // [DESKTOP]
// -------------------------------------
// Pref : Display warning on the padlock for "broken security"
// [BUG] Warning padlock not indicated for subresources on a secure page!
// [STATS] SSL Labs (June 2020) reports 98.8% of sites have secure renegotiation
// https://wiki.mozilla.org/Security:Renegotiation
// https://bugzilla.mozilla.org/1353705
// https://www.ssllabs.com/ssl-pulse/
user_pref("security.ssl.treat_unsafe_negotiation_as_broken", true);
// -------------------------------------
// Pref : Control "Add Security Exception" dialog on SSL warnings
// 0=do neither 1=pre-populate url 2=pre-populate url + pre-fetch cert (default)
// https://github.com/pyllyukko/user.js/issues/210
user_pref("browser.ssl_override_behavior", 1);
// -------------------------------------
// Pref : Display advanced information on Insecure Connection warning pages (only works when it's possible to add an exception), i.e. it doesn't work for HSTS discrepancies
// https://subdomain.preloaded-hsts.badssl.com/
// [TEST] https://expired.badssl.com/
user_pref("browser.xul.error_pages.expert_bad_cert", true);
// -------------------------------------
// Pref : Disable GIO as a potential proxy bypass vector
// Gvfs/GIO has a set of supported protocols like obex, network, archive, computer, dav, cdda, gphoto2, trash, etc. By default only smb and sftp protocols are accepted so far.
// https://bugzilla.mozilla.org/1433507
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/23044
// https://en.wikipedia.org/wiki/GVfs
// https://en.wikipedia.org/wiki/GIO_(software)
user_pref("network.gio.supported-protocols", ""); // [HIDDEN PREF]
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : User Settings
// >>>>>>>>>>>>>>>>>>>>
// Pref : Set behaviour on "+ Tab" button to display container menu on left click
// [NOTE] The menu is always shown on long press and right click each new tab
// user_pref("privacy.userContext.newTabContainerOnLeftClick.enabled", true); // [DESKTOP]
// -------------------------------------
// Pref : Enable Container Tabs setting in preferences
// https://bugzilla.mozilla.org/1279029 
user_pref("privacy.userContext.ui.enabled", true); // [DESKTOP]
// -------------------------------------
// Pref : Enable Container Tabs
user_pref("privacy.userContext.enabled", true); // [DESKTOP]
// -------------------------------------
// Pref : Enable a private container for thumbnail loads
user_pref("privacy.usercontext.about_newtab_segregation.enabled", true); // [DESKTOP]
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : Passwords
// >>>>>>>>>>>>>>>>>>>>
// Pref : Disable about:logins (Firefox Lockwise)
// https://lockwise.firefox.com/
// https://support.mozilla.org/en-US/kb/firefox-lockwise-managing-account-data
user_pref("signon.management.page.breach-alerts.enabled", false); // [DESKTOP]
user_pref("signon.management.page.breachAlertUrl", ""); // [DESKTOP]
user_pref("signon.management.page.hideMobileFooter", true); // [DESKTOP]
user_pref("signon.management.page.mobileAndroidURL", ""); // [DESKTOP]
user_pref("signon.management.page.mobileAppleURL", ""); // [DESKTOP]
user_pref("signon.management.page.showPasswordSyncNotification", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable autofilling saved passwords on HTTP pages and show warning
// https://bugzilla.mozilla.org/buglist.cgi?bug_id=1217152,1319119
user_pref("signon.autofillForms.http", false);
user_pref("security.insecure_field_warning.contextual.enabled", true);
// -------------------------------------
// Pref : Disable password manager
// [NOTE] This does not clear any passwords already saved
user_pref("signon.rememberSignons", false);
user_pref("signon.rememberSignons.visibilityToggle", false);
user_pref("signon.schemeUpgrades", false);
user_pref("signon.showAutoCompleteFooter", false);
user_pref("signon.autologin.proxy", false);
user_pref("signon.privateBrowsingCapture.enabled", false);
user_pref("signon.debug", false);
// -------------------------------------
// Pref : Disable Firefox import password from signons.sqlite file
// https://support.mozilla.org/en-US/questions/1020818
user_pref("signon.importedFromSqlite", false);
user_pref("signon.recipes.path", "");
// -------------------------------------
// Pref : Set how often Firefox should ask for the master password
// 0=the first time (default), 1=every time it's needed, 2=every n minutes
user_pref("security.ask_for_password", 2);
// -------------------------------------
// Pref : Set how often in minutes Firefox should ask for the master password
user_pref("security.password_lifetime", 1); // [DEFAULT: 30]
// -------------------------------------
// Pref : Disable auto-filling username & password form fields
// Can leak in cross-site forms and be spoofed
// NOTE] Username & password is still available when you enter the field
user_pref("signon.autofillForms", false);
user_pref("signon.autofillForms.autocompleteOff", true);
user_pref("signon.showAutoCompleteOrigins", false);
// -------------------------------------
// Pref : Disable websites autocomplete
// Don't let sites dictate use of saved logins and passwords. 
user_pref("signon.storeWhenAutocompleteOff", false);
// -------------------------------------
// Pref : Disable formless login capture
// https://bugzilla.mozilla.org/show_bug.cgi?id=1166947
user_pref("signon.formlessCapture.enabled", false);
// -------------------------------------
// Pref : Limit (or disable) HTTP authentication credentials dialogs triggered by  sub-resources
// Hardens against potential credentials phishing
// 0=don't allow sub-resources to open HTTP authentication credentials dialogs
// 1=don't allow cross-origin sub-resources to open HTTP authentication credentials dialogs
// 2=allow sub-resources to open HTTP authentication credentials dialogs (default)   ***/
user_pref("network.auth.subresource-http-auth-allow", 1);
// -------------------------------------
// Pref : Prevent cross-origin images from triggering an HTTP-Authentication prompt
// https://bugzilla.mozilla.org/1357835
user_pref("network.auth.subresource-img-cross-origin-http-auth-allow", false); // [DEPRECATED] // [DESKTOP]
// -------------------------------------
// Pref : Disable Firefox built-in password generator
// https://wiki.mozilla.org/Toolkit:Password_Manager/Password_Generation
// [NOTE]  Best still create passwords with random characters and numbers in sequence by yourself
user_pref("signon.generation.available", false);
user_pref("signon.generation.enabled", false);
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : Window Meddling & Leaks / Popups
// >>>>>>>>>>>>>>>>>>>>
// -------------------------------------
// Pref : Prevent scripts from moving and resizing open windows
user_pref("dom.disable_window_move_resize", true); // [DEFAULT: true]
// -------------------------------------
// Pref : Open links targeting new windows in a new tab instead
// This stops malicious window sizes and some screen resolution leaks.
// You can still right-click a link and open in a new window.
