1711 lines
97 KiB
JavaScript
1711 lines
97 KiB
JavaScript
//
|
|
// **********************************************************************************
|
|
// user.js | Firefox *
|
|
// *
|
|
// https://git.nixnet.xyz/Narsil/desktop_user.js *
|
|
// *********************************************************************************/
|
|
//
|
|
// Author : Narsil : https://git.nixnet.xyz/Narsil
|
|
//
|
|
//
|
|
//
|
|
// Based on : arkenfox : https://github.com/arkenfox/user.js
|
|
//
|
|
//
|
|
// License : https://git.nixnet.xyz/Narsil/desktop_user.js/raw/branch/master/LICENSE
|
|
//
|
|
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
|
|
// STARTUP
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Disable about:config warning
|
|
// FF71-72: chrome://global/content/config.xul
|
|
// FF73+: chrome://global/content/config.xhtml ***/
|
|
user_pref("general.warnOnAboutConfig", false); // XUL/XHTML version
|
|
user_pref("browser.aboutConfig.showWarning", false); // HTML version [FF71+]
|
|
//-------------------------------------
|
|
// Disable separate about:welcome page
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=1617783
|
|
user_pref("browser.aboutwelcome.enabled", false);
|
|
user_pref("trailhead.firstrun.branches", "");
|
|
//-------------------------------------
|
|
// Disable default browser check
|
|
// [SETTING] General>Startup>Always check if Firefox is your default browser ***/
|
|
user_pref("browser.shell.checkDefaultBrowser", false);
|
|
// -------------------------------------
|
|
// 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
|
|
// [SETTING] General>Startup>Restore previous session ***/
|
|
user_pref("browser.startup.page", 0);
|
|
// -------------------------------------
|
|
// Set HOME+NEWWINDOW page
|
|
// about:home=Activity Stream (default), custom URL, about:blank
|
|
// [SETTING] Home>New Windows and Tabs>Homepage and new windows ***/
|
|
user_pref("browser.startup.homepage", "about:blank");
|
|
// -------------------------------------
|
|
// Set NEWTAB page
|
|
// true=Activity Stream (default), false=blank page
|
|
// [SETTING] Home>New Windows and Tabs>New tabs ***/
|
|
user_pref("browser.newtabpage.enabled", false);
|
|
user_pref("browser.newtab.preload", false);
|
|
// -------------------------------------
|
|
// Disable Activity Stream telemetry ***/
|
|
user_pref("browser.newtabpage.activity-stream.feeds.telemetry", false);
|
|
user_pref("browser.newtabpage.activity-stream.telemetry", false);
|
|
user_pref("browser.newtabpage.activity-stream.showSearch", false);
|
|
user_pref("browser.newtabpage.activity-stream.feeds.topsites", false);
|
|
user_pref("browser.newtabpage.activity-stream.feeds.section.highlights", false);
|
|
user_pref("browser.newtabpage.activity-stream.feeds.asrouterfeed", false);
|
|
// -------------------------------------
|
|
// 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.feeds.snippets", false);
|
|
user_pref("browser.newtabpage.activity-stream.asrouter.providers.snippets", "{}");
|
|
// -------------------------------------
|
|
// Disable Activity Stream Top Stories, Pocket-based and/or sponsored content ***/
|
|
user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false);
|
|
user_pref("browser.newtabpage.activity-stream.section.highlights.includePocket", false);
|
|
user_pref("browser.newtabpage.activity-stream.showSponsored", false);
|
|
user_pref("browser.newtabpage.activity-stream.feeds.discoverystreamfeed", false); // [FF66+]
|
|
// -------------------------------------
|
|
// Disable Activity Stream recent Highlights in the Library [FF57+] ***/
|
|
user_pref("browser.library.activity-stream.enabled", false);
|
|
// -------------------------------------
|
|
// Clear default topsites
|
|
// [NOTE] This does not block you from adding your own ***/
|
|
user_pref("browser.newtabpage.activity-stream.default.sites", "");
|
|
// -------------------------------------
|
|
// Start Firefox in PB (Private Browsing) mode
|
|
// https://wiki.mozilla.org/Private_Browsing
|
|
// https://spreadprivacy.com/is-private-browsing-really-private/ ***/
|
|
// user_pref("browser.privatebrowsing.autostart", true);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// GEOLOCATION ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Disable Location-Aware Browsing
|
|
// [NOTE] Best left at default "true", fingerprintable, is already behind a prompt
|
|
// https://www.mozilla.org/firefox/geolocation/ ***/
|
|
user_pref("geo.enabled", false);
|
|
// -------------------------------------
|
|
// Set a default permission for Location [FF58+]
|
|
// 0=always ask (default), 1=allow, 2=block
|
|
// [NOTE] Best left at default "always ask", fingerprintable via Permissions API
|
|
// [SETTING] to add site exceptions: Page Info>Permissions>Access Your Location
|
|
// [SETTING] to manage site exceptions: Options>Privacy & Security>Permissions>Location>Settings ***/
|
|
// user_pref("permissions.default.geo", 2);
|
|
// -------------------------------------
|
|
// Use Mozilla geolocation service instead of Google when geolocation is enabled [FF74+]
|
|
// Optionally enable logging to the console (defaults to false) ***/
|
|
user_pref("geo.provider.network.url", "");
|
|
// user_pref("geo.provider.network.logging.enabled", true); // [HIDDEN PREF]
|
|
// -------------------------------------
|
|
// Disable using the OS's geolocation service ***/
|
|
user_pref("geo.provider.ms-windows-location", false); // [WINDOWS]
|
|
user_pref("geo.provider.use_corelocation", false); // [MAC]
|
|
user_pref("geo.provider.use_gpsd", false); // [LINUX]
|
|
// -------------------------------------
|
|
// Disable region updates
|
|
// https://firefox-source-docs.mozilla.org/toolkit/modules/toolkit_modules/Region.html ***/
|
|
user_pref("browser.region.network.url", ""); // [FF78+]
|
|
user_pref("browser.region.update.enabled", false); // [[FF79+]
|
|
// -------------------------------------
|
|
// Set search region
|
|
// May not be hidden if Firefox has changed your settings due to your region ***/
|
|
user_pref("browser.search.region", "US"); // [HIDDEN PREF]
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// LANGUAGE / LOCALE ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Set preferred language for displaying web pages
|
|
// https://addons.mozilla.org/about ***/
|
|
user_pref("intl.accept_languages", "en-US, en");
|
|
// -------------------------------------
|
|
// Enforce US English locale regardless of the system locale
|
|
// [SETUP-WEB] May break some input methods e.g xim/ibus for CJK languages
|
|
// https://bugzilla.mozilla.org/buglist.cgi?bug_id=867501,1629630 ***/
|
|
user_pref("javascript.use_us_english_locale", true); // [HIDDEN PREF]
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// QUIET FOX
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Disable auto-CHECKING for extension and theme updates ***/
|
|
user_pref("extensions.update.enabled", false);
|
|
// -------------------------------------
|
|
// Disable auto-INSTALLING Firefox updates [NON-WINDOWS FF65+]
|
|
// [NOTE] In FF65+ on Windows this SETTING (below) is now stored in a file and the pref was removed
|
|
// [SETTING] General>Firefox Updates>Check for updates but let you choose to install them ***/
|
|
user_pref("app.update.auto", false);
|
|
// -------------------------------------
|
|
// Disable auto-INSTALLING extension and theme updates
|
|
// [SETTING] about:addons>Extensions>[cog-wheel-icon]>Update Add-ons Automatically (toggle) ***/
|
|
user_pref("extensions.update.autoUpdateDefault", false);
|
|
// -------------------------------------
|
|
// Disable extension metadata
|
|
// used when installing/updating an extension, and in daily background update checks:
|
|
// when false, extension detail tabs will have no description ***/
|
|
user_pref("extensions.getAddons.cache.enabled", false);
|
|
// ------------------------------------
|
|
// Disable connections to Mozilla servers
|
|
user_pref("services.settings.server", "");
|
|
// -------------------------------------
|
|
// Disable search engine updates (e.g. OpenSearch)
|
|
// This does not affect Mozilla's built-in or Web Extension search engines ***/
|
|
user_pref("browser.search.update", false);
|
|
// -------------------------------------
|
|
// Disable sending Flash crash reports ***/
|
|
user_pref("dom.ipc.plugins.flash.subprocess.crashreporter.enabled", false);
|
|
// -------------------------------------
|
|
// Disable sending the URL of the website where a plugin crashed ***/
|
|
user_pref("dom.ipc.plugins.reportCrashURL", false);
|
|
// -------------------------------------
|
|
// Disable about:addons' Recommendations pane (uses Google Analytics) ***/
|
|
user_pref("extensions.getAddons.showPane", false); // [HIDDEN PREF]
|
|
// Disable recommendations in about:addons' Extensions and Themes panes [FF68+] ***/
|
|
user_pref("extensions.htmlaboutaddons.recommendations.enabled", false);
|
|
// -------------------------------------
|
|
// Disable telemetry
|
|
// https://firefox-source-docs.mozilla.org/toolkit/components/telemetry/telemetry/internals/preferences.html
|
|
// https://medium.com/georg-fritzsche/data-preference-changes-in-firefox-58-2d5df9c428b5 ***/
|
|
user_pref("toolkit.telemetry.unified", false);
|
|
user_pref("toolkit.telemetry.enabled", false);
|
|
user_pref("toolkit.telemetry.server", "data:,");
|
|
user_pref("toolkit.telemetry.archive.enabled", false);
|
|
user_pref("toolkit.telemetry.newProfilePing.enabled", false); // [FF55+]
|
|
user_pref("toolkit.telemetry.shutdownPingSender.enabled", false); // [FF55+]
|
|
user_pref("toolkit.telemetry.updatePing.enabled", false); // [FF56+]
|
|
user_pref("toolkit.telemetry.bhrPing.enabled", false); // [FF57+] Background Hang Reporter
|
|
user_pref("toolkit.telemetry.firstShutdownPing.enabled", false); // [FF57+]
|
|
// -------------------------------------
|
|
// Disable collect Telemetry on tracking resources traffic.
|
|
// An experiment that analyses HTTP traffic and will run at most until Firefox 73, looking for the prevalence of tracking resources going through HTTP.
