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//
// **********************************************************************************
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// user.js | Firefox
//
// https://git.nixnet.xyz/Narsil/desktop_user.js
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// **********************************************************************************
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//
// 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 ***/
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user _pref ( "general.warnOnAboutConfig" , false ) ; // XHTML version
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user _pref ( "browser.aboutConfig.showWarning" , false ) ; // HTML version [FF71+]
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// -------------------------------------
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// Disable separate about:welcome page
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// https://bugzilla.mozilla.org/show_bug.cgi?id=1617783
user _pref ( "browser.aboutwelcome.enabled" , false ) ;
user _pref ( "trailhead.firstrun.branches" , "" ) ;
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// -------------------------------------
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// Disable default browser check
// [SETTING] General>Startup>Always check if Firefox is your default browser ***/
user _pref ( "browser.shell.checkDefaultBrowser" , false ) ;
// -------------------------------------
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// Set START page
// 0=blank, 1=home, 2=last visited page, 3=resume previous session
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// [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 ) ;
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user _pref ( "browser.newtabpage.activity-stream.feeds.favicon" , false ) ;
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user _pref ( "browser.newtabpage.activity-stream.discoverystream.enabled" , false ) ;
user _pref ( "browser.newtabpage.activity-stream.discoverystream.endpoints" , "" ) ;
user _pref ( "browser.newtabpage.activity-stream.telemetry.structuredIngestion.endpoint" , "" ) ;
user _pref ( "browser.newtabpage.activity-stream.improvesearch.topSiteSearchShortcuts.havePinned" , "" ) ;
user _pref ( "browser.newtabpage.activity-stream.fxaccounts.endpoint" , "" ) ;
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// -------------------------------------
// 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/ ***/
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user _pref ( "browser.newtabpage.activity-stream.feeds.snippets" , false ) ; // [DEFAULT: false FF89+]
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user _pref ( "browser.newtabpage.activity-stream.asrouter.providers.snippets" , "" ) ;
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// -------------------------------------
// 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+]
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user _pref ( "browser.newtabpage.activity-stream.showSponsoredTopSites" , false ) ; // [FF83+]
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// -------------------------------------
// 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);
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//
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// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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// GEOLOCATION ***/
// >>>>>>>>>>>>>>>>>>>>>
// Disable Location-Aware Browsing
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// [NOTE] Best left at default "true", fingerprintable, already behind a prompt
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// https://www.mozilla.org/firefox/geolocation/ ***/
user _pref ( "geo.enabled" , false ) ;
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user _pref ( "browser.search.geoip.url" , "" ) ; // [HIDDEN PREF]
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// -------------------------------------
// 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
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// [SETTING] to add site exceptions: Ctrl+I>Permissions>Access Your Location
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// [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]
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//
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// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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// LANGUAGE / LOCALE ***/
// >>>>>>>>>>>>>>>>>>>>>
// Set preferred language for displaying web pages
// https://addons.mozilla.org/about ***/
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user _pref ( "intl.accept_languages" , "en-US, en" ) ;
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// -------------------------------------