// [TEST] https://people.torproject.org/~gk/misc/entire_desktop.html
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/9881
user_pref("browser.link.open_newwindow", 3); // 1=most recent window or tab 2=new window, 3=new tab
user_pref("browser.link.open_newwindow.restriction", 0); // [DEFAULT: 0]
// -------------------------------------
// Pref : Disable Fullscreen API (requires user interaction) to prevent screen-resolution leaks
// [NOTE] You can still manually toggle the browser's fullscreen state, but this pref will disable embedded video fullscreen controls, e.g. youtube
// * [TEST] https://arkenfox.github.io/TZP/tzp.html#screen
// user_pref("full-screen-api.enabled", false);
// -------------------------------------
// Pref : Block popup windows
user_pref("dom.disable_open_during_load", true); // [DEFAULT: true]
user_pref("privacy.popups.showBrowserMessage", true); // [DEFAULT: true]
// -------------------------------------
// Pref : Set max popups from a single non-click event
// [NOTE] Non-click events should never spawn a popup?
user_pref("dom.popup_maximum", 0); // [DEFAULT: 20]
// -------------------------------------
// Pref : Limit events that can cause a popup
user_pref("dom.popup_allowed_events", "click dblclick"); // [DEFAULT: "change click dblclick auxclick mouseup pointerup notificationclick reset submit touchend"]
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : Cache / Session (Re)Store / Favicons
// >>>>>>>>>>>>>>>>>>>>
// [INTRO] ETAG and other cache tracking/fingerprinting techniques can be averted by disabling *BOTH* disk and memory cache. ETAGs can also be neutralized by modifying response headers. Another solution is to use a hardened configuration with Temporary Containers. Alternatively, you can *LIMIT* exposure by clearing cache on close. Or on a regular basis manually or with an extension.
// https://en.wikipedia.org/wiki/HTTP_ETag#Tracking_using_ETags
// https://robertheaton.com/2014/01/20/cookieless-user-tracking-for-douchebags/
// https://www.grepular.com/Preventing_Web_Tracking_via_the_Browser_Cache
// https://github.com/arkenfox/user.js/wiki/4.2.4-Header-Editor
// https://medium.com/@stoically/enhance-your-privacy-in-firefox-with-temporary-containers-33925cd6cd21
// -------------------------------------
// Pref : Disable disk cache
user_pref("browser.cache.disk.enable", false);
user_pref("browser.cache.disk.smart_size.enabled", false);
user_pref("browser.cache.disk.smart_size.first_run", false);
// -------------------------------------
// Pref : Disable memory cache
// Capacity: -1=determine dynamically (default), 0=none, n=memory capacity in kilobytes
user_pref("browser.cache.memory.enable", false);
// user_pref("browser.cache.memory.capacity", 0);
// -------------------------------------
// Pref : Disable permissions manager from writing to disk
// [NOTE] This means any permission changes are session only
// https://bugzilla.mozilla.org/967812
user_pref("permissions.memory_only", true); // [HIDDEN PREF]
// -------------------------------------
// Pref : Disable media cache from writing to disk in Private Browsing
// * [NOTE] MSE (Media Source Extensions) are already stored in-memory in PB
// * [SETUP-WEB] ESR78: playback might break on subsequent loading (1650281) ***/
user_pref("browser.privatebrowsing.forceMediaMemoryCache", true);
user_pref("media.memory_cache_max_size", 16384);
// -------------------------------------
// Pref : Disable fastback cache
// To improve performance when pressing back/forward Firefox stores visited pages so they don't have to be re-parsed. This is not the same as memory cache.
// 0=none, -1=auto (that's minus 1).
// [WARNING] Not recommended unless you know what you're doing
// user_pref("browser.sessionhistory.max_total_viewers", 0);
// -------------------------------------
// Pref : Exclude "Undo Closed Tabs" in Session Restore
user_pref("browser.sessionstore.max_tabs_undo", 0);
// -------------------------------------
// Pref : Disable storing extra session data
// Extra session data contains contents of forms, scrollbar positions, cookies and POST data
// Define on which sites to save extra session data:
// 0=everywhere, 1=unencrypted sites, 2=nowhere
user_pref("browser.sessionstore.privacy_level", 2);
// -------------------------------------
// Pref : Set the minimum interval between session save operations
// Increasing this can help on older machines and some websites, as well as reducing writes. Default is 15000 (15 secs). Try 30000 (30 secs), 60000 (1 min) etc.
// This can also affect entries in the "Recently Closed Tabs" feature: i.e. the longer the interval the more chance a quick tab open/close won't be captured.
// This longer interval *may* affect history but we cannot replicate any history not recorded
// https://bugzilla.mozilla.org/1304389
// user_pref("browser.sessionstore.interval", 30000);
// -------------------------------------
// Pref : Disable favicons in web notifications
user_pref("alerts.showFavicons", false);
// -------------------------------------
// Pref : Delete Search and Form History
user_pref("browser.formfill.expire_days", 0);
// -------------------------------------
// Pref : Disable favicons in shortcuts
// URL shortcuts use a cached randomly named .ico file which is stored in your profile/shortcutCache directory. The .ico remains after the shortcut is deleted.
// false=shortcuts use a generic Firefox icon
user_pref("browser.shell.shortcutFavicons", false); // [DESKTOP]
// -------------------------------------
// Pref : Display "insecure" icon and "Not Secure" text on HTTP sites
// user_pref("security.insecure_connection_icon.enabled", true); // [DESKTOP] [FF59+] [DEFAULT: true]
user_pref("security.insecure_connection_text.enabled", true); // [DESKTOP]
user_pref("security.insecure_connection_icon.pbmode.enabled", true); // [DESKTOP]
user_pref("security.insecure_connection_text.pbmode.enabled", true); // [DESKTOP]
// -------------------------------------
// Pref : Enable insecure password warnings (login forms in non-HTTPS pages)
// https://blog.mozilla.org/tanvi/2016/01/28/no-more-passwords-over-http-please/
// https://bugzilla.mozilla.org/show_bug.cgi?id=1319119
// https://bugzilla.mozilla.org/show_bug.cgi?id=1217156
user_pref("security.insecure_password.ui.enabled", true); // [DESKTOP]
// -------------------------------------
// Pref : Disable automatic Firefox start and session restore after reboot
// https://bugzilla.mozilla.org/603903
user_pref("toolkit.winRegisterApplicationRestart", false); // [WINDOWS] // [DESKTOP]
// -------------------------------------
// Pref : Disable "Restore Session", even after a crash
user_pref("browser.sessionstore.resume_from_crash", false);
user_pref("browser.sessionstore.resume_session_once", false); // [DESKTOP]
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : Geolocation / Language / Locale
// >>>>>>>>>>>>>>>>>>>>
// Pref : Disable geolocation
user_pref("geo.enabled", false);
// -------------------------------------
// Pref : Set preferred language for displaying web pages
user_pref("intl.accept_languages", "en-US, en");
// -------------------------------------
// Pref : Enforce US English locale regardless of the system locale
// [NOTE] May break some input methods e.g xim/ibus for CJK languages
// https://bugzilla.mozilla.org/867501
// https://bugzilla.mozilla.org/1629630
user_pref("javascript.use_us_english_locale", true); // [HIDDEN PREF]
// -------------------------------------
// Pref : Disable using the OS's geolocation service
user_pref("geo.provider.ms-windows-location", false); // [WINDOWS] // [DESKTOP]
user_pref("geo.provider.use_corelocation", false); // [MAC] // [DESKTOP]
user_pref("geo.provider.use_gpsd", false); // [LINUX] // [DESKTOP]
user_pref("geo.provider.network.url", "");
user_pref("browser.region.update.enabled", false);
user_pref("browser.region.log", false);
user_pref("browser.region.network.scan", false);
user_pref("browser.region.network.url", "");
// -------------------------------------
// Pref : Disable logging geolocation to the console
user_pref("geo.provider.network.logging.enabled", false); // [HIDDEN PREF] // [DESKTOP]
// -------------------------------------
// Pref : Enforce fallback text encoding to match en-US
// When the content or server doesn't declare a charset the browser will fallback to the "Current locale" based on your application language
// [TEST] https://hsivonen.com/test/moz/check-charset.htm
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/20025
user_pref("intl.charset.fallback.override", "windows-1252");
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : Fonts
// >>>>>>>>>>>>>>>>>>>>>>
// Pref : Disable websites choosing fonts (0=block, 1=allow)
// This can limit most (but not all) JS font enumeration which is a high entropy fingerprinting vector.