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=1533363
|
|
user_pref("network.traffic_analyzer.enabled", false);
|
|
// -------------------------------------
|
|
// Disable Telemetry Coverage
|
|
// https://blog.mozilla.org/data/2018/08/20/effectively-measuring-search-in-firefox/ ***/
|
|
user_pref("toolkit.telemetry.coverage.opt-out", true); // [HIDDEN PREF]
|
|
user_pref("toolkit.coverage.opt-out", true); // [FF64+] [HIDDEN PREF]
|
|
user_pref("toolkit.coverage.endpoint.base", "");
|
|
// -------------------------------------
|
|
// Disable Health Reports
|
|
// [SETTING] Privacy & Security>Firefox Data Collection & Use>Allow Firefox to send technical... data ***/
|
|
user_pref("datareporting.healthreport.uploadEnabled", false);
|
|
// -------------------------------------
|
|
// Disable new data submission, master kill switch [FF41+]
|
|
// If disabled, no policy is shown or upload takes place, ever
|
|
// https://bugzilla.mozilla.org/1195552 ***/
|
|
user_pref("datareporting.policy.dataSubmissionEnabled", false);
|
|
// -------------------------------------
|
|
// Disable Studies (see 0503)
|
|
// [SETTING] Privacy & Security>Firefox Data Collection & Use>Allow Firefox to install and run studies ***/
|
|
user_pref("app.shield.optoutstudies.enabled", false);
|
|
// -------------------------------------
|
|
// Disable personalized Extension Recommendations in about:addons and AMO [FF65+]
|
|
// This pref has no effect when Health Reports are disabled
|
|
// Privacy & Security>Firefox Data Collection & Use>Allow Firefox to make personalized extension recommendations
|
|
// https://support.mozilla.org/kb/personalized-extension-recommendations ***/
|
|
user_pref("browser.discovery.enabled", false);
|
|
// -------------------------------------
|
|
// Disable Crash Reports ***/
|
|
user_pref("breakpad.reportURL", "");
|
|
user_pref("browser.tabs.crashReporting.sendReport", false); // [FF44+]
|
|
user_pref("browser.crashReports.unsubmittedCheck.enabled", false); // [FF51+]
|
|
// -------------------------------------
|
|
// Disable backlogged Crash Reports
|
|
// [SETTING] Privacy & Security>Firefox Data Collection & Use>Allow Firefox to send backlogged crash reports ***/
|
|
user_pref("browser.crashReports.unsubmittedCheck.autoSubmit2", false); // [FF58+]
|
|
// -------------------------------------
|
|
// Disable 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); // [FF52+]
|
|
// -------------------------------------
|
|
// Disable Network Connectivity checks [FF65+]
|
|
// https://bugzilla.mozilla.org/1460537 ***/
|
|
user_pref("network.connectivity-service.enabled", false);
|
|
// -------------------------------------
|
|
// Disable contentblocking reports
|
|
user_pref("browser.contentblocking.reportBreakage.url", "");
|
|
user_pref("browser.contentblocking.report.cookie.url", "");
|
|
user_pref("browser.contentblocking.report.cryptominer.url", "");
|
|
user_pref("browser.contentblocking.report.fingerprinter.url", "");
|
|
user_pref("browser.contentblocking.report.lockwise.enabled", false);
|
|
user_pref("browser.contentblocking.report.lockwise.how_it_works.url", "");
|
|
user_pref("browser.contentblocking.report.manage_devices.url", "");
|
|
user_pref("browser.contentblocking.report.monitor.enabled", false);
|
|
user_pref("browser.contentblocking.report.monitor.how_it_works.url", "");
|
|
user_pref("browser.contentblocking.report.monitor.sign_in_url", "");
|
|
user_pref("browser.contentblocking.report.monitor.url", "");
|
|
user_pref("browser.contentblocking.report.proxy.enabled", false);
|
|
user_pref("browser.contentblocking.report.proxy_extension.url", "");
|
|
user_pref("browser.contentblocking.report.social.url", "");
|
|
user_pref("browser.contentblocking.report.tracker.url", "");
|
|
user_pref("browser.contentblocking.report.endpoint_url", "");
|
|
user_pref("browser.contentblocking.report.monitor.home_page_url", "");
|
|
user_pref("browser.contentblocking.report.monitor.preferences_url", "");
|
|
// -------------------------------------
|
|
// 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", "");
|
|
// -------------------------------------
|
|
// Disable send content blocking log to about:protections
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=1549832
|
|
user_pref("browser.contentblocking.database.enabled", false);
|
|
// -------------------------------------
|
|
// Disable celebrating milestone toast when certain numbers of trackers are blocked
|
|
user_pref("browser.contentblocking.cfr-milestone.enabled", false);
|
|
// Pref : Disable check default browser on first run
|
|
user_pref("browser.shell.didSkipDefaultBrowserCheckOnFirstRun", true);
|
|
// -------------------------------------
|
|
// 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);
|
|
// -------------------------------------
|
|
// Disable Corroborate.jsm telemetry
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=1608308
|
|
user_pref("corroborator.enabled", false);
|
|
// -------------------------------------
|
|
// 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", "");
|
|
user_pref("security.pki.crlite_mode", 1);
|
|
// -------------------------------------
|
|
// Block unwanted connections
|
|
user_pref("app.feedback.baseURL", "");
|
|
user_pref("app.support.baseURL", "");
|
|
// -------------------------------------
|
|
// Disable report browser errors to Mozilla
|
|
// https://bugzilla.mozilla.org/show_bug.cgi?id=1426482
|
|
user_pref("browser.chrome.errorReporter.infoURL", "");
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// SAFE BROWSING (SB)
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Disable SB (Safe Browsing)
|
|
// [WARNING] Do this at your own risk! These are the master switches.
|
|
// [SETTING] Privacy & Security>Security>... "Block dangerous and deceptive content" ***/
|
|
user_pref("browser.safebrowsing.malware.enabled", false);
|
|
user_pref("browser.safebrowsing.phishing.enabled", false);
|
|
// -------------------------------------
|
|
// Disable SB checks for downloads (both local lookups + remote)
|
|
// This is the master switch for the safebrowsing.downloads
|
|
// [SETTING] Privacy & Security>Security>... "Block dangerous downloads" ***/
|
|
user_pref("browser.safebrowsing.downloads.enabled", false);
|
|
// -------------------------------------
|
|
// Disable SB checks for downloads (remote)
|
|
// [SETUP-SECURITY] If you do not understand this, or you want this protection, then override it ***/
|
|
user_pref("browser.safebrowsing.downloads.remote.enabled", false);
|
|
user_pref("browser.safebrowsing.downloads.remote.url", "");
|
|
// -------------------------------------
|
|
// Disable SB checks for unwanted software
|
|
// [SETTING] Privacy & Security>Security>... "Warn you about unwanted and uncommon software" ***/
|
|
user_pref("browser.safebrowsing.downloads.remote.block_potentially_unwanted", false);
|
|
user_pref("browser.safebrowsing.downloads.remote.block_uncommon", false);
|
|
// -------------------------------------
|
|
// Disable 'ignore this warning' on SB warnings [FF45+]
|
|
// If clicked, it bypasses the block for that session. This is a means for admins to enforce SB
|
|
// https://bugzilla.mozilla.org/1226490 ***/
|
|
user_pref("browser.safebrowsing.allowOverride", false);
|
|
// -------------------------------------
|
|
// Google connections
|
|
user_pref("browser.safebrowsing.downloads.remote.block_dangerous", false);
|
|
user_pref("browser.safebrowsing.downloads.remote.block_dangerous_host", false);
|
|
user_pref("browser.safebrowsing.provider.google.updateURL", "");
|
|
user_pref("browser.safebrowsing.provider.google.gethashURL", "");
|
|
user_pref("browser.safebrowsing.provider.google4.updateURL", "");
|
|
user_pref("browser.safebrowsing.provider.google4.gethashURL", "");
|
|
user_pref("browser.safebrowsing.provider.google.reportURL", "");
|
|
user_pref("browser.safebrowsing.reportPhishURL", "");
|
|
user_pref("browser.safebrowsing.provider.google4.reportURL", "");
|
|
user_pref("browser.safebrowsing.provider.google.reportMalwareMistakeURL", "");
|
|
user_pref("browser.safebrowsing.provider.google.reportPhishMistakeURL", "");
|
|
user_pref("browser.safebrowsing.provider.google4.reportMalwareMistakeURL", "");
|
|
user_pref("browser.safebrowsing.provider.google4.reportPhishMistakeURL", "");
|
|
user_pref("browser.safebrowsing.provider.google4.dataSharing.enabled", false);
|
|
user_pref("browser.safebrowsing.provider.google4.dataSharingURL", "");
|
|
user_pref("browser.safebrowsing.provider.google.advisory", "");
|
|
user_pref("browser.safebrowsing.provider.google.gethashURL", "");
|
|
user_pref("browser.safebrowsing.provider.google4.advisoryURL", "");
|
|
user_pref("browser.safebrowsing.blockedURIs.enabled", false);
|
|
user_pref("browser.safebrowsing.provider.mozilla.gethashURL", "");
|
|
user_pref("browser.safebrowsing.provider.mozilla.updateURL", "");
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// SYSTEM ADD-ONS / EXPERIMENTS
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Disable Normandy/Shield [FF60+]
|
|
// 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);
|
|
user_pref("app.normandy.api_url", "");
|
|
user_pref("app.normandy.shieldLearnMoreUrl", "");
|
|
// -------------------------------------
|
|
// Disable System Add-on updates ***/
|
|
user_pref("extensions.systemAddon.update.enabled", false); // [FF62+]
|
|
user_pref("extensions.systemAddon.update.url", ""); // [FF44+]
|
|
// -------------------------------------
|
|
// Disable PingCentre telemetry (used in several System Add-ons) [FF57+]
|
|
// Currently blocked by 'datareporting.healthreport.uploadEnabled' ***/
|
|
user_pref("browser.ping-centre.telemetry", false);
|
|
// -------------------------------------
|
|
// Disable Screenshots
|
|
// alternatively in FF60+, disable uploading to the Screenshots server ***/
|
|
user_pref("extensions.screenshots.disabled", true); // [FF55+]
|
|
user_pref("extensions.screenshots.upload-disabled", true); // [FF60+]
|
|
// -------------------------------------
|
|
// Disable Form Autofill
|
|
// [NOTE] Stored data is NOT secure (uses a JSON file)
|
|
// [NOTE] Heuristics controls Form Autofill on forms without @autocomplete attributes
|
|
// [SETTING] Privacy & Security>Forms and Autofill>Autofill addresses
|
|
// https://wiki.mozilla.org/Firefox/Features/Form_Autofill ***/
|
|
user_pref("extensions.formautofill.addresses.enabled", false); // [FF55+]
|
|
user_pref("extensions.formautofill.available", "off"); // [FF56+]
|
|
user_pref("extensions.formautofill.creditCards.enabled", false); // [FF56+]
|
|
user_pref("extensions.formautofill.creditCards.available", false); // [FF57+]
|
|
user_pref("extensions.formautofill.heuristics.enabled", false); // [FF55+]
|
|
// -------------------------------------
|
|
// Disable Web Compatibility Reporter [FF56+]
|
|
// Web Compatibility Reporter adds a "Report Site Issue" button to send data to Mozilla ***/
|
|
user_pref("extensions.webcompat-reporter.enabled", false);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// BLOCK IMPLICIT OUTBOUND [not explicitly asked for - e.g. clicked on] ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Disable link prefetching
|
|
// https://developer.mozilla.org/docs/Web/HTTP/Link_prefetching_FAQ ***/
|
|
user_pref("network.prefetch-next", false);
|
|
// -------------------------------------
|
|
// Disable DNS prefetching
|
|
// https://developer.mozilla.org/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control ***/
|
|
user_pref("network.dns.disablePrefetch", true);
|
|
user_pref("network.dns.disablePrefetchFromHTTPS", true); // [DEFAULT: true]
|
|
// -------------------------------------
|
|
// Disable predictor / prefetching ***/
|
|
user_pref("network.predictor.enabled", false);
|
|
user_pref("network.predictor.enable-prefetch", false); // [FF48+]
|
|
// -------------------------------------
|
|
// Disable link-mouseover opening connection to linked server
|
|
// https://news.slashdot.org/story/15/08/14/2321202/how-to-quash-firefoxs-silent-requests ***/
|
|
user_pref("network.http.speculative-parallel-limit", 0);
|
|
// -------------------------------------
|
|
// Enforce no "Hyperlink Auditing" (click tracking)
|
|
// https://www.bleepingcomputer.com/news/software/major-browsers-to-prevent-disabling-of-click-tracking-privacy-risk/ ***/
|
|
user_pref("browser.send_pings", false); // [DEFAULT: false]
|
|
user_pref("browser.send_pings.require_same_host", true); // defense-in-depth
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// HTTP* / TCP/IP / DNS / PROXY / SOCKS etc ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// 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 (Dec 2020) shows ~8% 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.