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// Use US English locale regardless of the system locale
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// [SETUP-WEB] May break some input methods e.g xim/ibus for CJK languages
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// https://bugzilla.mozilla.org/buglist.cgi?bug_id=867501,1629630 ***/
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user _pref ( "javascript.use_us_english_locale" , true ) ; // [HIDDEN PREF]
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user _pref ( "intl.locale.requested" , "en-US" ) ;
user _pref ( "privacy.spoof_english" , 2 ) ;
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//
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// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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// 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 ) ;
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user _pref ( "app.update.staging.enabled" , false ) ;
// -------------------------------------
// Disable add-on and certificate blocklists (OneCRL) from Mozilla
user _pref ( "extensions.blocklist.enabled" , false ) ;
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user _pref ( "extensions.blocklist.detailsURL" , "" ) ;
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user _pref ( "extensions.blocklist.url" , "" ) ;
user _pref ( "services.blocklist.addons.collection" , "" ) ;
user _pref ( "services.blocklist.plugins.collection" , "" ) ;
user _pref ( "services.blocklist.pinning.collection" , "" ) ;
user _pref ( "services.blocklist.gfx.collection" , "" ) ;
user _pref ( "extensions.blocklist.itemURL" , "" ) ;
user _pref ( "services.settings.security.onecrl.bucket" , "" ) ;
user _pref ( "services.settings.security.onecrl.collection" , "" ) ;
user _pref ( "services.settings.security.onecrl.signer" , "" ) ;
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// -------------------------------------
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// Disable auto-INSTALLING Firefox updates via a background service [FF90+] [WINDOWS]
// [SETTING] General>Firefox Updates>Automatically install updates>When Firefox is not running
// https://support.mozilla.org/kb/enable-background-updates-firefox-windows ***/
user _pref ( "app.update.background.scheduling.enabled" , false ) ;
// -------------------------------------
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// 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 ) ;
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user _pref ( "extensions.update.background.url" , "" ) ;
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// -------------------------------------
// 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 ) ;
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user _pref ( "extensions.getAddons.discovery.api_url" , "" ) ;
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// ------------------------------------
// 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 about:addons' Recommendations pane (uses Google Analytics) ***/
user _pref ( "extensions.getAddons.showPane" , false ) ; // [HIDDEN PREF]
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// -------------------------------------
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// 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 ) ;
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user _pref ( "toolkit.telemetry.server" , "" ) ;
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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+]
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user _pref ( "toolkit.crashreporter.infoURL" , "" ) ;
user _pref ( "security.protectionspopup.recordEventTelemetry" , false ) ;
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// -------------------------------------
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// Disable collect Telemetry on tracking resources traffic.
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// 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
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user _pref ( "network.traffic_analyzer.enabled" , false ) ;
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// -------------------------------------
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// 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" , "" ) ;
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user _pref ( "toolkit.coverage.enabled" , false ) ;
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// -------------------------------------
// 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 ) ;
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user _pref ( "datareporting.policy.firstRunURL" , "" ) ;
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// -------------------------------------
// 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 ) ;