// [WARNING] **DO NOT USE**: in FF80+ RFP covers this. Moreover that's not supported anymore in newer versions.
// https://github.com/mozilla-mobile/fenix/issues/15604
// user_pref("browser.display.use_document_fonts", 0);
// -------------------------------------
// Pref : Set more legible default fonts
user_pref("font.name.serif.x-unicode", "Georgia");
user_pref("font.name.serif.x-western", "Georgia"); // [DEFAULT: Times New Roman]
user_pref("font.name.sans-serif.x-unicode", "Arial");
user_pref("font.name.sans-serif.x-western", "Arial"); // [DEFAULT: Arial]
user_pref("font.name.monospace.x-unicode", "Lucida Console");
user_pref("font.name.monospace.x-western", "Lucida Console"); // [DEFAULT: Courier New]
// -------------------------------------
// Pref : Disable icon fonts (glyphs) and local fallback rendering
// [NOTE] You can do this with uBlock Origin
// https://bugzilla.mozilla.org/789788
// https://gitlab.torproject.org/legacy/trac/-/issues/8455
// https://github.com/gorhill/uBlock/wiki/Per-site-switches#no-remote-fonts
// user_pref("gfx.downloadable_fonts.enabled", false);
// user_pref("gfx.downloadable_fonts.fallback_delay", -1);
// -------------------------------------
// Pref : Disable CSS Font Loading API
// [NOTE] Disabling fonts can uglify the web a fair bit.
user_pref("layout.css.font-loading-api.enabled", false);
// -------------------------------------
// Pref : Disable special underline handling for a few fonts which you will probably never use
// https://github.com/arkenfox/user.js/issues/744
// user_pref("font.blacklist.underline_offset", "");
// -------------------------------------
// Pref : Disable graphite
// [NOTE] Graphite has had many critical security issues in the past
// https://www.mozilla.org/security/advisories/mfsa2017-15/#CVE-2017-7778
// https://en.wikipedia.org/wiki/Graphite_(SIL)
user_pref("gfx.font_rendering.graphite.enabled", false);
// -------------------------------------
// Pref : Limit system font exposure to a whitelist [RESTART]
// If the whitelist is empty, then whitelisting is considered disabled and all fonts are allowed.
// [WARNING] Creating your own probably highly-unique whitelist will raise your entropy.
// https://bugzilla.mozilla.org/1121643
// user_pref("font.system.whitelist", "");
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : Plugins
// >>>>>>>>>>>>>>>>>>>>
// Pref : Disable plugins
user_pref("plugin.disable", true); // [DEFAULT: true]
user_pref("dom.ipc.plugins.enabled", false); // [DEFAULT: false]
user_pref("plugins.crash.supportUrl", ""); // [DESKTOP]
// -------------------------------------
// Pref : Set default plugin state (i.e. new plugins on discovery) to never activate
// 0=disabled, 1=ask to activate, 2=active - you can override individual plugins
user_pref("plugin.default.state", 0);
// -------------------------------------
// Pref : Disable scanning for plugins
user_pref("plugin.scan.plid.all", false); // [WINDOWS] // [DESKTOP]
// -------------------------------------
// Pref : Disable all GMP (Gecko Media Plugins)
user_pref("media.gmp-provider.enabled", false);
user_pref("media.gmp-manager.certs.1.issuerName", "");
user_pref("media.gmp-manager.certs.1.commonName", "");
user_pref("media.gmp-manager.certs.2.issuerName", "");
user_pref("media.gmp-manager.certs.2.commonName", "");
user_pref("media.gmp-manager.url", "");
user_pref("media.gmp-manager.url.override", "");
user_pref("media.gmp-manager.updateEnabled", false); // [DESKTOP]
user_pref("media.gmp.trial-create.enabled", false); // [WINDOWS] // [DESKTOP]
// -------------------------------------
// Pref : Disable all DRM content (EME: Encryption Media Extension)
// [NOTE] if you need CDM, e.g. Netflix, Amazon Prime, Hulu, whatever
// https://www.eff.org/deeplinks/2017/10/drms-dead-canary-how-we-just-lost-web-what-we-learned-it-and-what-we-need-do-next
user_pref("media.eme.enabled", false);
// -------------------------------------
// Pref : Disable the OpenH264 Video Codec by Cisco to "Never Activate".
// This is the bundled codec used for video chat in WebRTC.
user_pref("media.gmp-gmpopenh264.enabled", false);
user_pref("media.gmp-gmpopenh264.autoupdate", false); // [DESKTOP]
user_pref("media.gmp-gmpopenh264.visible", false);
// -------------------------------------
// Pref : Disable widevine CDM (Content Decryption Module)
// [NOTE] if you need CDM, e.g. Netflix, Amazon Prime, Hulu, whatever
user_pref("media.gmp-widevinecdm.enabled", false); // [DESKTOP]
user_pref("media.gmp-widevinecdm.visible", false); // [DESKTOP]
user_pref("media.mediadrm-widevinecdm.visible", false); // [DEFAULT: true]
user_pref("media.gmp-widevinecdm.autoupdate", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable Flash plugin
// 0=deactivated, 1=ask, 2=enabled
// [NOTE] You can still override individual sites via site permissions
// https://www.ghacks.net/2013/07/09/how-to-make-sure-that-a-firefox-plugin-never-activates-again/
user_pref("plugin.state.flash", 0); // [DESKTOP]
// -------------------------------------
// Pref : Disable Gnome Shell Integration NPAPI plugin
user_pref("plugin.state.libgnome-shell-browser-plugin",0); // [DESKTOP]
// -------------------------------------
// Pref : Enable Auto Notification of Outdated Plugins
// https://wiki.mozilla.org/Firefox3.6/Plugin_Update_Awareness_Security_Review
// https://hg.mozilla.org/mozilla-central/rev/304560
user_pref("plugins.update.notifyUser", true); // [DESKTOP]
// -------------------------------------
// Pref : Disable Shumway (Mozilla Flash renderer)
// https://developer.mozilla.org/en-US/docs/Mozilla/Projects/Shumway
user_pref("shumway.disabled", true); // [DESKTOP]
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : Blocklists / Safe Browsing / Tracking Protection
// >>>>>>>>>>>>>>>>>>>>
// Pref : Disable add-on and certificate blocklists (OneCRL) from Mozilla
// https://wiki.mozilla.org/Security/Tracking_protection
// https://wiki.mozilla.org/Services/TrackingProtection/Shavar_Server_-_Testing
// https://wiki.mozilla.org/Security/Safe_Browsing
// https://wiki.mozilla.org/Blocklisting
// https://blocked.cdn.mozilla.net/
// https://blog.mozilla.org/security/2015/03/03/revoking-intermediate-certificates-introducing-onecrl/
user_pref("services.blocklist.update_enabled", false); // [DESKTOP]
user_pref("services.blocklist.plugins.signer", "");
user_pref("services.blocklist.plugins.collection", "");