|
|
// [NOTE] PHP defaults to IPv6 with "localhost". Use "php -S 127.0.0.1:PORT"
|
|
// [TEST] https://ipleak.org/
|
|
// https://github.com/arkenfox/user.js/issues/437#issuecomment-403740626
|
|
// https://www.internetsociety.org/tag/ipv6-security/ ***/
|
|
user_pref("network.dns.disableIPv6", true);
|
|
// -------------------------------------
|
|
// Disable HTTP2
|
|
// HTTP2 raises concerns with "multiplexing" and "server push", does nothing to
|
|
// enhance privacy, and opens up a number of server-side fingerprinting opportunities.
|
|
// [WARNING] Disabling this made sense in the past, and doesn't break anything, but HTTP2 is
|
|
// at 40% (December 2019) and growing. Don't be that one person using HTTP1.1 on HTTP2 sites
|
|
// https://http2.github.io/faq/
|
|
// https://blog.scottlogic.com/2014/11/07/http-2-a-quick-look.html
|
|
// https://http2.github.io/http2-spec/#rfc.section.10.8
|
|
// https://queue.acm.org/detail.cfm?id=2716278
|
|
// https://w3techs.com/technologies/details/ce-http2/all/all ***/
|
|
// 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); // [FF65+]
|
|
// -------------------------------------
|
|
// Disable HTTP Alternative Services [FF37+]
|
|
// [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://tools.ietf.org/html/rfc7838#section-9
|
|
// https://www.mnot.net/blog/2016/03/09/alt-svc ***/
|
|
user_pref("network.http.altsvc.enabled", false);
|
|
user_pref("network.http.altsvc.oe", false);
|
|
// -------------------------------------
|
|
// 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);
|
|
// -------------------------------------
|
|
// 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);
|
|
// -------------------------------------
|
|
// Disable FTP [FF60+]
|
|
// user_pref("network.ftp.enabled", false);
|
|
// -------------------------------------
|
|
// Disable using UNC (Uniform Naming Convention) paths [FF61+]
|
|
// [SETUP-CHROME] Can break extensions for profiles on network shares
|
|
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/26424 ***/
|
|
user_pref("network.file.disable_unc_paths", true); // [HIDDEN 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 (as of FF64)
|
|
// 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]
|
|
// -------------------------------------
|
|
// Disable DNS-over-HTTPS (DoH)
|
|
// See for details: https://support.mozilla.org/en-US/kb/firefox-dns-over-https
|
|
user_pref("network.trr.mode", 0);
|
|
user_pref("network.trr.uri", "");
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// LOCATION BAR / SEARCH BAR / SUGGESTIONS / HISTORY / FORMS
|
|
// Change items to suit for privacy vs convenience and functionality. Consider
|
|
// your environment (no unwanted eyeballs), your device (restricted access), your device's
|
|
// unattended state (locked, encrypted, forensic hardened).
|
|
// [NOTE] The urlbar is also commonly referred to as the location bar and address bar
|
|
// #Required reading [#] https://xkcd.com/538/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Disable location bar using search
|
|
// Don't leak URL typos to a search engine, give an error message instead.
|
|
// Examples: "secretplace,com", "secretplace/com", "secretplace com", "secret place.com"
|
|
// [NOTE] This does **not** affect explicit user action such as using search buttons in the
|
|
// dropdown, or using keyword search shortcuts you configure in options (e.g. 'd' for DuckDuckGo)
|
|
// [SETUP-CHROME] If you don't, or rarely, type URLs, or you use a default search
|
|
// engine that respects privacy, then you probably don't need this ***/
|
|
// user_pref("keyword.enabled", false);
|
|
// -------------------------------------
|
|
// Disable location bar domain guessing
|
|
// domain guessing intercepts DNS "hostname not found errors" and resends a
|
|
// request (e.g. by adding www or .com). This is inconsistent use (e.g. FQDNs), does not work
|
|
// via Proxy Servers (different error), is a flawed use of DNS (TLDs: why treat .com
|
|
// as the 411 for DNS errors?), privacy issues (why connect to sites you didn't
|
|
// intend to), can leak sensitive data (e.g. query strings: e.g. Princeton attack),
|
|
// and is a security risk (e.g. common typos & malicious sites set up to exploit this) ***/
|
|
user_pref("browser.fixup.alternate.enabled", false);
|
|
// -------------------------------------
|
|
// Display all parts of the url in the location bar ***/
|
|
user_pref("browser.urlbar.trimURLs", false);
|
|
// -------------------------------------
|
|
// 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 A 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);
|
|
// -------------------------------------
|
|
// Disable live search suggestions
|
|
// [NOTE] Both must be true for the location bar to work
|
|
// [SETUP-CHROME] Change these if you trust and use a privacy respecting search engine
|
|
// [SETTING] Search>Provide search suggestions | Show search suggestions in address bar results ***/
|
|
user_pref("browser.search.suggest.enabled", false);
|
|
user_pref("browser.urlbar.suggest.searches", false);
|
|
// -------------------------------------
|
|
// Disable location bar making speculative connections [FF56+]
|
|
// https://bugzilla.mozilla.org/1348275 ***/
|
|
user_pref("browser.urlbar.speculativeConnect.enabled", false);
|
|
// -------------------------------------
|
|
// Disable location bar leaking single words to a DNS provider **after searching** [FF78+]
|
|
// 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);
|
|
// -------------------------------------
|
|
// Disable location bar suggestion types
|
|
// [SETTING] Privacy & Security>Address Bar>When using the address bar, suggest ***/
|
|
user_pref("browser.urlbar.suggest.history", false);
|
|
user_pref("browser.urlbar.suggest.bookmark", false);
|
|
user_pref("browser.urlbar.suggest.openpage", false);
|
|
user_pref("browser.urlbar.suggest.topsites", false); // [FF78+]
|
|
// -------------------------------------
|
|
// Disable location bar dropdown
|
|
// This value controls the total number of entries to appear in the location bar dropdown
|
|
// [NOTE] Items (bookmarks/history/openpages) with a high "frecency"/"bonus" will always
|
|
// be displayed (no we do not know how these are calculated or what the threshold is),
|
|
// and this does not affect the search by search engine suggestion
|
|
// [NOTE] This setting is only useful if you want to enable search engine keywords
|
|
// (i.e. at least one of 0850a suggestion types must be true) but you want to *limit* suggestions shown ***/
|
|
// user_pref("browser.urlbar.maxRichResults", 0);
|
|
// -------------------------------------
|
|
// Disable location bar autofill
|
|
// https://support.mozilla.org/en-US/kb/address-bar-autocomplete-firefox#w_url-autocomplete ***/
|
|
user_pref("browser.urlbar.autoFill", false);
|
|
// -------------------------------------
|
|
// Disable search and form history
|
|
// [SETUP-WEB] Be aware that autocomplete form data can be read by third parties
|
|
// [NOTE] We also clear formdata on exit
|
|
// [SETTING] Privacy & Security>History>Custom Settings>Remember search and form history
|
|
// https://blog.mindedsecurity.com/2011/10/autocompleteagain.html
|
|
// https://bugzilla.mozilla.org/381681 ***/
|
|
user_pref("browser.formfill.enable", false);
|
|
// -------------------------------------
|
|
// Disable browsing and download history
|
|
// [NOTE] We also clear history and downloads on exiting Firefox
|
|
// [SETTING] Privacy & Security>History>Custom Settings>Remember browsing and download history ***/
|
|
user_pref("places.history.enabled", false);
|
|
// -------------------------------------
|
|
// Disable Windows jumplist [WINDOWS] ***/
|
|
user_pref("browser.taskbar.lists.enabled", false);
|
|
user_pref("browser.taskbar.lists.frequent.enabled", false);
|
|
user_pref("browser.taskbar.lists.recent.enabled", false);
|
|
user_pref("browser.taskbar.lists.tasks.enabled", false);
|
|
// -------------------------------------
|
|
// Disable Windows taskbar preview [WINDOWS] ***/
|
|
user_pref("browser.taskbar.previews.enable", false);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// PASSWORDS ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Disable saving passwords and password alerts.
|
|
// [NOTE] This does not clear any passwords already saved
|
|
// [SETTING] Privacy & Security>Logins and Passwords>Ask to save logins and passwords for websites ***/
|
|
user_pref("signon.rememberSignons", false);
|
|
user_pref("signon.generation.enabled", false);
|
|
user_pref("signon.management.page.breach-alerts.enabled", false);
|
|
user_pref("signon.management.page.breachAlertUrl", "");
|
|
// -------------------------------------
|
|
// Use a primary password
|
|
// There are no preferences for this. It is all handled internally.