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user _pref ( "browser.discovery.containers.enabled" , false ) ;
user _pref ( "browser.discovery.sites" , "" ) ;
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// -------------------------------------
// Disable Crash Reports ***/
user _pref ( "breakpad.reportURL" , "" ) ;
user _pref ( "browser.tabs.crashReporting.sendReport" , false ) ; // [FF44+]
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user _pref ( "browser.crashReports.unsubmittedCheck.enabled" , false ) ; // [FF51+] [DEFAULT: false]
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// -------------------------------------
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// Enforce no submission of backlogged Crash Reports [FF58+]
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// [SETTING] Privacy & Security>Firefox Data Collection & Use>Allow Firefox to send backlogged crash reports ***/
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user _pref ( "browser.crashReports.unsubmittedCheck.autoSubmit2" , false ) ; // [DEFAULT: false]
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// -------------------------------------
// 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 ) ;
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user _pref ( "network.connectivity-service.IPv6.url" , "http://0.0.0.0" ) ;
user _pref ( "network.connectivity-service.IPv4.url" , "http://0.0.0.0" ) ;
user _pref ( "network.connectivity-service.DNSv6.domain" , "" ) ;
user _pref ( "network.connectivity-service.DNSv4.domain" , "" ) ;
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// -------------------------------------
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// Disable contentblocking reports
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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" , "" ) ;
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user _pref ( "browser.contentblocking.report.vpn.enabled" , false ) ;
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// -------------------------------------
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// Disable lockwise app callout to the ETP card
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// 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" , "" ) ;
// -------------------------------------
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// Disable send content blocking log to about:protections
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// https://bugzilla.mozilla.org/show_bug.cgi?id=1549832
user _pref ( "browser.contentblocking.database.enabled" , false ) ;
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user _pref ( "browser.contentblocking.cryptomining.preferences.ui.enabled" , false ) ;
user _pref ( "browser.contentblocking.fingerprinting.preferences.ui.enabled" , false ) ;
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// -------------------------------------
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// Disable celebrating milestone toast when certain numbers of trackers are blocked
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user _pref ( "browser.contentblocking.cfr-milestone.enabled" , false ) ;
// Pref : Disable check default browser on first run
user _pref ( "browser.shell.didSkipDefaultBrowserCheckOnFirstRun" , true ) ;
// -------------------------------------
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// Disable WebVTT logging and test events
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// 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 ) ;
// -------------------------------------
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// Disable Corroborate.jsm telemetry
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// https://bugzilla.mozilla.org/show_bug.cgi?id=1608308
user _pref ( "corroborator.enabled" , false ) ;
// -------------------------------------
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// Block unwanted connections
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user _pref ( "app.feedback.baseURL" , "" ) ;
user _pref ( "app.support.baseURL" , "" ) ;
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user _pref ( "app.update.service.enabled" , false ) ;
// -------------------------------------
// Manage other urls and handlers
user _pref ( "media.decoder-doctor.new-issue-endpoint" , "" ) ;
user _pref ( "identity.sync.tokenserver.uri" , "" ) ;
user _pref ( "browser.translation.engine" , "" ) ;
user _pref ( "gecko.handlerService.schemes.mailto.0.uriTemplate" , "" ) ;
user _pref ( "gecko.handlerService.schemes.mailto.0.name" , "" ) ;
user _pref ( "gecko.handlerService.schemes.mailto.1.uriTemplate" , "" ) ;
user _pref ( "gecko.handlerService.schemes.mailto.1.name" , "" ) ;
user _pref ( "gecko.handlerService.schemes.irc.0.uriTemplate" , "" ) ;
user _pref ( "gecko.handlerService.schemes.irc.0.name" , "" ) ;