user_pref("services.blocklist.pinning.signer", "");
user_pref("services.blocklist.pinning.enabled", false);
user_pref("services.blocklist.pinning.collection", "");
user_pref("services.blocklist.pinning.bucket", ""); // [DESKTOP]
user_pref("services.blocklist.onecrl.signer", "");
user_pref("services.blocklist.onecrl.collection", "");
user_pref("services.blocklist.gfx.signer", "");
user_pref("services.blocklist.gfx.collection", "");
user_pref("services.blocklist.bucket", "");
user_pref("services.blocklist.addons.signer", ""); // [DESKTOP]
user_pref("services.blocklist.addons.collection", "");
user_pref("extensions.blocklist.lastModified", ""); // [DESKTOP]
user_pref("extensions.blocklist.itemURL", "");
user_pref("extensions.blocklist.enabled", false);
user_pref("extensions.blocklist.detailsURL", "");
user_pref("services.settings.security.onecrl.bucket", "");
user_pref("services.settings.security.onecrl.collection", "");
user_pref("services.settings.security.onecrl.signer", "");
user_pref("urlclassifier.blockedTable", "");
user_pref("urlclassifier.disallow_completions", "");
user_pref("urlclassifier.downloadAllowTable", "");
user_pref("urlclassifier.downloadBlockTable", "");
user_pref("urlclassifier.flashAllowExceptTable", "");
user_pref("urlclassifier.flashAllowTable", "");
user_pref("urlclassifier.flashExceptTable", "");
user_pref("urlclassifier.flashSubDocExceptTable", "");
user_pref("urlclassifier.flashSubDocTable", "");
user_pref("urlclassifier.flashTable", "");
user_pref("urlclassifier.malwareTable", "");
user_pref("urlclassifier.passwordAllowTable", "");
user_pref("urlclassifier.phishTable", "");
user_pref("urlclassifier.trackingAnnotationSkipURLs", ""); // [DESKTOP]
user_pref("urlclassifier.trackingAnnotationTable", ""); // [DESKTOP]
user_pref("urlclassifier.trackingAnnotationWhitelistTable", "");
user_pref("urlclassifier.trackingTable", "");
user_pref("urlclassifier.trackingWhitelistTable", "");
// -------------------------------------
// Pref : Opt-out of add-on metadata updates
// https://blog.mozilla.org/addons/how-to-opt-out-of-add-on-metadata-updates/
user_pref("extensions.getAddons.cache.enabled", false);
// -------------------------------------
// Pref : Disable Google Safe Browsing (Block dangerous and deceptive contents)
user_pref("browser.safebrowsing.enabled", false); // [DESKTOP]
user_pref("browser.safebrowsing.blockedURIs.enabled", false);
user_pref("browser.safebrowsing.debug", false);
user_pref("browser.safebrowsing.downloads.enabled", false); // [DEFAULT: false]
user_pref("browser.safebrowsing.downloads.remote.block_dangerous", false);
user_pref("browser.safebrowsing.downloads.remote.block_dangerous_host", false);
user_pref("browser.safebrowsing.downloads.remote.block_potentially_unwanted", false);
user_pref("browser.safebrowsing.downloads.remote.block_uncommon", false);
user_pref("browser.safebrowsing.downloads.remote.enabled", false);
user_pref("browser.safebrowsing.downloads.remote.url", "");
user_pref("browser.safebrowsing.id", "");
user_pref("browser.safebrowsing.malware.enabled", false);
user_pref("browser.safebrowsing.passwords.enabled", false);
user_pref("browser.safebrowsing.phishing.enabled", false);
user_pref("browser.safebrowsing.provider.google.advisoryURL", "");
user_pref("browser.safebrowsing.provider.google.pver", "");
user_pref("browser.safebrowsing.provider.google.advisoryName", "");
user_pref("browser.safebrowsing.provider.google.gethashURL", "");
user_pref("browser.safebrowsing.provider.google.lastupdatetime", ""); // [DESKTOP]
user_pref("browser.safebrowsing.provider.google.lists", "");
user_pref("browser.safebrowsing.provider.google.nextupdatetime", ""); // [DESKTOP]
user_pref("browser.safebrowsing.provider.google.reportMalwareMistakeURL", "");
user_pref("browser.safebrowsing.provider.google.reportPhishMistakeURL", "");
user_pref("browser.safebrowsing.provider.google.reportURL", "");
user_pref("browser.safebrowsing.provider.google.updateURL", "");
user_pref("browser.safebrowsing.provider.google4.advisoryName", "");
user_pref("browser.safebrowsing.provider.google4.advisoryURL", "");
user_pref("browser.safebrowsing.provider.google4.gethashURL", "");
user_pref("browser.safebrowsing.provider.google4.lastupdatetime", ""); // [DESKTOP]
user_pref("browser.safebrowsing.provider.google4.lists", "");
user_pref("browser.safebrowsing.provider.google4.nextupdatetime", ""); // [DESKTOP]
user_pref("browser.safebrowsing.provider.google4.reportMalwareMistakeURL", "");
user_pref("browser.safebrowsing.provider.google4.reportPhishMistakeURL", "");
user_pref("browser.safebrowsing.provider.google4.reportURL", "");
user_pref("browser.safebrowsing.provider.google4.updateURL", "");
user_pref("browser.safebrowsing.provider.google4.dataSharing.enabled", false);
user_pref("browser.safebrowsing.provider.google4.dataSharingURL", "");
user_pref("browser.safebrowsing.provider.google4.pver", "");
user_pref("browser.safebrowsing.provider.mozilla.gethashURL", "");
user_pref("browser.safebrowsing.provider.mozilla.lastupdatetime", ""); // [DESKTOP]
user_pref("browser.safebrowsing.provider.mozilla.lists", "");
user_pref("browser.safebrowsing.provider.mozilla.lists.base", "");
user_pref("browser.safebrowsing.provider.mozilla.lists.content", "");
user_pref("browser.safebrowsing.provider.mozilla.nextupdatetime", "");
user_pref("browser.safebrowsing.provider.mozilla.pver", "");
user_pref("browser.safebrowsing.provider.mozilla.updateURL", "");
user_pref("browser.safebrowsing.reportPhishURL", "");
user_pref("browser.safebrowsing.features.cryptomining.update", false);
user_pref("browser.safebrowsing.features.fingerprinting.update", false);
user_pref("browser.safebrowsing.features.malware.update", false);
user_pref("browser.safebrowsing.features.pishing.update", false);
user_pref("browser.safebrowsing.features.trackingAnnotation.update", false);
user_pref("browser.safebrowsing.features.trackingProtection.update", false);
// -------------------------------------
// Pref : Disable passive Tracking Protection
// Passive TP annotates channels to lower the priority of network loads for resources on the tracking protection list.
// [NOTE] It has no effect if TP is enabled, but keep in mind that by default TP is only enabled in Private Windows
// This is included for people who want to completely disable Tracking Protection.