|
|
// [SETTING] Privacy & Security>Logins and Passwords>Use a Primary Password
|
|
// https://support.mozilla.org/kb/use-primary-password-protect-stored-logins-and-pas ***/
|
|
// Set how often Firefox should ask for the primary password
|
|
// 0=the first time (default), 1=every time it's needed, 2=every n minutes ***/
|
|
user_pref("security.ask_for_password", 2);
|
|
// -------------------------------------
|
|
// Set how often in minutes Firefox should ask for the primary password
|
|
// in minutes, default is 30 ***/
|
|
user_pref("security.password_lifetime", 5);
|
|
// -------------------------------------
|
|
// 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
|
|
// [SETTING] Privacy & Security>Logins and Passwords>Autofill logins and passwords
|
|
// https://freedom-to-tinker.com/2017/12/27/no-boundaries-for-user-identities-web-trackers-exploit-browser-login-managers/ ***/
|
|
user_pref("signon.autofillForms", false);
|
|
// -------------------------------------
|
|
// Disable formless login capture for Password Manager [FF51+] ***/
|
|
user_pref("signon.formlessCapture.enabled", false);
|
|
// -------------------------------------
|
|
// Limit (or disable) HTTP authentication credentials dialogs triggered by sub-resources [FF41+]
|
|
// 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);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// CACHE ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Disable disk cache
|
|
// [SETUP-PERF] If you think disk cache may help (heavy tab user, high-res video),
|
|
// or you use a hardened Temporary Containers, then feel free to override this
|
|
// [NOTE] We also clear cache on exiting Firefox ***/
|
|
user_pref("browser.cache.disk.enable", false);
|
|
// -------------------------------------
|
|
// Disable memory cache
|
|
// capacity: -1=determine dynamically (default), 0=none, n=memory capacity in kibibytes ***/
|
|
// user_pref("browser.cache.memory.enable", false);
|
|
// user_pref("browser.cache.memory.capacity", 0);
|
|
// -------------------------------------
|
|
// Disable permissions manager from writing to disk [RESTART]
|
|
// [NOTE] This means any permission changes are session only
|
|
// https://bugzilla.mozilla.org/967812 ***/
|
|
// user_pref("permissions.memory_only", true); // [HIDDEN 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 ***/
|
|
user_pref("browser.privatebrowsing.forceMediaMemoryCache", true); // [FF75+]
|
|
user_pref("media.memory_cache_max_size", 65536);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// SESSIONS & SESSION RESTORE ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Exclude "Undo Closed Tabs" in Session Restore ***/
|
|
// user_pref("browser.sessionstore.max_tabs_undo", 0);
|
|
// -------------------------------------
|
|
// Disable storing extra session data [SETUP-CHROME]
|
|
// 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);
|
|
// -------------------------------------
|
|
// Disable resuming session from crash ***/
|
|
// user_pref("browser.sessionstore.resume_from_crash", false);
|
|
// -------------------------------------
|
|
// 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
|
|
// [SETUP-CHROME] 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);
|
|
// -------------------------------------
|
|
// Disable automatic Firefox start and session restore after reboot [FF62+] [WINDOWS]
|
|
// https://bugzilla.mozilla.org/603903 ***/
|
|
user_pref("toolkit.winRegisterApplicationRestart", false);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// FAVICONS ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// 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.
|
|
// If set to false then the shortcuts use a generic Firefox icon ***/
|
|
user_pref("browser.shell.shortcutFavicons", false);
|
|
// -------------------------------------
|
|
// Disable favicons in history and bookmarks
|
|
// Stored as data blobs in favicons.sqlite, these don't reveal anything that your
|
|
// actual history (and bookmarks) already do. Your history is more detailed, so
|
|
// control that instead; e.g. disable history, clear history on close, use PB mode
|
|
// [NOTE] favicons.sqlite is sanitized on Firefox close, not in-session ***/
|
|
user_pref("browser.chrome.site_icons", false);
|
|
// -------------------------------------
|
|
// Disable favicons in web notifications ***/
|
|
user_pref("alerts.showFavicons", false); // [DEFAULT: false]
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// SSL (Secure Sockets Layer) / TLS (Transport Layer Security) ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Require safe negotiation
|
|
// Blocks connections to servers that don't support RFC 5746 [2] 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);
|
|
// -------------------------------------
|
|
// Control TLS versions with min and max
|
|
// 1=TLS 1.0, 2=TLS 1.1, 3=TLS 1.2, 4=TLS 1.3
|
|
// [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);
|
|
// -------------------------------------
|
|
// Enforce TLS 1.0 and 1.1 downgrades as session only */
|
|
user_pref("security.tls.version.enable-deprecated", false);
|
|
// -------------------------------------
|
|
// Disable SSL session tracking [FF36+]
|
|
// SSL Session IDs are unique, last up to 24hrs in Firefox, and can be used for tracking
|
|
// [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://tools.ietf.org/html/rfc5077
|
|
// https://bugzilla.mozilla.org/967977
|
|
// https://arxiv.org/abs/1810.07304 ***/
|
|
user_pref("security.ssl.disable_session_identifiers", true); // [HIDDEN PREF]
|
|
// -------------------------------------
|
|
// Disable SSL Error Reporting
|
|
// https://firefox-source-docs.mozilla.org/browser/base/sslerrorreport/preferences.html ***/
|
|
user_pref("security.ssl.errorReporting.automatic", false);
|
|
user_pref("security.ssl.errorReporting.enabled", false);
|
|
user_pref("security.ssl.errorReporting.url", "");
|
|
// -------------------------------------
|
|
// Disable TLS1.3 0-RTT (round-trip time) [FF51+]
|
|
// 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);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// OCSP (Online Certificate Status Protocol)
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Enable OCSP Stapling
|
|
// https://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox/ ***/
|
|
user_pref("security.ssl.enable_ocsp_stapling", false);
|
|
// -------------------------------------
|
|
// Control when to use OCSP fetching (to confirm current validity of certificates)
|
|
// 0=disabled, 1=enabled (default), 2=enabled for EV certificates only
|
|
// OCSP (non-stapled) leaks information about the sites you visit to the CA (cert authority)
|
|
// It's a trade-off between security (checking) and privacy (leaking info to the CA)
|
|
// [NOTE] This pref only controls OCSP fetching and does not affect OCSP stapling
|
|
// https://en.wikipedia.org/wiki/Ocsp ***/
|
|
user_pref("security.OCSP.enabled", 0);
|
|
// -------------------------------------
|
|
// Set OCSP fetch failures (non-stapled) to hard-fail [SETUP-WEB]
|
|
// When a CA cannot be reached to validate a cert, Firefox just continues the connection (=soft-fail)
|
|
// Setting this pref to true tells Firefox to instead terminate the connection (=hard-fail)
|
|
// It is pointless to soft-fail when an OCSP fetch fails: you cannot confirm a cert is still valid (it
|
|
// could have been revoked) and/or you could be under attack (e.g. malicious blocking of OCSP servers)
|
|
// https://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox/
|
|
// https://www.imperialviolet.org/2014/04/19/revchecking.html ***/
|
|
user_pref("security.OCSP.require", false);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// CERTS / HPKP (HTTP Public Key Pinning) ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Disable or limit SHA-1 certificates
|
|
// 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
|
|
// [SETUP-CHROME] When disabled, some man-in-the-middle devices (e.g. security scanners and
|
|
// antivirus products, may fail to connect to HTTPS sites. SHA-1 is *almost* obsolete.
|
|
// [1] https://blog.mozilla.org/security/2016/10/18/phasing-out-sha-1-on-the-public-web/ ***/
|
|
user_pref("security.pki.sha1_enforcement_level", 1);
|
|
// -------------------------------------
|
|
// Disable Windows 8.1's Microsoft Family Safety cert [FF50+] [WINDOWS]
|
|
// 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);
|
|
// -------------------------------------
|
|
// Disable intermediate certificate caching (fingerprinting attack vector) [FF41+] [RESTART]
|
|
// [NOTE] This affects login/cert/key dbs. The effect is all credentials are session-only.
|
|
// Saved logins and passwords are not available. Reset the pref and restart to return them.
|
|
// https://shiftordie.de/blog/2017/02/21/fingerprinting-firefox-users-with-cached-intermediate-ca-certificates-fiprinca/ ***/
|
|
// user_pref("security.nocertdb", true); // [HIDDEN PREF]
|
|
// -------------------------------------
|
|
// Enforce strict pinning
|
|
// PKP (Public Key Pinning) 0=disabled 1=allow user MiTM (such as your antivirus), 2=strict
|
|
// [SETUP-WEB] If you rely on an AV (antivirus) to protect your web browsing
|
|
// by inspecting ALL your web traffic, then leave at current default=1
|
|
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/16206 ***/
|
|
user_pref("security.cert_pinning.enforcement_level", 2);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// MIXED CONTENT ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Enforce no insecure active content on https pages
|
|
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/21323 ***/
|
|
user_pref("security.mixed_content.block_active_content", true); // [DEFAULT: true]
|
|
// -------------------------------------
|
|
// Disable insecure passive content (such as images) on https pages [SETUP-WEB] ***/
|
|
user_pref("security.mixed_content.block_display_content", true);
|
|
// -------------------------------------
|
|
// Lock unencrypted requests from Flash on encrypted pages to mitigate MitM attacks [FF59+]
|
|
// https://bugzilla.mozilla.org/1190623 ***/
|
|
user_pref("security.mixed_content.block_object_subrequest", true);
|
|
// -------------------------------------
|
|
// Enable HTTPS-Only mode [FF76+]
|
|
// When "https_only_mode" (all windows) is true, "https_only_mode_pbm" (private windows only) is ignored
|
|
// [SETTING] to add site exceptions: Page Info>HTTPS-Only mode>On/Off/Off temporarily
|
|
// [SETTING] Privacy & Security>HTTPS-Only Mode
|
|
// [TEST] http://example.com [upgrade]
|
|
// [TEST] http://neverssl.org/ [no upgrade]
|
|
// https://bugzilla.mozilla.org/1613063 [META] ***/
|
|
user_pref("dom.security.https_only_mode", true); // [FF76+]
|
|
user_pref("dom.security.https_only_mode_pbm", true); // [FF80+]
|
|
// -------------------------------------
|
|
// Enable HTTPS-Only mode for local resources [FF77+] ***/
|
|
// user_pref("dom.security.https_only_mode.upgrade_local", true);
|
|
// -------------------------------------
|
|
// Disable HTTP background requests [FF82+]
|
|
// When attempting to upgrade, if the server doesn't respond within 3 seconds, firefox
|
|
// sends HTTP requests in order to check if the server supports HTTPS or not.
|
|
// This is done to avoid waiting for a timeout which takes 90 seconds
|
|
// https://bugzilla.mozilla.org/buglist.cgi?bug_id=1642387,1660945 ***/
|
|
user_pref("dom.security.https_only_mode_send_http_background_request", false);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// CIPHERS [WARNING: do not meddle with your cipher suite]
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Disable 3DES (effective key size < 128 and no PFS)
|
|
// 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);
|
|
// -------------------------------------
|
|
// 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
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// UI (User Interface) ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Display warning on the padlock for "broken security"
|
|
// Bug: warning padlock not indicated for subresources on a secure page!