user _pref ( "gecko.handlerService.schemes.ircs.0.uriTemplate" , "" ) ;
user _pref ( "gecko.handlerService.schemes.ircs.0.name" , "" ) ;
user _pref ( "browser.uitour.themeOrigin" , "" ) ;
user _pref ( "toolkit.datacollection.infoURL" , "" ) ;
user _pref ( "identity.mobilepromo.android" , "" ) ;
user _pref ( "identity.mobilepromo.ios" , "" ) ;
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// -------------------------------------
2020-11-28 15:32:47 +00:00
// Disable report browser errors to Mozilla
2020-10-25 14:40:30 +00:00
// https://bugzilla.mozilla.org/show_bug.cgi?id=1426482
user _pref ( "browser.chrome.errorReporter.infoURL" , "" ) ;
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// -------------------------------------
// Disable tracking protection
// [NOTE] uBlock is far superior and you can customize the lists as you wish
// https://m.wiki.mozilla.org/Security/Tracking_protection#Lists
user _pref ( "privacy.trackingprotection.origin_telemetry.enabled" , false ) ;
user _pref ( "privacy.trackingprotection.annotate_channels" , false ) ;
user _pref ( "privacy.trackingprotection.lower_network_priority" , false ) ;
user _pref ( "privacy.trackingprotection.enabled" , false ) ;
user _pref ( "privacy.trackingprotection.pbmode.enabled" , false ) ;
user _pref ( "privacy.trackingprotection.cryptomining.enabled" , false ) ;
user _pref ( "privacy.trackingprotection.fingerprinting.enabled" , false ) ;
user _pref ( "privacy.trackingprotection.socialtracking.enabled" , false ) ;
user _pref ( "privacy.trackingprotection.testing.report_blocked_node" , false ) ;
user _pref ( "privacy.socialtracking.block_cookies.enabled" , false ) ;
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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 ) ;
2021-02-23 16:27:15 +00:00
user _pref ( "browser.safebrowsing.passwords.enabled" , false ) ;
2020-10-20 20:53:52 +00:00
// -------------------------------------
// 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 ) ;
// -------------------------------------
2020-12-07 18:32:45 +00:00
// Disable 'ignore this warning' on SB warnings [FF45+]
2020-10-20 20:53:52 +00:00
// 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" , "" ) ;
2021-01-27 14:10:00 +00:00
user _pref ( "browser.safebrowsing.provider.google.advisoryURL" , "" ) ;
2020-10-20 20:53:52 +00:00
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" , "" ) ;
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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" , "" ) ;
2021-05-27 08:16:50 +00:00
user _pref ( "app.normandy.user_id" , "" ) ;
2020-10-20 20:53:52 +00:00
// -------------------------------------
// 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+]
2020-11-14 10:43:23 +00:00
user _pref ( "extensions.formautofill.creditCards.available" , false ) ; // [FF57+]
2020-10-20 20:53:52 +00:00
user _pref ( "extensions.formautofill.heuristics.enabled" , false ) ; // [FF55+]
2021-01-27 14:10:00 +00:00
user _pref ( "extensions.formautofill.section.enabledScopes" , false ) ;
2020-10-20 20:53:52 +00:00
// -------------------------------------
2021-03-19 19:11:08 +00:00
// Enforce disabling of Web Compatibility Reporter [FF56+]
2020-10-20 20:53:52 +00:00
// Web Compatibility Reporter adds a "Report Site Issue" button to send data to Mozilla ***/
2021-03-15 11:10:22 +00:00
user _pref ( "extensions.webcompat-reporter.enabled" , false ) ; // [DEFAULT: false]
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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 ) ;
2021-04-03 21:14:07 +00:00
// user_pref("network.dns.disablePrefetchFromHTTPS", true); // [DEFAULT: true]
2020-10-20 20:53:52 +00:00
// -------------------------------------
// Disable predictor / prefetching ***/
user _pref ( "network.predictor.enabled" , false ) ;
2021-04-03 21:14:07 +00:00
// user_pref("network.predictor.enable-prefetch", false); // [FF48+]
2020-10-20 20:53:52 +00:00
// -------------------------------------
// 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/ ***/
2021-04-03 21:14:07 +00:00
// user_pref("browser.send_pings", false); // [DEFAULT: false]
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// HTTP* / TCP/IP / DNS / PROXY / SOCKS etc ***/
// >>>>>>>>>>>>>>>>>>>>>
// Disable IPv6
2020-12-08 11:36:06 +00:00
// IPv6 can be abused, especially with MAC addresses, and can leak with VPNs. That's even
// assuming your ISP and/or router and/or website can handle it. Sites will fall back to IPv4
2021-08-07 09:46:02 +00:00
// [STATS] Firefox telemetry (July 2021) shows ~10% of all connections are IPv6
2020-10-20 20:53:52 +00:00
// [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.
2020-10-26 18:46:36 +00:00
// [NOTE] PHP defaults to IPv6 with "localhost". Use "php -S 127.0.0.1:PORT"
2020-10-20 20:53:52 +00:00
// [TEST] https://ipleak.org/
2020-12-08 11:36:06 +00:00
// https://www.internetsociety.org/tag/ipv6-security/
2020-10-20 20:53:52 +00:00
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.