// https://bugzilla.mozilla.org/buglist.cgi?bug_id=1170190,1141814 
user_pref("privacy.trackingprotection.annotate_channels", false);
user_pref("privacy.trackingprotection.lower_network_priority", false);
// -------------------------------------
// Pref : Disable passive Tracking Protection in all windows
user_pref("privacy.trackingprotection.enabled", false);
user_pref("privacy.trackingprotection.pbmode.enabled", false);
// -------------------------------------
// Pref : Disable cryptomining trackingprotection
// [NOTE] uBlock is far superior and you can customize the lists as you wish
// https://m.wiki.mozilla.org/Security/Tracking_protection#Lists
// https://github.com/AdroitAdorKhan/EnergizedProtection
// https://github.com/theel0ja/firefox-recommendations/blob/master/README.md
// https://github.com/hoshsadiq/adblock-nocoin-list
user_pref("browser.contentblocking.cryptomining.preferences.ui.enabled", false); // [DESKTOP]
user_pref("privacy.trackingprotection.cryptomining.enabled", false);
user_pref("urlclassifier.features.cryptomining.blacklistTables", "");
user_pref("urlclassifier.features.cryptomining.whitelistTables", "");
user_pref("urlclassifier.features.cryptomining.annotate.whitelistTables", "");
user_pref("urlclassifier.features.cryptomining.annotate.blacklistTables", "");
// -------------------------------------
// Pref : Disable fingerprinting trackingprotection
// [NOTE] uBlock is far superior and you can customize the lists as you wish
// https://m.wiki.mozilla.org/Security/Tracking_protection#Lists
// https://github.com/AdroitAdorKhan/EnergizedProtection
// https://github.com/theel0ja/firefox-recommendations/blob/master/README.md
user_pref("browser.contentblocking.fingerprinting.preferences.ui.enabled", false); // [DESKTOP]
user_pref("privacy.trackingprotection.fingerprinting.enabled", false);
user_pref("urlclassifier.features.fingerprinting.blacklistTables", "");
user_pref("urlclassifier.features.fingerprinting.whitelistTables", "");
user_pref("urlclassifier.features.fingerprinting.annotate.whitelistTables", "");
user_pref("urlclassifier.features.fingerprinting.annotate.blacklistTables", "");
// -------------------------------------
// Pref : Disable social trackingprotection
// [NOTE] uBlock is far superior and you can customize the lists as you wish
// https://m.wiki.mozilla.org/Security/Tracking_protection#Lists
// https://github.com/AdroitAdorKhan/EnergizedProtection
// https://github.com/theel0ja/firefox-recommendations/blob/master/README.md
user_pref("privacy.trackingprotection.socialtracking.enabled", false);
user_pref("urlclassifier.features.socialtracking.blacklistTables", "");
user_pref("urlclassifier.features.socialtracking.whitelistTables", "");
user_pref("urlclassifier.features.socialtracking.annotate.whitelistTables", "");
user_pref("urlclassifier.features.socialtracking.annotate.blacklistTables", "");
user_pref("privacy.socialtracking.block_cookies.enabled", false); // [DESKTOP]
user_pref("privacy.socialtracking.notification.enabled", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable PingCentre telemetry (used in several System Add-ons)
// Currently blocked by 'datareporting.healthreport.uploadEnabled'
user_pref("browser.ping-centre.telemetry", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable all the trackingprotection blocked elements by default
user_pref("browser.contentblocking.features.strict", ""); // [DESKTOP]
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : System add-ons / Experiments
// >>>>>>>>>>>>>>>>>>>>
// Pref : Sanitize System Add-on updates URL
// https://firefox-source-docs.mozilla.org/toolkit/mozapps/extensions/addon-manager/SystemAddons.html
// https://blog.mozilla.org/data/2018/08/20/effectively-measuring-search-in-firefox/
// https://github.com/pyllyukko/user.js/issues/419
// https://dxr.mozilla.org/mozilla-central/source/toolkit/mozapps/extensions/AddonManager.jsm#1248-1257
// [NOTE] Disabling system add-on updates prevents Mozilla from "hotfixing" your browser to patch critical problems (one possible use case from the documentation)
// user_pref("extensions.systemAddon.update.enabled", false);
user_pref("extensions.systemAddon.update.url", "https://aus5.mozilla.org/update/3/SystemAddons/%VERSION%/%BUILD_ID%/%BUILD_TARGET%/en-US/%CHANNEL%/%OS_VERSION%/%DISTRIBUTION%/%DISTRIBUTION_VERSION%/update.xml"); // [URL SANITIZED]
// -------------------------------------
// Pref : Disable Normandy/Shield
// Shield is an telemetry system (including Heartbeat) that can also push and test "recipes"
// https://wiki.mozilla.org/Firefox/Shield
// https://github.com/mozilla/normandy
user_pref("app.normandy.enabled", false); // [DESKTOP]
user_pref("app.normandy.api_url", ""); // [DESKTOP]
user_pref("app.normandy.first_run", false); // [DESKTOP]
user_pref("app.normandy.shieldLearnMoreUrl", ""); // [DESKTOP]
user_pref("app.normandy.user_id", ""); // [DESKTOP]
user_pref("features.normandy-remote-settings.enabled", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable Form Autofill
// [NOTE] Stored data is NOT secure (uses a JSON file)
// [NOTE] Heuristics controls Form Autofill on forms without @autocomplete attributes
// https://wiki.mozilla.org/Firefox/Features/Form_Autofill
// https://www.ghacks.net/2017/05/24/firefoxs-new-form-autofill-is-awesome/
user_pref("extensions.formautofill.addresses.enabled", false); // [DESKTOP]
user_pref("extensions.formautofill.available", "off"); // [DESKTOP]
user_pref("extensions.formautofill.creditCards.enabled", false); // [DESKTOP]
user_pref("extensions.formautofill.heuristics.enabled", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable ExperimentManager and relative API
// https://bugzilla.mozilla.org/show_bug.cgi?id=1620021
user_pref("messaging-system.rsexperimentloader.enabled", false); // [DESKTOP]
user_pref("messaging-system.log", ""); // [DESKTOP]
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : Persistent Storage
// >>>>>>>>>>>>>>>>>>>>
// Pref : Delete cookies and site data on close
// 0=keep until they expire (default),1=Prompt for each cookie, 2=keep until you close Firefox, 3=Accept for N days
// https://addons.mozilla.org/en-US/firefox/addon/cookie-autodelete/
user_pref("network.cookie.lifetimePolicy", 2);
// -------------------------------------
// Pref : Sets the number of days that the lifetime of cookies should be limited to
// [NOTE] Only use if network.cookie.lifetimePolicy is set to 3
// user_pref("network.cookie.lifetime.days", 1); // [DEFAULT: 90]
// -------------------------------------
// Pref : Disable 3rd-party cookies and site-data
// 0=(Allow) cookies and site data, 1=(Block) All third-party cookies, 2=(Block) All cookies, 3=(Block) Cookies from unvisited websites, 4=(Block) Cross-site and social media trackers (default)
// [NOTE] Can breaks payment gateways
user_pref("network.cookie.cookieBehavior", 1);
// -------------------------------------
// Pref : Disable compatibility heuristics to 3rd-party cookie blocking
// https://bugzilla.mozilla.org/show_bug.cgi?id=1625568
user_pref("network.cookie.rejectForeignWithExceptions.enabled", false);
// -------------------------------------
// Pref : Set third-party cookies(if enabled) to session-only
// [NOTE] .sessionOnly overrides .nonsecureSessionOnly except when .sessionOnly=false and .nonsecureSessionOnly=true. This allows you to keep HTTPS cookies, but session-only HTTP ones
// https://feeding.cloud.geek.nz/posts/tweaking-cookies-for-privacy-in-firefox/
user_pref("network.cookie.thirdparty.sessionOnly", true);
user_pref("network.cookie.thirdparty.nonsecureSessionOnly", true);
// -------------------------------------
// Pref : Disable HTTP sites setting cookies with the "secure" directive
// https://developer.mozilla.org/Firefox/Releases/52#HTTP
user_pref("network.cookie.leave-secure-alone", true); // [DEFAULT: true]
// -------------------------------------
// Pref : Enable support for same-site cookies
// https://bugzilla.mozilla.org/795346
// https://blog.mozilla.org/security/2018/04/24/same-site-cookies-in-firefox-60/
// https://www.sjoerdlangkemper.nl/2016/04/14/preventing-csrf-with-samesite-cookie-attribute/
user_pref("network.cookie.same-site.enabled", true); // [DEFAULT: true]
// -------------------------------------
// Pref : Disable DOM (Document Object Model) Storage
// [WARNING] This will break a LOT of sites' functionality AND extensions!