|
|
// [STATS] SSL Labs (Dec 2020) reports 99.0% 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);
|
|
// -------------------------------------
|
|
// Control "Add Security Exception" dialog on SSL warnings
|
|
// 0=do neither 1=pre-populate url 2=pre-populate url + pre-fetch cert (default)
|
|
// [1] https://github.com/pyllyukko/user.js/issues/210 ***/
|
|
user_pref("browser.ssl_override_behavior", 1);
|
|
// -------------------------------------
|
|
// 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);
|
|
// -------------------------------------
|
|
// Display "insecure" icon and "Not Secure" text on HTTP sites ***/
|
|
// user_pref("security.insecure_connection_icon.enabled", true); // [FF59+] [DEFAULT: true]
|
|
user_pref("security.insecure_connection_text.enabled", true); // [FF60+]
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// FONTS ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// 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, and non-RFP users should use font vis
|
|
// [SETTING] General>Language and Appearance>Fonts & Colors>Advanced>Allow pages to choose... ***/
|
|
user_pref("browser.display.use_document_fonts", 0);
|
|
// -------------------------------------
|
|
// Disable icon fonts (glyphs) and local fallback rendering
|
|
// https://bugzilla.mozilla.org/789788
|
|
// https://gitlab.torproject.org/legacy/trac/-/issues/8455 ***/
|
|
// user_pref("gfx.downloadable_fonts.enabled", false); // [FF41+]
|
|
// user_pref("gfx.downloadable_fonts.fallback_delay", -1);
|
|
// -------------------------------------
|
|
// Disable rendering of SVG OpenType fonts
|
|
// https://wiki.mozilla.org/SVGOpenTypeFonts - iSECPartnersReport recommends to disable this ***/
|
|
user_pref("gfx.font_rendering.opentype_svg.enabled", false);
|
|
// -------------------------------------
|
|
// Disable graphite
|
|
// 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);
|
|
// -------------------------------------
|
|
// Limit system font exposure to a whitelist [FF52+] [RESTART]
|
|
// If the whitelist is empty, then whitelisting is considered disabled and all fonts are allowed
|
|
// [WARNING] **DO NOT USE**: in FF80+ RFP covers this, and non-RFP users should use font vis
|
|
// https://bugzilla.mozilla.org/1121643 ***/
|
|
// user_pref("font.system.whitelist", ""); // [HIDDEN PREF]
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// HEADERS / REFERERS
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// ALL: 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); // [DEFAULT: 2]
|
|
// -------------------------------------
|
|
// ALL: 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); // [DEFAULT: 0]
|
|
// -------------------------------------
|
|
// CROSS ORIGIN: control when to send a referer
|
|
// 0=always (default), 1=only if base domains match, 2=only if hosts match
|
|
// [SETUP-WEB] Known to cause issues with older modems/routers and some sites e.g vimeo, icloud ***/
|
|
user_pref("network.http.referer.XOriginPolicy", 2);
|
|
// -------------------------------------
|
|
// CROSS ORIGIN: control the amount of information to send [FF52+]
|
|
// 0=send full URI (default), 1=scheme+host+port+path, 2=scheme+host+port ***/
|
|
user_pref("network.http.referer.XOriginTrimmingPolicy", 2); // [DEFAULT: 0]
|
|
// -------------------------------------
|
|
// ALL: disable spoofing a referer
|
|
// [WARNING] Do not set this to true, as spoofing effectively disables the anti-CSRF
|
|
// (Cross-Site Request Forgery) protections that some sites may rely on ***/
|
|
// user_pref("network.http.referer.spoofSource", false); // [DEFAULT: false]
|
|
// -------------------------------------
|
|
// ALL: set the default Referrer Policy [FF59+]
|
|
// 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]
|
|
// -------------------------------------
|
|
// TOR: hide (not spoof) referrer when leaving a .onion domain [FF54+]
|
|
// [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);
|
|
// -------------------------------------
|
|
// ALL: enable the DNT (Do Not Track) HTTP header
|
|
// [NOTE] DNT is enforced with Enhanced Tracking Protection regardless of this pref
|
|
// [SETTING] Privacy & Security>Enhanced Tracking Protection>Send websites a "Do Not Track" signal... ***/
|
|
user_pref("privacy.donottrackheader.enabled", false);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// CONTAINERS
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Enable Container Tabs setting in preferences [FF50+]
|
|
// https://bugzilla.mozilla.org/1279029 ***/
|
|
user_pref("privacy.userContext.ui.enabled", true);
|
|
// -------------------------------------
|
|
// Enable Container Tabs [FF50+]
|
|
// [SETTING] General>Tabs>Enable Container Tabs ***/
|
|
user_pref("privacy.userContext.enabled", true);
|
|
// -------------------------------------
|
|
// Set behaviour on "+ Tab" button to display container menu on left click [FF74+]
|
|
// [NOTE] The menu is always shown on long press and right click
|
|
// [SETTING] General>Tabs>Enable Container Tabs>Settings>Select a container for each new tab ***/
|
|
// user_pref("privacy.userContext.newTabContainerOnLeftClick.enabled", true);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// PLUGINS ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Disable Flash plugin
|
|
// 0=deactivated, 1=ask, 2=enabled
|
|
// ESR52.x is the last branch to *fully* support NPAPI, FF52+ stable only supports Flash
|
|
// [NOTE] You can still override individual sites via site permissions ***/
|
|
user_pref("plugin.state.flash", 0);
|
|
// -------------------------------------
|
|
// Disable GMP (Gecko Media Plugins)
|
|
// https://wiki.mozilla.org/GeckoMediaPlugins ***/
|
|
user_pref("media.gmp-provider.enabled", false);
|
|
// -------------------------------------
|
|
// Disable widevine CDM (Content Decryption Module)
|
|
// [SETUP-WEB] if you *need* CDM, e.g. Netflix, Amazon Prime, Hulu, whatever ***/
|
|
user_pref("media.gmp-widevinecdm.visible", false);
|
|
user_pref("media.gmp-widevinecdm.enabled", false);
|
|
user_pref("media.gmp-manager.url", "");
|
|
user_pref("media.gmp-manager.url.override", "");
|
|
// -------------------------------------
|
|
// Disable all DRM content (EME: Encryption Media Extension)
|
|
// [SETUP-WEB] if you *need* EME, e.g. Netflix, Amazon Prime, Hulu, whatever
|
|
// [SETTING] General>DRM Content>Play DRM-controlled content
|
|
// 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);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// MEDIA / CAMERA / MIC ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Disable WebRTC (Web Real-Time Communication)
|
|
// [SETUP-WEB] WebRTC can leak your IP address from behind your VPN, but if this is not
|
|
// in your threat model, and you want Real-Time Communication, this is the pref for you
|
|
// https://www.privacytools.io/#webrtc ***/
|
|
user_pref("media.peerconnection.enabled", false);
|
|
// -------------------------------------
|
|
// Limit WebRTC IP leaks if using WebRTC
|
|
// In FF70+ these settings match Mode 4 (Mode 3 in older versions)
|
|
// [TEST] https://browserleaks.com/webrtc
|
|
// https://bugzilla.mozilla.org/buglist.cgi?bug_id=1189041,1297416,1452713
|
|
// https://wiki.mozilla.org/Media/WebRTC/Privacy
|
|
// https://tools.ietf.org/html/draft-ietf-rtcweb-ip-handling-12#section-5.2 ***/
|
|
user_pref("media.peerconnection.ice.default_address_only", true);
|
|
user_pref("media.peerconnection.ice.no_host", true); // [FF51+]
|
|
user_pref("media.peerconnection.ice.proxy_only_if_behind_proxy", true); // [FF70+]
|
|
user_pref("media.peerconnection.turn.disable", true);
|
|
user_pref("media.peerconnection.use_document_iceservers", false);
|
|
user_pref("media.peerconnection.video.enabled", false);
|
|
user_pref("media.peerconnection.identity.timeout", 1);
|
|
// -------------------------------------
|
|
// Disable WebGL (Web Graphics Library)
|
|
// [SETUP-WEB] When disabled, may break some websites. When enabled, provides high entropy,
|
|
// especially with readPixels(). Some of the other entropy is lessened with RFP
|
|
// https://www.contextis.com/resources/blog/webgl-new-dimension-browser-exploitation/
|
|
// https://security.stackexchange.com/questions/13799/is-webgl-a-security-concern ***/
|
|
user_pref("webgl.disabled", true);
|
|
user_pref("webgl.enable-webgl2", false);
|
|
// -------------------------------------
|
|
// Limit WebGL ***/
|
|
user_pref("webgl.min_capability_mode", true);
|
|
user_pref("webgl.disable-fail-if-major-performance-caveat", true);
|
|
// -------------------------------------
|
|
// Disable screensharing ***/
|
|
user_pref("media.getusermedia.screensharing.enabled", false);
|
|
user_pref("media.getusermedia.browser.enabled", false);
|
|
user_pref("media.getusermedia.audiocapture.enabled", false);
|
|
// -------------------------------------
|
|
// Set a default permission for Camera/Microphone [FF58+]
|
|
// 0=always ask (default), 1=allow, 2=block
|
|
// [SETTING] to add site exceptions: Page Info>Permissions>Use the Camera/Microphone
|
|
// [SETTING] to manage site exceptions: Options>Privacy & Security>Permissions>Camera/Microphone>Settings ***/
|
|
user_pref("permissions.default.camera", 2);
|
|
user_pref("permissions.default.microphone", 2);
|
|
// -------------------------------------
|
|
// Disable autoplay of HTML5 media [FF63+]
|
|
// 0=Allow all, 1=Block non-muted media (default in FF67+), 2=Prompt (removed in FF66), 5=Block all (FF69+)
|
|
// [NOTE] You can set exceptions under site permissions
|
|
// [SETTING] Privacy & Security>Permissions>Autoplay>Settings>Default for all websites ***/
|
|
// user_pref("media.autoplay.default", 5);
|
|
// -------------------------------------
|
|
// Disable autoplay of HTML5 media if you interacted with the site [FF78+]
|
|
// 0=sticky (default), 1=transient, 2=user
|
|
// [NOTE] If you have trouble with some video sites, then add an exception
|
|
// https://support.mozilla.org/questions/1293231 ***/
|
|
user_pref("media.autoplay.blocking_policy", 2);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// WINDOW MEDDLING & LEAKS / POPUPS ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Prevent scripts from moving and resizing open windows ***/
|
|
user_pref("dom.disable_window_move_resize", true);
|
|
// -------------------------------------
|
|
// 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://arkenfox.github.io/TZP/tzp.html#screen
|
|
// 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);
|
|
// -------------------------------------
|
|
// Disable Fullscreen API (requires user interaction) to prevent screen-resolution leaks
|
|
// [NOTE] You can still manually toggle the browser's fullscreen state (F11),
|
|
// but this pref will disable embedded video/game fullscreen controls, e.g. youtube
|
|
// [TEST] https://arkenfox.github.io/TZP/tzp.html#screen ***/
|
|
// user_pref("full-screen-api.enabled", false);
|
|
// -------------------------------------
|
|
// Block popup windows
|
|
// [SETTING] Privacy & Security>Permissions>Block pop-up windows ***/
|
|
user_pref("dom.disable_open_during_load", true);
|
|
// -------------------------------------
|
|
// Limit events that can cause a popup [SETUP-WEB]
|
|
// default is "change click dblclick auxclick mouseup pointerup notificationclick reset submit touchend contextmenu" ***/
|
|
user_pref("dom.popup_allowed_events", "click dblclick");
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// WEB WORKERS
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Disable service workers [FF32, FF44-compat]
|
|
// 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.