2021-04-07 12:44:58 +00:00
// [WARNING] Don't disable HTTP2. Don't be that one person using HTTP1.1 on HTTP2 sites
2021-08-07 09:46:02 +00:00
// [STATS] ~46% of sites (July 2021)
2020-10-20 20:53:52 +00:00
// 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 ) ;
// -------------------------------------
2021-07-21 07:30:27 +00:00
// Set the proxy server to do any DNS lookups when using SOCKS
2020-10-20 20:53:52 +00:00
// 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 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
2021-05-27 08:16:50 +00:00
user _pref ( "network.trr.mode" , 5 ) ;
2020-10-20 20:53:52 +00:00
user _pref ( "network.trr.uri" , "" ) ;
2021-05-27 08:16:50 +00:00
user _pref ( "network.trr.confirmationNS" , "" ) ;
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// LOCATION BAR / SEARCH BAR / SUGGESTIONS / HISTORY / FORMS
2020-12-09 10:14:25 +00:00
// >>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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 ) ;
// -------------------------------------
2021-02-28 19:27:43 +00:00
// Disable coloring of visited links - CSS history leak
// Bulk rapid history sniffing was mitigated in 2010. Slower and more expensive
// redraw timing attacks were largely mitigated in FF77+. Using RFP further hampers timing
// attacks. Don't forget clearing history on close. However, social engineering
// and advanced targeted timing attacks could still produce usable results
// https://developer.mozilla.org/docs/Web/CSS/Privacy_and_the_:visited_selector
// https://dbaron.org/mozilla/visited-privacy
// https://bugzilla.mozilla.org/1632765
// https://earthlng.github.io/testpages/visited_links.html (see github wiki APPENDIX A on how to use)
// https://lcamtuf.blogspot.com/2016/08/css-mix-blend-mode-is-bad-for-keeping.html ***/
user _pref ( "layout.css.visited_links_enabled" , false ) ;
// -------------------------------------
2020-10-20 20:53:52 +00:00
// 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+]
2020-12-19 16:26:25 +00:00
user _pref ( "browser.urlbar.suggest.engines" , false ) ; // [FF85+]
2020-10-20 20:53:52 +00:00
// -------------------------------------
// Disable location bar dropdown
// This value controls the total number of entries to appear in the location bar dropdown
// user_pref("browser.urlbar.maxRichResults", 0);
// -------------------------------------
// Disable location bar autofill
2021-07-25 09:43:17 +00:00
// https://support.mozilla.org/kb/address-bar-autocomplete-firefox#w_url-autocomplete ***/
2020-10-20 20:53:52 +00:00
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] ***/
2021-03-10 10:16:57 +00:00
user _pref ( "browser.taskbar.previews.enable" , false ) ; // [DEFAULT: false]
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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 ) ;
2021-07-10 18:04:34 +00:00
// -------------------------------------
2021-08-07 09:46:02 +00:00
// Disable automatic authentication on Microsoft sites [FF91+] [WINDOWS 10+]
// [SETTING] Privacy & Security>Logins and Passwords>Allow Windows single sign-on for...
// https://support.mozilla.org/kb/windows-sso ***/
2021-07-10 18:04:34 +00:00
user _pref ( "network.http.windows-sso.enabled" , false ) ;
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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 ) ;
2021-02-25 09:33:46 +00:00
// -------------------------------------
// Network Partitioning
// Network Partitioning will allow Firefox to save resources like the cache, favicons, CSS files, images, and more
// on a per-website basis rather than together in the same pool.