// You are better off using an extension for more granular control
// user_pref("dom.storage.enabled", false);
// -------------------------------------
// Pref : Do not download URLs for the offline cache
user_pref("browser.cache.offline.storage.enable", false);
user_pref("browser.cache.offline.enable", false);
user_pref("browser.cache.offline.capacity", 0);
// -------------------------------------
// Pref : Disable service workers cache and cache storage
// [NOTE] Service worker cache are cleared on exit
// https://w3c.github.io/ServiceWorker/#privacy
// user_pref("dom.caches.enabled", false);
// -------------------------------------
// Pref : Disable Storage API
// The API gives sites the ability to find out how much space they can use, how much they are already using, and even control whether or not they need to be alerted before the user agent disposes of site data in order to make room for other things.
// https://developer.mozilla.org/docs/Web/API/StorageManager
// https://developer.mozilla.org/docs/Web/API/Storage_API
// https://blog.mozilla.org/l10n/2017/03/07/firefox-l10n-report-aurora-54/
user_pref("dom.storageManager.enabled", false);
// -------------------------------------
// Pref : Disable Storage Access API
// https://developer.mozilla.org/en-US/docs/Web/API/Storage_Access_API
user_pref("dom.storage_access.enabled", false);
// -------------------------------------
// Pref : Disable download history
user_pref("browser.download.manager.retention", 0); // [DESKTOP]
// -------------------------------------
// Pref : Enable Firefox to clear items on shutdown
user_pref("privacy.sanitize.sanitizeOnShutdown", true); // [DESKTOP]
// -------------------------------------
// Pref : Set what items to clear when Firefox closes
// https://support.mozilla.org/en-US/kb/Clear%20Recent%20History#w_how-do-i-make-firefox-clear-my-history-automatically
// [NOTE] Installing user.js will remove your browsing history, caches and local storage.
// [NOTE] Installing user.js **will remove your saved passwords** (https://github.com/pyllyukko/user.js/issues/27)
// [NOTE] Clearing open windows on Firefox exit causes 2 windows to open when Firefox starts https://bugzilla.mozilla.org/show_bug.cgi?id=1334945
// [NOTE] If 'history' is true, downloads will also be cleared regardless of the value
user_pref("privacy.clearOnShutdown.cache", true); // [DESKTOP]
user_pref("privacy.clearOnShutdown.cookies", true); // [DESKTOP]
user_pref("privacy.clearOnShutdown.downloads", true); // [DESKTOP]
user_pref("privacy.clearOnShutdown.formdata", true); // [DESKTOP]
user_pref("privacy.clearOnShutdown.history", true); // [DESKTOP]
user_pref("privacy.clearOnShutdown.offlineApps", true); // [DESKTOP]
user_pref("privacy.clearOnShutdown.sessions", true); // [DESKTOP]
user_pref("privacy.clearOnShutdown.siteSettings", true); // [DESKTOP]
// user_pref("privacy.clearOnShutdown.openWindows", true); // [DESKTOP]
// -------------------------------------
// Pref : Reset default 'Time range to clear' for 'Clear Recent History'
// Firefox remembers your last choice. This will reset the value when you start Firefox.
// 0=everything, 1=last hour, 2=last two hours, 3=last four hours, 4=today, 5=last five minutes, 6=last twenty-four hours
// [NOTE] The values 5 + 6 are not listed in the dropdown, which will display a blank value if they are used, but they do work as advertised
user_pref("privacy.sanitize.timeSpan", 0); // [DESKTOP]
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : Headers / Referers
// >>>>>>>>>>>>>>>>>>>>
// Pref : Control when images/links send a referer
// 0=never, 1=send only when links are clicked, 2=for links and images (default)
user_pref("network.http.sendRefererHeader", 2);
// -------------------------------------
// Pref : Control the amount of information to send
// 0=send full URI (default), 1=scheme+host+port+path, 2=scheme+host+port 
user_pref("network.http.referer.trimmingPolicy", 2);
// -------------------------------------
// Pref : Control when to send a referer
// 0=always (default), 1=only if base domains match, 2=only if hosts match
user_pref("network.http.referer.XOriginPolicy", 2);
// -------------------------------------
// Pref : Control the amount of information to send
// 0=send full URI (default), 1=scheme+host+port+path, 2=scheme+host+port
user_pref("network.http.referer.XOriginTrimmingPolicy", 2);
// -------------------------------------
// Pref : Send a referer header with the target URI as the source
// https://bugzilla.mozilla.org/show_bug.cgi?id=822869
// https://github.com/pyllyukko/user.js/issues/227
// https://github.com/pyllyukko/user.js/issues/94
// [NOTE] Spoofing referers breaks functionality on websites relying on authentic referer headers
// [NOTE] Spoofing referers breaks visualisation of 3rd-party sites on the Lightbeam addon
// [NOTE] Spoofing referers disable CSRF protection on some login pages not implementing origin-header/cookie+token based CSRF protection
user_pref("network.http.referer.spoofSource", true); // [DEFAULT: false]
// -------------------------------------
// Pref : Set the default Referrer Policy
// 0=no-referer, 1=same-origin, 2=strict-origin-when-cross-origin, 3=no-referrer-when-downgrade
// [NOTE] This is only a default, it can be overridden by a site-controlled Referrer Policy
// https://www.w3.org/TR/referrer-policy/
// https://developer.mozilla.org/docs/Web/HTTP/Headers/Referrer-Policy
// https://blog.mozilla.org/security/2018/01/31/preventing-data-leaks-by-stripping-path-information-in-http-referrers/
user_pref("network.http.referer.defaultPolicy", 3); // [DEFAULT: 3]
user_pref("network.http.referer.defaultPolicy.pbmode", 2); // [DEFAULT: 2]
user_pref("network.http.referer.defaultPolicy.trackers", 3); // [DEFAULT: 3]
user_pref("network.http.referer.defaultPolicy.trackers.pbmode", 2); // [DEFAULT: 2]
// -------------------------------------
// Pref : Hide (not spoof) referrer when leaving a .onion domain
// [NOTE] Firefox cannot access .onion sites by default. We recommend you use the Tor Browser which is specifically designed for hidden services
// https://bugzilla.mozilla.org/1305144
user_pref("network.http.referer.hideOnionSource", true); // [DEFAULT: false]
// -------------------------------------
// Pref : Reject .onion hostnames before passing the to DNS
// https://bugzilla.mozilla.org/show_bug.cgi?id=1228457
user_pref("network.dns.blockDotOnion", true); // [DEFAULT: true]
// -------------------------------------
// Pref : Disable the DNT (Do Not Track) HTTP header
user_pref("privacy.donottrackheader.enabled", false); // [DEFAULT: true]
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : FPI (First Party Isolation)
// >>>>>>>>>>>>>>>>>>>>
// Pref : Enable FPI (First Party Isolation)
// [NOTE] May break cross-domain logins and site functionality until perfected
// https://bugzilla.mozilla.org/1260931 
user_pref("privacy.firstparty.isolate", true);
// -------------------------------------
// Pref : Enforce FPI restriction for window.opener [FF54+]
// [NOTE] Setting this to false may reduce the breakage in the previous pref
// FF65+ blocks postMessage with targetOrigin "*" if originAttributes don't match. But to reduce breakage it ignores the 1st-party domain (FPD) originAttribute.
// The 2nd pref removes that limitation and will only allow communication if FPDs also match.