|
|
// [SETUP-WEB] Disabling service workers will break some sites. This pref is required true for
|
|
// service worker notifications, push notifications and service worker
|
|
// cache. If you enable this pref, then check those settings as well ***/
|
|
user_pref("dom.serviceWorkers.enabled", false);
|
|
// -------------------------------------
|
|
// 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("dom.webnotifications.enabled", false); // [FF22+]
|
|
// user_pref("dom.webnotifications.serviceworker.enabled", false); // [FF44+]
|
|
// -------------------------------------
|
|
// Disable Push Notifications [FF44+]
|
|
// Push is an API that allows websites to send you (subscribed) messages even when the site
|
|
// isn't loaded, by pushing messages to your userAgentID through Mozilla's Push Server.
|
|
// [NOTE] Push requires service workers to subscribe to and display, and is behind
|
|
// a prompt. Disabling service workers alone doesn't stop Firefox polling the
|
|
// Mozilla Push Server. To remove all subscriptions, reset your userAgentID (in about:config
|
|
// or on start), and you will get a new one within a few seconds.
|
|
// https://support.mozilla.org/en-US/kb/push-notifications-firefox
|
|
// https://developer.mozilla.org/en-US/docs/Web/API/Push_API ***/
|
|
user_pref("dom.push.enabled", false);
|
|
user_pref("dom.push.connection.enabled", false);
|
|
user_pref("dom.push.serverURL", "");
|
|
user_pref("dom.push.userAgentID", "");
|
|
// -------------------------------------
|
|
// Set a default permission for Notifications [FF58+]
|
|
// 0=always ask (default), 1=allow, 2=block
|
|
// [NOTE] Best left at default "always ask", fingerprintable via Permissions API
|
|
// [SETTING] to add site exceptions: Page Info>Permissions>Receive Notifications
|
|
// [SETTING] to manage site exceptions: Options>Privacy & Security>Permissions>Notifications>Settings ***/
|
|
// user_pref("permissions.default.desktop-notification", 2);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// DOM (DOCUMENT OBJECT MODEL) & JAVASCRIPT ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Disable website control over browser right-click context menu
|
|
// [NOTE] Shift-Right-Click will always bring up the browser right-click context menu ***/
|
|
// user_pref("dom.event.contextmenu.enabled", false);
|
|
// -------------------------------------
|
|
// Disable website access to clipboard events/content [SETUP-HARDEN]
|
|
// [NOTE] This will break some sites' functionality e.g. Outlook, Twitter, Facebook, Wordpress
|
|
// This applies to onCut/onCopy/onPaste events - i.e. it requires interaction with the website
|
|
// [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://bugzilla.mozilla.org/1528289 */
|
|
user_pref("dom.event.clipboardevents.enabled", false);
|
|
// -------------------------------------
|
|
// Disable clipboard commands (cut/copy) from "non-privileged" content [FF41+]
|
|
// this disables document.execCommand("cut"/"copy") to protect your clipboard
|
|
// https://bugzilla.mozilla.org/1170911 ***/
|
|
user_pref("dom.allow_cut_copy", false);
|
|
// -------------------------------------
|
|
// 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);
|
|
// -------------------------------------
|
|
// Disable shaking the screen ***/
|
|
user_pref("dom.vibrator.enabled", false);
|
|
// -------------------------------------
|
|
// Disable asm.js [FF22+] [SETUP-PERF]
|
|
// http://asmjs.org/
|
|
// 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);
|
|
// -------------------------------------
|
|
// Disable Ion and baseline JIT to harden against JS exploits [SETUP-HARDEN]
|
|
// [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 (1599226)
|
|
// [WARNING] Disabling Ion/JIT can cause some site issues and performance loss
|
|
// https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-0817 ***/
|
|
// user_pref("javascript.options.ion", false);
|
|
// user_pref("javascript.options.baselinejit", false);
|
|
// user_pref("javascript.options.jit_trustedprincipals", true); // [FF75+] [HIDDEN PREF]
|
|
// -------------------------------------
|
|
// Disable WebAssembly [FF52+] [SETUP-PERF]
|
|
// Vulnerabilities have increasingly been found, including those known and fixed
|
|
// in native programs years ago. WASM has powerful low-level access, making
|
|
// certain attacks (brute-force) and vulnerabilities more possible
|
|
// [STATS] ~0.2% of websites, about half of which are for crytopmining / malvertising
|
|
// https://developer.mozilla.org/docs/WebAssembly
|
|
// https://spectrum.ieee.org/tech-talk/telecom/security/more-worries-over-the-security-of-web-assembly
|
|
// https://www.zdnet.com/article/half-of-the-websites-using-webassembly-use-it-for-malicious-purposes ***/
|
|
user_pref("javascript.options.wasm", false);
|
|
// -------------------------------------
|
|
// Enable (limited but sufficient) window.opener protection [FF65+]
|
|
// 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: true FF79+]
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// HARDWARE FINGERPRINTING ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// 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
|
|
// [NOTE] From FF52+ Battery Status API is only available in chrome/privileged code
|
|
// https://bugzilla.mozilla.org/1313580 ***/
|
|
user_pref("dom.battery.enabled", false);
|
|
// -------------------------------------
|
|
// Disable media device enumeration [FF29+]
|
|
// [NOTE] media.peerconnection.enabled should also be set to false
|
|
// https://wiki.mozilla.org/Media/getUserMedia
|
|
// https://developer.mozilla.org/docs/Web/API/MediaDevices/enumerateDevices ***/
|
|
user_pref("media.navigator.enabled", false);
|
|
// -------------------------------------
|
|
// Disable hardware acceleration to reduce graphics fingerprinting [SETUP-HARDEN]
|
|
// [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
|
|
// [SETTING] General>Performance>Custom>Use hardware acceleration when available
|
|
// https://wiki.mozilla.org/Platform/GFX/HardwareAcceleration ***/
|
|
// user_pref("gfx.direct2d.disabled", true); // [WINDOWS]
|
|
// user_pref("layers.acceleration.disabled", true);
|
|
// -------------------------------------
|
|
// Disable Web Audio API [FF51+]
|
|
// https://bugzilla.mozilla.org/1288359 ***/
|
|
user_pref("dom.webaudio.enabled", false);
|
|
// -------------------------------------
|
|
// Disable Media Capabilities API [FF63+]
|
|
// [WARNING] 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);
|
|
// -------------------------------------
|
|
// Disable virtual reality devices
|
|
// Optional protection depending on your connected devices
|
|
// https://developer.mozilla.org/docs/Web/API/WebVR_API ***/
|
|
// user_pref("dom.vr.enabled", false);
|
|
// -------------------------------------
|
|
// Set a default permission for Virtual Reality [FF73+]
|
|
// 0=always ask (default), 1=allow, 2=block
|
|
// [SETTING] to add site exceptions: Page Info>Permissions>Access Virtual Reality Devices
|
|
// [SETTING] to manage site exceptions: Options>Privacy & Security>Permissions>Virtual Reality>Settings ***/
|
|
// user_pref("permissions.default.xr", 0);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// MISCELLANEOUS ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Prevent accessibility services from accessing your browser [RESTART]
|
|
// [SETTING] Privacy & Security>Permissions>Prevent accessibility services from accessing your browser (FF80 or lower)
|
|
// https://support.mozilla.org/kb/accessibility-services ***/
|
|
user_pref("accessibility.force_disabled", 1);
|
|
// -------------------------------------
|
|
// Disable sending additional analytics to web servers
|
|
// https://developer.mozilla.org/docs/Web/API/Navigator/sendBeacon ***/
|
|
user_pref("beacon.enabled", false);
|
|
// -------------------------------------
|
|
// Rremove temp files opened with an external application
|
|
// https://bugzilla.mozilla.org/302433 ***/
|
|
user_pref("browser.helperApps.deleteTempFileOnExit", true);
|
|
// -------------------------------------
|
|
// 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]
|
|
// -------------------------------------
|
|
// Disable UITour backend so there is no chance that a remote page can use it ***/
|
|
user_pref("browser.uitour.enabled", false);
|
|
user_pref("browser.uitour.url", "");
|
|
// -------------------------------------
|
|
// Disable various developer tools in browser context
|
|
// [SETTING] Devtools>Advanced Settings>Enable browser chrome and add-on debugging toolboxes
|
|
// https://github.com/pyllyukko/user.js/issues/179#issuecomment-246468676 ***/
|
|
user_pref("devtools.chrome.enabled", false);
|
|
// -------------------------------------
|
|
// Reset remote debugging to disabled
|
|
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/16222 ***/
|
|
user_pref("devtools.debugger.remote-enabled", false); // [DEFAULT: false]
|
|
user_pref("devtools.webide.autoinstallADBHelper", false);
|
|
// -------------------------------------
|
|
// Disable MathML (Mathematical Markup Language) [FF51+] [SETUP-HARDEN]
|
|
// [TEST] https://arkenfox.github.io/TZP/tzp.html#misc
|
|
// https://bugzilla.mozilla.org/1173199 ***/
|
|
// user_pref("mathml.disabled", true);
|
|
// -------------------------------------
|
|
// Disable in-content SVG (Scalable Vector Graphics) [FF53+]
|
|
// [WARNING] Expect breakage incl. youtube player controls. Best left for a "hardened" profile.