// https://www.zdnet.com/article/firefox-to-ship-network-partitioning-as-a-new-anti-tracking-defense/
// https://github.com/privacycg/storage-partitioning#introduction
// https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Privacy/State_Partitioning
// https://blog.mozilla.org/security/2021/01/26/supercookie-protections/
user _pref ( "privacy.partition.network_state" , true ) ; // [DEFAULT: true]
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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]
2021-08-03 15:03:42 +00:00
// define on which sites to save extra session data such as form content, cookies and POST data
2020-10-20 20:53:52 +00:00
// 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 ) ;
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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]
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// SSL (Secure Sockets Layer) / TLS (Transport Layer Security) ***/
// >>>>>>>>>>>>>>>>>>>>>
// Require safe negotiation
2021-01-27 14:10:00 +00:00
// Blocks connections (SSL_ERROR_UNSAFE_NEGOTIATION) to servers that don't support RFC 5746
// as they're potentially vulnerable to a MiTM attack [3]. 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
2020-10-20 20:53:52 +00:00
// 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);
// -------------------------------------
2021-07-25 09:43:17 +00:00
// Enforce TLS 1.0 and 1.1 downgrades as session only ***/
user _pref ( "security.tls.version.enable-deprecated" , false ) ; // [DEFAULT: false]
// -------------------------------------
2020-10-20 20:53:52 +00:00
// Disable SSL session tracking [FF36+]
2021-02-25 09:09:54 +00:00
// SSL Session IDs are unique and last up to 24hrs in Firefox (or longer with prolongation attacks)
// These are not used in PB mode. In normal windows they are isolated when using FPI
// and/or containers. In FF85+ they are isolated by default (privacy.partition.network_state)
// [WARNING] There are perf and passive fingerprinting costs, for little to no gain. Preventing
// tracking via this method does not address IPs, nor handle any sanitizing of current identifiers
2020-10-20 20:53:52 +00:00
// 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 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 ) ;
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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 ) ;
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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]
// -------------------------------------
2021-07-21 07:30:27 +00:00
// Enable strict pinning
2020-10-20 20:53:52 +00:00
// 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 ) ;
2021-07-21 07:30:27 +00:00
// -------------------------------------
// Disable CRLite [FF73+]
// In FF84+ it covers valid certs and in mode 2 doesn't fall back to OCSP
// https://bugzilla.mozilla.org/buglist.cgi?bug_id=1429800,1670985
// https://blog.mozilla.org/security/tag/crlite/ ***/
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" , 0 ) ;
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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 ) ;
// -------------------------------------
// Enable HTTPS-Only mode [FF76+]
// When "https_only_mode" (all windows) is true, "https_only_mode_pbm" (private windows only) is ignored
2021-02-25 09:09:54 +00:00
// [SETTING] to add site exceptions: Ctrl+I>HTTPS-Only mode>On/Off/Off temporarily
2020-11-14 17:17:00 +00:00
// [SETTING] Privacy & Security>HTTPS-Only Mode
2020-11-25 11:04:21 +00:00
// [TEST] http://example.com [upgrade]
// [TEST] http://neverssl.org/ [no upgrade]
2020-12-07 18:32:45 +00:00
// https://bugzilla.mozilla.org/1613063 [META] ***/
2020-10-20 20:53:52 +00:00
user _pref ( "dom.security.https_only_mode" , true ) ; // [FF76+]
user _pref ( "dom.security.https_only_mode_pbm" , true ) ; // [FF80+]
2020-11-25 11:04:21 +00:00
// -------------------------------------
// 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
2020-11-25 11:12:37 +00:00
// sends HTTP requests in order to check if the server supports HTTPS or not.
2020-11-25 11:04:21 +00:00
// 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 ) ;
2021-04-04 17:52:59 +00:00
// -------------------------------------
// Treat .onion as a secure context [FF60+] [TOR]
// [NOTE] Firefox cannot access .onion sites by default: it is strongly recommended you just use Tor Browser
// https://bugzilla.mozilla.org/1382359 ***/
// user_pref("dom.securecontext.whitelist_onions", true);
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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);
2021-06-26 17:06:14 +00:00
// user_pref("security.ssl3.rsa_aes_128_gcm_sha256", false); // no PFS
// user_pref("security.ssl3.rsa_aes_256_gcm_sha384", false); // no PFS
2020-10-20 20:53:52 +00:00
// user_pref("security.ssl3.rsa_aes_128_sha", false); // no PFS
// user_pref("security.ssl3.rsa_aes_256_sha", false); // no PFS
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// UI (User Interface) ***/
// >>>>>>>>>>>>>>>>>>>>>
// Display warning on the padlock for "broken security"
// Bug: warning padlock not indicated for subresources on a secure page!