// https://bugzilla.mozilla.org/1319773#c22
// https://bugzilla.mozilla.org/1492607
// https://developer.mozilla.org/en-US/docs/Web/API/Window/postMessage
user_pref("privacy.firstparty.isolate.restrict_opener_access", true);
user_pref("privacy.firstparty.isolate.block_post_message", true);
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : RFP (Resist Fingerprinting) / RFP Alternatives (USER AGENT SPOOFING)
// >>>>>>>>>>>>>>>>>>>>
// Pref : Enable hardening against various fingerprinting vectors (Tor Uplift project)
// https://wiki.mozilla.org/Security/Tor_Uplift/Tracking
// https://bugzilla.mozilla.org/show_bug.cgi?id=1333933
user_pref("privacy.resistFingerprinting", true); // [DEFAULT: false]
// -------------------------------------
// Pref : Disable mozAddonManager Web API
// [NOTE] As a side-effect allowed extensions to work on AMO. You also need to sanitize or clear extensions.webextensions.restrictedDomains to keep that side-effect
// https://bugzilla.mozilla.org/buglist.cgi?bug_id=1384330,1406795,1415644,1453988
user_pref("privacy.resistFingerprinting.block_mozAddonManager", true); // [HIDDEN PREF] // [DESKTOP]
// -------------------------------------
// Pref : Enable RFP letterboxing
// Dynamically resizes the inner window by applying letterboxing, using dimensions which waste the least content area, If you use the dimension pref, then it will only apply those resolutions. The format is "width1xheight1, width2xheight2, ..." (e.g. "800x600, 1000x1000, 1600x900")
// [WARNING] The dimension pref is only meant for testing, and we recommend you DO NOT USE it
// https://bugzilla.mozilla.org/1407366
// https://hg.mozilla.org/mozilla-central/rev/6d2d7856e468#l2.32 ***/
// user_pref("privacy.resistFingerprinting.letterboxing", true); // [HIDDEN PREF] // [DESKTOP]
// user_pref("privacy.resistFingerprinting.letterboxing.dimensions", ""); // [HIDDEN PREF] // [DESKTOP]
// -------------------------------------
// Pref : Disable WebRTC, getUserMedia, screen sharing, audio capture, video capture
// https://wiki.mozilla.org/Media/getUserMedia
// https://blog.mozilla.org/futurereleases/2013/01/12/capture-local-camera-and-microphone-streams-with-getusermedia-now-enabled-in-firefox/
// https://developer.mozilla.org/en-US/docs/Web/API/Navigator
user_pref("media.navigator.enabled", false);
user_pref("media.navigator.video.enabled", false);
// -------------------------------------
// Pref : Spoof CPU Core
// [NOTE] *may* affect core performance, will affect content.
// Default settings seems to be the best
// https://bugzilla.mozilla.org/1008453
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/21675
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/22127
// https://html.spec.whatwg.org/multipage/workers.html#navigator.hardwareconcurrency
// user_pref("dom.maxHardwareConcurrency", 2);
// -------------------------------------
// Pref : Disable resource timing API
// https://www.w3.org/TR/resource-timing/#privacy-security
user_pref("dom.enable_resource_timing", false); // [DEFAULT: true]
// -------------------------------------
// Pref : Disable DOM timing API
// https://wiki.mozilla.org/Security/Reviews/Firefox/NavigationTimingAPI
// https://www.w3.org/TR/navigation-timing/#privacy
user_pref("dom.enable_performance", false); // [DEFAULT: true]
user_pref("dom.enable_performance_navigation_timing", false); // [DEFAULT: true]
// -------------------------------------
// Pref : Disable sensor API
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/15758
// https://blog.lukaszolejnik.com/stealing-sensitive-browser-data-with-the-w3c-ambient-light-sensor-api/
// https://bugzilla.mozilla.org/buglist.cgi?bug_id=1357733,1292751
user_pref("device.sensors.enabled", false); // [DEFAULT: true]
user_pref("device.sensors.ambientLight.enabled", false); // [DEFAULT: false]
user_pref("device.sensors.motion.enabled", false); // [DEFAULT: true]
user_pref("device.sensors.orientation.enabled", false); // [DEFAULT: true]
user_pref("device.sensors.proximity.enabled", false); // [DEFAULT: false]
user_pref("device.sensors.test.events", false); // [DEFAULT: false]
// -------------------------------------
// Pref : Disable gamepad API - USB device ID enumeration
// Optional protection depending on your connected devices
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/13023
user_pref("dom.gamepad.enabled", false); // [DEFAULT: true]
user_pref("dom.gamepad.extensions.enabled", false); // [DEFAULT: true]
user_pref("dom.gamepad.haptic_feedback.enabled", false); // [DEFAULT: false]
user_pref("dom.gamepad.test.enabled", false); // [DEFAULT: true]
user_pref("dom.gamepad.extensions.lightindicator", false); // [DEFAULT: false]
user_pref("dom.gamepad.extensions.multitouch", false); // [DEFAULT: false]
// -------------------------------------
// Pref : Disable giving away network info
// e.g. bluetooth, cellular, ethernet, wifi, wimax, other, mixed, unknown, none
// https://developer.mozilla.org/docs/Web/API/Network_Information_API
// https://wicg.github.io/netinfo/
// https://bugzilla.mozilla.org/960426
user_pref("dom.netinfo.enabled", false); // [DEFAULT: true]
// -------------------------------------
// Pref : Disable the SpeechSynthesis (Text-to-Speech) part of the Web Speech API
// https://developer.mozilla.org/docs/Web/API/Web_Speech_API
// https://developer.mozilla.org/docs/Web/API/SpeechSynthesis
// https://wiki.mozilla.org/HTML5_Speech_API
user_pref("media.webspeech.synth.enabled", false); // [DEFAULT: true]
user_pref("media.webspeech.synth_force_global_queue", false); // [DEFAULT: false]
// -------------------------------------
// Pref : Disable video statistics - JS performance fingerprinting
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/15757
// https://bugzilla.mozilla.org/654550
user_pref("media.video_stats.enabled", false); // [DEFAULT: true]
// -------------------------------------
// Pref : Force touch events enabled by default
// Fingerprinting attack vector - leaks screen res & actual screen coordinates.
// 0=disabled, 1=enabled, 2=autodetect
// This pref is set to 2 by default, which results in the Touch API being exposed only when touch hardware is present. So we should either set it to "1" (enable) or "0" (disable) to ensure that JS code can't fingerprint the user's hardware.
// https://developer.mozilla.org/docs/Web/API/Touch_events
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/10286
user_pref("dom.w3c_touch_events.enabled", 1); // [DEFAULT: 2] // [BUG] ff disabled, disallow copy/paste any text
// -------------------------------------
// Pref : Disable MediaDevices change detection
// https://developer.mozilla.org/docs/Web/Events/devicechange
// https://developer.mozilla.org/docs/Web/API/MediaDevices/ondevicechange
user_pref("media.ondevicechange.enabled", false); // [DEFAULT: true]
// -------------------------------------
// Pref : Disable WebGL debug info being available to websites
// https://bugzilla.mozilla.org/1171228
// https://developer.mozilla.org/docs/Web/API/WEBGL_debug_renderer_info
user_pref("webgl.enable-debug-renderer-info", false); // [DEFAULT: true]
// -------------------------------------
// Pref : Disable PointerEvents
// https://developer.mozilla.org/en-US/docs/Web/API/PointerEvent
user_pref("dom.w3c_pointer_events.enabled", false); // [DEFAULT: false]
// -------------------------------------
// Pref : Disable Battery Status API
// Initially a Linux issue (high precision readout) that was fixed.