|
|
// https://bugzilla.mozilla.org/1216893 ***/
|
|
// user_pref("svg.disabled", true);
|
|
// -------------------------------------
|
|
// Disable middle mouse click opening links from clipboard
|
|
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/10089 ***/
|
|
user_pref("middlemouse.contentLoadURL", false);
|
|
// -------------------------------------
|
|
// 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. Default is 20 ***/
|
|
user_pref("network.http.redirection-limit", 10);
|
|
// -------------------------------------
|
|
// Disable websites overriding Firefox's keyboard shortcuts [FF58+]
|
|
// 0 (default) or 1=allow, 2=block
|
|
// [SETTING] to add site exceptions: Page Info>Permissions>Override Keyboard Shortcuts ***/
|
|
// user_pref("permissions.default.shortcuts", 2);
|
|
// -------------------------------------
|
|
// Remove special permissions for certain mozilla domains [FF35+]
|
|
// resource://app/defaults/permissions ***/
|
|
user_pref("permissions.manager.defaultsUrl", "");
|
|
// -------------------------------------
|
|
// Remove webchannel whitelist ***/
|
|
user_pref("webchannel.allowObject.urlWhitelist", "");
|
|
// -------------------------------------
|
|
// Enforce Punycode for Internationalized Domain Names to eliminate possible spoofing
|
|
// Firefox has *some* protections, but it is better to be safe than sorry
|
|
// [SETUP-WEB] Might be undesirable for non-latin alphabet users since legitimate IDN's are also punycoded
|
|
// [TEST] https://www.xn--80ak6aa92e.com/ (www.apple.com)
|
|
// https://wiki.mozilla.org/IDN_Display_Algorithm
|
|
// https://en.wikipedia.org/wiki/IDN_homograph_attack
|
|
// CVE-2017-5383: https://www.mozilla.org/security/advisories/mfsa2017-02/
|
|
// https://www.xudongz.com/blog/2017/idn-phishing/ ***/
|
|
user_pref("network.IDN_show_punycode", true);
|
|
// -------------------------------------
|
|
// Enforce Firefox's built-in PDF reader [SETUP-CHROME]
|
|
// 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)
|
|
// [SETTING] General>Applications>Portable Document Format (PDF) ***/
|
|
user_pref("pdfjs.disabled", false); // [DEFAULT: false]
|
|
// -------------------------------------
|
|
// Disable links launching Windows Store on Windows 8/8.1/10 [WINDOWS] ***/
|
|
user_pref("network.protocol-handler.external.ms-windows-store", false);
|
|
// -------------------------------------
|
|
// Enforce no system colors; they can be fingerprinted
|
|
// [SETTING] General>Language and Appearance>Fonts and Colors>Colors>Use system colors ***/
|
|
user_pref("browser.display.use_system_colors", false); // [DEFAULT: false]
|
|
// -------------------------------------
|
|
// Disable permissions delegation [FF73+]
|
|
// 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);
|
|
// Enable "window.name" protection [FF82+]
|
|
// If a new page from another domain is loaded into a tab, then window.name is set to an empty string. The original
|
|
// string is restored if the tab reverts back to the original page. This change prevents some cross-site attacks ***/
|
|
user_pref("privacy.window.name.update.enabled", true);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// DOWNLOADS ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Discourage downloading to desktop
|
|
// 0=desktop, 1=downloads (default), 2=last used
|
|
// [SETTING] To set your default "downloads": General>Downloads>Save files to ***/
|
|
// user_pref("browser.download.folderList", 2);
|
|
// -------------------------------------
|
|
// Enforce user interaction for security by always asking where to download
|
|
// [SETUP-CHROME] On Android this blocks longtapping and saving images
|
|
// [SETTING] General>Downloads>Always ask you where to save files ***/
|
|
user_pref("browser.download.useDownloadDir", false);
|
|
// -------------------------------------
|
|
// Disable adding downloads to the system's "recent documents" list ***/
|
|
user_pref("browser.download.manager.addToRecentDocs", false);
|
|
// -------------------------------------
|
|
// Disable hiding mime types (Options>General>Applications) not associated with a plugin ***/
|
|
user_pref("browser.download.hide_plugins_without_extensions", false);
|
|
// -------------------------------------
|
|
// 2654: disable "open with" in download dialog [FF50+] [SETUP-HARDEN]
|
|
// 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.
|
|
// [WARNING] This may interfere with some users' workflow or methods
|
|
// https://bugzilla.mozilla.org/1281959 ***/
|
|
// user_pref("browser.download.forbid_open_with", true);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// EXTENSIONS ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Lock down allowed extension directories
|
|
// [SETUP-CHROME] This will break extensions, language packs, themes and any other
|
|
// XPI files which are installed outside of profile and application directories
|
|
// https://mike.kaply.com/2012/02/21/understanding-add-on-scopes/
|
|
// archived: https://archive.is/DYjAM ***/
|
|
user_pref("extensions.enabledScopes", 5); // [HIDDEN PREF]
|
|
user_pref("extensions.autoDisableScopes", 15); // [DEFAULT: 15]
|
|
// -------------------------------------
|
|
// Disable webextension restrictions on certain mozilla domains [FF60+]
|
|
// https://bugzilla.mozilla.org/buglist.cgi?bug_id=1384330,1406795,1415644,1453988 ***/
|
|
// user_pref("extensions.webextensions.restrictedDomains", "");
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// SECURITY ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// 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]
|
|
// -------------------------------------
|
|
// Enforce a security delay on some confirmation dialogs such as install, open/save
|
|
// https://www.squarefree.com/2004/07/01/race-conditions-in-security-dialogs/ ***/
|
|
user_pref("security.dialog_enable_delay", 700);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// PERSISTENT STORAGE
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Disable 3rd-party cookies and site-data [SETUP-WEB]
|
|
// 0=Accept 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] You can set exceptions under site permissions or use an extension
|
|
// [NOTE] Enforcing category to custom ensures ETP related prefs are always honored
|
|
// [SETTING] Privacy & Security>Enhanced Tracking Protection>Custom>Cookies ***/
|
|
user_pref("network.cookie.cookieBehavior", 1);
|
|
user_pref("browser.contentblocking.category", "custom");
|
|
// -------------------------------------
|
|
// Set third-party cookies (i.e ALL) (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); // [FF58+]
|
|
// -------------------------------------
|
|
// Delete cookies and site data on close
|
|
// 0=keep until they expire (default), 2=keep until you close Firefox
|
|
// [NOTE] The setting below is disabled (but not changed) if you block all cookies
|
|
// [SETTING] Privacy & Security>Cookies and Site Data>Delete cookies and site data when Firefox is closed ***/
|
|
user_pref("network.cookie.lifetimePolicy", 2);
|
|
// -------------------------------------
|
|
// 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);
|
|
// -------------------------------------
|
|
// Enforce no offline cache storage (appCache)
|
|
// The API is easily fingerprinted, use the "storage" pref instead ***/
|
|
// user_pref("browser.cache.offline.enable", false);
|
|
user_pref("browser.cache.offline.storage.enable", false); // [FF71+] [DEFAULT: false FF84+]
|
|
// -------------------------------------
|
|
// Disable service worker cache and cache storage
|
|
// [NOTE] We clear service worker cache on exiting Firefox
|
|
// https://w3c.github.io/ServiceWorker/#privacy ***/
|
|
// user_pref("dom.caches.enabled", false);
|
|
// -------------------------------------
|
|
// Disable Storage API [FF51+]
|
|
// 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);
|
|
// -------------------------------------
|
|
// Disable Storage Access API [FF65+]
|
|
// https://developer.mozilla.org/en-US/docs/Web/API/Storage_Access_API ***/
|
|
// user_pref("dom.storage_access.enabled", false);
|
|
// -------------------------------------
|
|
// Enable Local Storage Next Generation (LSNG) [FF65+] ***/
|
|
user_pref("dom.storage.next_gen", true);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// SHUTDOWN
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Enable Firefox to clear items on shutdown
|
|
// [SETTING] Privacy & Security>History>Custom Settings>Clear history when Firefox closes ***/
|
|
user_pref("privacy.sanitize.sanitizeOnShutdown", true);
|
|
// -------------------------------------
|
|
// Set what items to clear on shutdown [SETUP-CHROME]
|
|
// [NOTE] If 'history' is true, downloads will also be cleared regardless of the value
|
|
// but if 'history' is false, downloads can still be cleared independently
|
|
// However, this may not always be the case. The interface combines and syncs these
|
|
// prefs when set from there, and the sanitize code may change at any time
|
|
// [SETTING] Privacy & Security>History>Custom Settings>Clear history when Firefox closes>Settings ***/
|
|
user_pref("privacy.clearOnShutdown.cache", true);
|
|
user_pref("privacy.clearOnShutdown.cookies", true);
|
|
user_pref("privacy.clearOnShutdown.downloads", true); // see note above
|
|
user_pref("privacy.clearOnShutdown.formdata", true); // Form & Search History
|
|
user_pref("privacy.clearOnShutdown.history", true); // Browsing & Download History
|
|
user_pref("privacy.clearOnShutdown.offlineApps", true); // Offline Website Data
|
|
user_pref("privacy.clearOnShutdown.sessions", true); // Active Logins
|
|
user_pref("privacy.clearOnShutdown.siteSettings", true); // Site Preferences
|
|
// -------------------------------------
|
|
// Reset default items to clear with Ctrl-Shift-Del [SETUP-CHROME]
|
|
// This dialog can also be accessed from the menu History>Clear Recent History
|
|
// Firefox remembers your last choices. This will reset them when you start Firefox.
|
|
// [NOTE] Regardless of what you set privacy.cpd.downloads to, as soon as the dialog
|
|
// for "Clear Recent History" is opened, it is synced to the same as 'history' ***/
|
|
user_pref("privacy.cpd.cache", true);
|
|
user_pref("privacy.cpd.cookies", true);
|
|
// user_pref("privacy.cpd.downloads", true); // not used, see note above
|
|
user_pref("privacy.cpd.formdata", true); // Form & Search History
|
|
user_pref("privacy.cpd.history", true); // Browsing & Download History
|
|
user_pref("privacy.cpd.offlineApps", true); // Offline Website Data
|
|
user_pref("privacy.cpd.passwords", false); // this is not listed
|
|
user_pref("privacy.cpd.sessions", true); // Active Logins
|
|
user_pref("privacy.cpd.siteSettings", false); // Site Preferences
|
|
// -------------------------------------
|
|
// Clear Session Restore data when sanitizing on shutdown or manually [FF34+]
|
|
// [NOTE] Not needed if Session Restore is not used or is already cleared with history
|
|
// [NOTE] privacy.clearOnShutdown.openWindows prevents resuming from crashes
|
|
// [NOTE] privacy.cpd.openWindows has a bug that causes an additional window to open ***/
|
|
// user_pref("privacy.clearOnShutdown.openWindows", true);
|
|
// user_pref("privacy.cpd.openWindows", true);
|
|
// -------------------------------------
|
|
// 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);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// FPI (FIRST PARTY ISOLATION)
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Enable First Party Isolation [FF51+]
|
|
// [SETUP-WEB] May break cross-domain logins and site functionality until perfected
|
|
// https://bugzilla.mozilla.org/buglist.cgi?bug_id=1260931,1299996 ***/
|
|
user_pref("privacy.firstparty.isolate", true);
|
|
// -------------------------------------
|
|
// Enforce FPI restriction for window.opener [FF54+]
|
|
// [NOTE] Setting this to false may reduce the breakage
|
|
// 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); // [DEFAULT: true]
|
|
// user_pref("privacy.firstparty.isolate.block_post_message", true);
|
|
// Enable scheme with FPI [FF78+]
|
|
// [NOTE] Experimental: existing data and site permissions are incompatible
|
|
// and some site exceptions may not work e.g. HTTPS-only mode ***/
|
|
// user_pref("privacy.firstparty.isolate.use_site", true);
|
|
// -------------------------------------
|
|
// Enable site partitioning (FF78+)
|
|
// https://bugzilla.mozilla.org/1590107 [META] */
|
|
user_pref("privacy.partition.network_state", true);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// RFP (RESIST FINGERPRINTING)
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Enable privacy.resistFingerprinting [FF41+]
|
|
// This pref is the master switch for all other privacy.resist* prefs unless stated
|
|
// [SETUP-WEB] RFP can cause the odd website to break in strange ways, and has a few side affects,
|
|
// but is largely robust nowadays. Give it a try. Your choice.