2021-08-07 09:46:02 +00:00
// [STATS] SSL Labs (July 2021) reports over 99% of sites have secure renegotiation
2020-10-20 20:53:52 +00:00
// 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+]
2021-05-27 08:16:50 +00:00
user _pref ( "security.insecure_connection_text.pbmode.enabled" , true ) ;
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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
2021-07-10 18:04:34 +00:00
// [WARNING] DO NOT USE: in FF80+ RFP covers this, and non-RFP users should use font vis
2020-10-20 20:53:52 +00:00
// [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
2021-07-10 18:04:34 +00:00
// [WARNING] DO NOT USE: in FF80+ RFP covers this, and non-RFP users should use font vis
2020-10-20 20:53:52 +00:00
// https://bugzilla.mozilla.org/1121643 ***/
// user_pref("font.system.whitelist", ""); // [HIDDEN PREF]
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// HEADERS / REFERERS
// >>>>>>>>>>>>>>>>>>>>>
2020-12-12 12:03:32 +00:00
// Control when images/links send a referer
2020-10-20 20:53:52 +00:00
// 0=never, 1=send only when links are clicked, 2=for links and images (default) ***/
2020-12-27 11:00:45 +00:00
// user_pref("network.http.sendRefererHeader", 2);
2020-10-20 20:53:52 +00:00
// -------------------------------------
2020-12-12 12:03:32 +00:00
// Control the amount of information to send
2020-10-20 20:53:52 +00:00
// 0=send full URI (default), 1=scheme+host+port+path, 2=scheme+host+port ***/
2020-12-27 11:03:10 +00:00
// user_pref("network.http.referer.trimmingPolicy", 0);
2020-10-20 20:53:52 +00:00
// -------------------------------------
2020-12-12 12:03:32 +00:00
// Control when to send a referer
2020-10-20 20:53:52 +00:00
// 0=always (default), 1=only if base domains match, 2=only if hosts match
2021-06-07 09:25:05 +00:00
// [SETUP-WEB] Known to cause issues with older modems/routers and some sites e.g vimeo, icloud, instagram
2020-10-20 20:53:52 +00:00
user _pref ( "network.http.referer.XOriginPolicy" , 2 ) ;
// -------------------------------------
2020-12-12 12:03:32 +00:00
// Control the amount of information to send [FF52+]
2020-10-20 20:53:52 +00:00
// 0=send full URI (default), 1=scheme+host+port+path, 2=scheme+host+port ***/
2020-12-27 11:00:45 +00:00
user _pref ( "network.http.referer.XOriginTrimmingPolicy" , 2 ) ;
2020-10-20 20:53:52 +00:00
// -------------------------------------
2020-12-12 12:03:32 +00:00
// Disable spoofing a referer
2020-10-20 20:53:52 +00:00
// [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]
// -------------------------------------
2020-12-12 12:03:32 +00:00
// Set the default Referrer Policy [FF59+]
2020-10-20 20:53:52 +00:00
// 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
2021-03-28 10:09:56 +00:00
// https://blog.mozilla.org/security/2018/01/31/preventing-data-leaks-by-stripping-path-information-in-http-referrers/
// https://blog.mozilla.org/security/2021/03/22/firefox-87-trims-http-referrers-by-default-to-protect-user-privacy/
// user_pref("network.http.referer.defaultPolicy", 2); // [DEFAULT: 2 FF87+]
2020-10-20 20:53:52 +00:00
// user_pref("network.http.referer.defaultPolicy.pbmode", 2); // [DEFAULT: 2]
// -------------------------------------
2021-04-04 17:52:59 +00:00
// Hide (not spoof) referrer when leaving a .onion domain [FF54+] [TOR]
// [NOTE] Firefox cannot access .onion sites by default: it is strongly recommended you just use Tor Browser
2020-10-20 20:53:52 +00:00
// https://bugzilla.mozilla.org/1305144 ***/
2021-03-28 10:09:56 +00:00
// user_pref("network.http.referer.hideOnionSource", true);
2020-10-20 20:53:52 +00:00
// -------------------------------------
2020-12-12 12:03:32 +00:00
// Enable the DNT (Do Not Track) HTTP header
2020-10-20 20:53:52 +00:00