// However, it is still another metric for fingerprinting, used to raise entropy.
// e.g. do you have a battery or not, current charging status, charge level, times remaining etc
// https://bugzilla.mozilla.org/1313580
user_pref("dom.battery.enabled", false); // [DEFAULT: true]
// -------------------------------------
// Pref : Disable virtual reality devices APIs
// https://developer.mozilla.org/en-US/Firefox/Releases/36#Interfaces.2FAPIs.2FDOM
// https://developer.mozilla.org/en-US/docs/Web/API/WebVR_API
user_pref("dom.vr.enabled", false); // [DEFAULT: true]
user_pref("dom.vr.autoactivate.enabled", false);
user_pref("dom.vr.oculus.enabled", false);
user_pref("dom.vr.oculus.invisible.enabled", false);
user_pref("dom.vr.openvr.enabled", false);
user_pref("dom.vr.osvr.enabled", false);
user_pref("dom.vr.poseprediction.enabled", false);
user_pref("dom.vr.puppet.enabled", false);
user_pref("dom.vr.require-gesture", true);
user_pref("gfx.vr.osvr.clientKitLibPath", "");
user_pref("gfx.vr.osvr.clientLibPath", "");
user_pref("gfx.vr.osvr.commonLibPath", "");
user_pref("gfx.vr.osvr.utilLibPath", "");
user_pref("dom.vr.process.enabled", false);
user_pref("dom.vr.webxr.enabled", false);
user_pref("dom.vr.always_support_ar", false);
user_pref("dom.vr.always_support_vr", false);
// -------------------------------------
// Pref : Block by default permission for Virtual Reality
// 0=always ask (default), 1=allow, 2=block
user_pref("permissions.default.xr", 2); // [DESKTOP] 
// -------------------------------------
// Pref : Disable hardware acceleration to reduce graphics fingerprinting
// [WARNING] Affects text rendering (fonts will look different), impacts video performance, and parts of Quantum that utilize the GPU will also be affected as they are rolled out
// https://wiki.mozilla.org/Platform/GFX/HardwareAcceleration 
// user_pref("gfx.direct2d.disabled", true); // [DESKTOP] // [WINDOWS]
// user_pref("layers.acceleration.disabled", true); // [DEFAULT: false]
// user_pref("layers.acceleration.force-enabled", false); // [BUG] Force close during startup
// -------------------------------------
// Pref : Disable Web Audio API
// https://bugzilla.mozilla.org/show_bug.cgi?id=1288359
user_pref("dom.webaudio.enabled", false); // [DEFAULT: true]
// -------------------------------------
// Pref : Disable Media Capabilities API
// [SETUP-PERF] This *may* affect media performance if disabled, no one is sure
// https://github.com/WICG/media-capabilities
// https://wicg.github.io/media-capabilities/#security-privacy-considerations
// user_pref("media.media-capabilities.enabled", false); // [DEFAULT: true]
// -------------------------------------
// Pref : Disable showing about:blank as soon as possible during startup
// true=no longer masks the RFP chrome resizing activity
// https://bugzilla.mozilla.org/1448423
user_pref("browser.startup.blankWindow", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable network API
// https://developer.mozilla.org/en-US/docs/Web/API/Connection/onchange
// https://www.torproject.org/projects/torbrowser/design/#fingerprinting-defenses
user_pref("dom.network.enabled", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable chrome animations
// 0=no-preference, 1=reduce. RFP spoofs this for web content
user_pref("ui.prefersReducedMotion", 1); // [HIDDEN PREF]
// -------------------------------------
// Pref: Navigator DOM object overrides
// [WARNING] DO NOT USE ***/
// user_pref("general.appname.override", ""); // [HIDDEN PREF]
// user_pref("general.appversion.override", ""); // [HIDDEN PREF]
// user_pref("general.buildID.override", ""); // [HIDDEN PREF]
// user_pref("general.oscpu.override", ""); // [HIDDEN PREF]
// user_pref("general.platform.override", ""); // [HIDDEN PREF]
// user_pref("general.useragent.override", ""); // [HIDDEN PREF]
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : UI (User Interface)
// >>>>>>>>>>>>>>>>>>>>>
// Pref : Disable third-party cookie UI
user_pref("browser.contentblocking.rejecttrackers.ui.enabled", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable tracking protection UI list editing under preferences
user_pref("browser.contentblocking.trackingprotection.ui.enabled", false); // [DESKTOP]
// -------------------------------------
// Pref : Disable auto hide download button
user_pref("browser.download.autohideButton", false); // [DESKTOP]
//
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : Personal
// >>>>>>>>>>>>>>>>>>>>
// Pref : Enable "Always enable zoom" feature by default
// When true, zooming will be enabled on all sites, even ones that declare user-scalable=no
user_pref("browser.ui.zoom.force-user-scalable", true); // [DEFAULT: false]
// -------------------------------------
// Pref : Disable inline autocomplete in URL bar
// https://support.mozilla.org/en-US/kb/address-bar-autocomplete-firefox#w_url-autocomplete
user_pref("browser.urlbar.autoFill", false); // [DESKTOP]
user_pref("browser.urlbar.autoFill.typed", false); // [DESKTOP]
// -------------------------------------
// Pref : Set bookmarks backups
// To compensate for the case of bookmarks being lost due to a system crash.
user_pref("browser.bookmarks.max_backups", 0); // [DEFAULT: 5]
// -------------------------------------
// Pref : Set home provider syncing only on wifi
// 0=sync always, 1=sync only when on wifi
user_pref("home.sync.updateMode", 1); // [DEFAULT: 0]
// user_pref("home.sync.checkIntervalSecs", 3600); //
// -------------------------------------
// Pref : Middle-click mouse enabling auto-scrolling
user_pref("general.autoScroll", true); // [DESKTOP]
// -------------------------------------
// Pref : Disable buttons
user_pref("pref.general.disable_button.default_browser", true); // [DESKTOP]
user_pref("pref.privacy.disable_button.view_passwords", true); // [DESKTOP]
// -------------------------------------
// Pref : Disable Reader mode
// user_pref("reader.parse-on-load.enabled", false);
// -------------------------------------
// Pref : Disable dark theme on forms
user_pref("widget.content.gtk-theme-override", "Adwaita"); // [DESKTOP]
// -------------------------------------
// Pref: Disable "Ctrl+Tab cycles through tabs in recently used order"
// https://bugzilla.mozilla.org/1473595
user_pref("browser.ctrlTab.recentlyUsedOrder", false); // [DESKTOP]
// -------------------------------------
// Pref : Display long lines in view-source page
user_pref("view_source.wrap_long_lines", true);
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
// Section : Deprecated / Removed / Legacy / Renamed
// >>>>>>>>>>>>>>>>>>>>
// FF79
// -------------------------------------
// Pref: Enforce fallback text encoding to match en-US
// When the content or server doesn't declare a charset the browser will
// fallback to the "Current locale" based on your application language
// [TEST] https://hsivonen.com/test/moz/check-charset.htm
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/20025
// https://bugzilla.mozilla.org/1603712
user_pref("intl.charset.fallback.override", "windows-1252");
// -------------------------------------
// FF82
// -------------------------------------
// Pref: Disable geographically specific results/search engines e.g. "browser.search.*.US"
// i.e. ignore all of Mozilla's various search engines in multiple locales
// https://bugzilla.mozilla.org/1619926
user_pref("browser.search.geoSpecificDefaults", false);
user_pref("browser.search.geoSpecificDefaults.url", "");
//