|
|
// https://bugzilla.mozilla.org/418986 ***/
|
|
user_pref("privacy.resistFingerprinting", true);
|
|
// -------------------------------------
|
|
// Set new window sizes to round to hundreds [FF55+] [SETUP-CHROME]
|
|
// Width will round down to multiples of 200s and height to 100s, to fit your screen.
|
|
// The override values are a starting point to round from if you want some control
|
|
// https://bugzilla.mozilla.org/1330882 ***/
|
|
// user_pref("privacy.window.maxInnerWidth", 1000);
|
|
// user_pref("privacy.window.maxInnerHeight", 1000);
|
|
// -------------------------------------
|
|
// Disable mozAddonManager Web API [FF57+]
|
|
// [NOTE] As a side-effect in FF57-59 this allowed extensions to work on AMO. In FF60+ 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]
|
|
// -------------------------------------
|
|
// Enable RFP letterboxing [FF67+]
|
|
// Dynamically resizes the inner window by applying margins in stepped ranges
|
|
// 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]
|
|
// user_pref("privacy.resistFingerprinting.letterboxing.dimensions", ""); // [HIDDEN PREF]
|
|
// -------------------------------------
|
|
// Disable showing about:blank as soon as possible during startup [FF60+]
|
|
// When default true this no longer masks the RFP chrome resizing activity
|
|
// https://bugzilla.mozilla.org/1448423 ***/
|
|
user_pref("browser.startup.blankWindow", false);
|
|
// -------------------------------------
|
|
// Disable chrome animations [FF77+] [RESTART]
|
|
// [NOTE] pref added in FF63, but applied to chrome in FF77. RFP spoofs this for web content ***/
|
|
user_pref("ui.prefersReducedMotion", 1); // [HIDDEN PREF]
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// RFP ALTERNATIVES
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// Spoof (or limit?) number of CPU cores [FF48+]
|
|
// [NOTE] *may* affect core chrome/Firefox performance, will affect content.
|
|
// 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);
|
|
// -------------------------------------
|
|
// Disable resource/navigation timing
|
|
user_pref("dom.enable_resource_timing", false);
|
|
// -------------------------------------
|
|
// Disable timing attacks
|
|
// https://wiki.mozilla.org/Security/Reviews/Firefox/NavigationTimingAPI
|
|
user_pref("dom.enable_performance", false);
|
|
// -------------------------------------
|
|
// Disable device sensor API
|
|
// Optional protection depending on your device
|
|
// [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/15758
|
|
// [2] https://blog.lukaszolejnik.com/stealing-sensitive-browser-data-with-the-w3c-ambient-light-sensor-api/
|
|
// [3] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1357733,1292751
|
|
user_pref("device.sensors.enabled", false);
|
|
// -------------------------------------
|
|
// Disable site specific zoom
|
|
// Zoom levels affect screen res and are highly fingerprintable. This does not stop you using
|
|
// zoom, it will just not use/remember any site specific settings. Zoom levels on new tabs
|
|
// and new windows are reset to default and only the current tab retains the current zoom
|
|
user_pref("browser.zoom.siteSpecific", false);
|
|
// -------------------------------------
|
|
// 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);
|
|
// -------------------------------------
|
|
// Disable giving away network info [FF31+]
|
|
// 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 on Android]
|
|
// -------------------------------------
|
|
// 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);
|
|
// -------------------------------------
|
|
// Disable video statistics - JS performance fingerprinting [FF25+]
|
|
// https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/15757
|
|
// https://bugzilla.mozilla.org/654550
|
|
user_pref("media.video_stats.enabled", false);
|
|
// -------------------------------------
|
|
// Disable touch events
|
|
// fingerprinting attack vector - leaks screen res & actual screen coordinates
|
|
// 0=disabled, 1=enabled, 2=autodetect
|
|
// Optional protection depending on your device
|
|
// 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", 0);
|
|
// -------------------------------------
|
|
// Disable MediaDevices change detection [FF51+]
|
|
// https://developer.mozilla.org/docs/Web/Events/devicechange
|
|
// https://developer.mozilla.org/docs/Web/API/MediaDevices/ondevicechange
|
|
user_pref("media.ondevicechange.enabled", false);
|
|
// -------------------------------------
|
|
// 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);
|
|
// -------------------------------------
|
|
// Enforce prefers-reduced-motion as no-preference [FF63+] [RESTART]
|
|
// 0=no-preference, 1=reduce
|
|
user_pref("ui.prefersReducedMotion", 0); // [HIDDEN PREF]
|
|
// -------------------------------------
|
|
// Disable PointerEvents
|
|
// https://developer.mozilla.org/en-US/docs/Web/API/PointerEvent
|
|
user_pref("dom.w3c_pointer_events.enabled", false);
|
|
// -------------------------------------
|
|
// Disable exposure of system colors to CSS or canvas [FF44+]
|
|
// [NOTE] See second listed bug: may cause black on black for elements with undefined colors
|
|
// [SETUP-CHROME] Might affect CSS in themes and extensions
|
|
// https://bugzilla.mozilla.org/buglist.cgi?bug_id=232227,1330876
|
|
user_pref("ui.use_standins_for_native_colors", true);
|
|
// -------------------------------------
|
|
// Enforce prefers-color-scheme as light [FF67+]
|
|
// 0=light, 1=dark : This overrides your OS value
|
|
user_pref("ui.systemUsesDarkTheme", 0); // [HIDDEN PREF]
|
|
// -------------------------------------
|
|
// Limit font visbility (non-ANDROID) [FF79+]
|
|
// Uses hardcoded lists with two parts: kBaseFonts + kLangPackFonts
|
|
// 1=only base system fonts, 2=also fonts from optional language packs, 3=also user-installed fonts
|
|
// [NOTE] Bundled fonts are auto-allowed
|
|
// https://searchfox.org/mozilla-central/search?path=StandardFonts*.inc
|
|
user_pref("layout.css.font-visibility.level", 1);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// RFP ALTERNATIVES (NAVIGATOR / USER AGENT SPOOFING)
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// 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]
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// PERSONAL
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
user_pref("browser.startup.homepage_override.mstone", "ignore"); // master switch
|
|
user_pref("startup.homepage_welcome_url", "");
|
|
user_pref("startup.homepage_welcome_url.additional", "");
|
|
user_pref("startup.homepage_override_url", ""); // What's New page after updates
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// WARNINGS ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
user_pref("browser.tabs.warnOnClose", false);
|
|
user_pref("browser.tabs.warnOnCloseOtherTabs", false);
|
|
user_pref("browser.tabs.warnOnOpen", false);
|
|
user_pref("full-screen-api.warning.delay", 0);
|
|
user_pref("full-screen-api.warning.timeout", 0);
|
|
user_pref("browser.warnOnQuit", false);
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// APPEARANCE ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// user_pref("browser.download.autohideButton", false); // [FF57+]
|
|
// user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true); // [FF68+] allow userChrome/userContent
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// CONTENT BEHAVIOR ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
user_pref("accessibility.typeaheadfind", false); // enable "Find As You Type"
|
|
user_pref("clipboard.autocopy", false); // disable autocopy default [LINUX]
|
|
user_pref("layout.spellcheckDefault", 0); // 0=none, 1-multi-line, 2=multi-line & single-line
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// UX BEHAVIOR ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// user_pref("browser.backspace_action", 2); // 0=previous page, 1=scroll up, 2=do nothing
|
|
// user_pref("browser.tabs.closeWindowWithLastTab", false);
|
|
// user_pref("browser.tabs.loadBookmarksInTabs", true); // open bookmarks in a new tab [FF57+]
|
|
// user_pref("browser.urlbar.decodeURLsOnCopy", true); // see bugzilla 1320061 [FF53+]
|
|
// user_pref("general.autoScroll", false); // middle-click enabling auto-scrolling [DEFAULT: false on Linux]
|
|
// user_pref("ui.key.menuAccessKey", 0); // disable alt key toggling the menu bar [RESTART]
|
|
// user_pref("view_source.tab", false); // view "page/selection source" in a new window [FF68+, FF59 and under]
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// UX FEATURES: Disable and hide the icons and menus ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
user_pref("browser.messaging-system.whatsNewPanel.enabled", false); // What's New [FF69+]
|
|
user_pref("messaging-system.rsexperimentloader.enabled", false);
|
|
user_pref("extensions.pocket.enabled", false); // Pocket Account [FF46+]
|
|
user_pref("identity.fxaccounts.enabled", false); // Firefox Accounts & Sync [FF60+] [RESTART]
|
|
user_pref("reader.parse-on-load.enabled", false); // Reader View
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// OTHER ***/
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// user_pref("browser.bookmarks.max_backups", 2);
|
|
user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons", false); // disable CFR [FF67+]
|
|
user_pref("browser.newtabpage.activity-stream.improvesearch.topSiteSearchShortcuts.searchEngines" "");
|
|
// [SETTING] General>Browsing>Recommend extensions as you browse
|
|
user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features", false); // disable CFR [FF67+]
|
|
// [SETTING] General>Browsing>Recommend features as you browse
|
|
user_pref("network.manage-offline-status", false); // see bugzilla 620472
|
|
// user_pref("xpinstall.signatures.required", false); // enforced extension signing (Nightly/ESR)
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// DEPRECATED / REMOVED / LEGACY / RENAMED
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
// ESR78.x still uses all the following prefs
|
|
// [NOTE] replace the * with a slash in the line above to re-enable them
|
|
// FF79
|
|
// 0212: 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
|
|
// 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", "");
|
|
// >>>>>>>>>>>>>>>>>>>>>
|
|
//
|