// [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 ) ;
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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);
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// PLUGINS ***/
// >>>>>>>>>>>>>>>>>>>>>
// Disable GMP (Gecko Media Plugins)
// https://wiki.mozilla.org/GeckoMediaPlugins ***/
user _pref ( "media.gmp-provider.enabled" , false ) ;
// -------------------------------------
2021-01-28 19:03:32 +00:00
// Disable downloading OpenH264 codec at the first start of Firefox
user _pref ( "media.gmp-gmpopenh264.enabled" , false ) ;
// -------------------------------------
2020-10-20 20:53:52 +00:00
// Disable widevine CDM (Content Decryption Module)
2021-02-28 19:27:43 +00:00
// [SETUP-WEB] e.g. Netflix, Amazon Prime, Hulu, HBO, Disney+, Showtime, Starz, DirectTV
2020-10-20 20:53:52 +00:00
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)
2021-02-28 19:27:43 +00:00
// [SETUP-WEB] e.g. Netflix, Amazon Prime, Hulu, HBO, Disney+, Showtime, Starz, DirectTV
2020-10-20 20:53:52 +00:00
// [SETTING] General>DRM Content>Play DRM-controlled content
2021-04-04 17:52:59 +00:00
// [TEST] https://bitmovin.com/demos/drm
2020-10-20 20:53:52 +00:00
// 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 ) ;
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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+]
// -------------------------------------
// 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
2021-02-25 09:09:54 +00:00
// [SETTING] to add site exceptions: Ctrl+I>Permissions>Use the Camera/Microphone
2020-10-20 20:53:52 +00:00
// [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
2020-10-24 10:09:39 +00:00
// https://support.mozilla.org/questions/1293231 ***/
2020-10-20 20:53:52 +00:00
user _pref ( "media.autoplay.blocking_policy" , 2 ) ;
2021-02-21 11:03:11 +00:00
// -------------------------------------
// Pref : Disable showing avif images
// user_pref("image.avif.enabled", false);
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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]
2021-02-19 09:40:38 +00:00
// default FF86+: "change click dblclick auxclick mousedown mouseup pointerdown pointerup notificationclick reset submit touchend contextmenu" ***/
user _pref ( "dom.popup_allowed_events" , "click dblclick mousedown pointerdown" ) ;
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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 ***/
2021-02-01 11:18:53 +00:00
user _pref ( "dom.webnotifications.enabled" , false ) ; // [FF22+]
2020-10-20 20:53:52 +00:00
// 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.
2021-07-25 09:43:17 +00:00
// https://support.mozilla.org/kb/push-notifications-firefox
// https://developer.mozilla.org/docs/Web/API/Push_API ***/
2020-10-20 20:53:52 +00:00
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
2021-02-25 09:09:54 +00:00
// [SETTING] to add site exceptions: Ctrl+I>Permissions>Receive Notifications
2020-10-20 20:53:52 +00:00
// [SETTING] to manage site exceptions: Options>Privacy & Security>Permissions>Notifications>Settings ***/
// user_pref("permissions.default.desktop-notification", 2);
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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
2021-04-04 17:52:59 +00:00
// [WARNING] In FF88 or lower, with clipboardevents enabled, if both 'middlemouse.paste' and
// 'general.autoScroll' are true (at least one is default false) then the clipboard can leak
2021-03-10 10:16:57 +00:00
// https://bugzilla.mozilla.org/1528289
2020-10-20 20:53:52 +00:00
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 ) ;
// -------------------------------------
2020-11-28 15:32:47 +00:00
// Disable asm.js [FF22+] [SETUP-PERF]
2020-10-20 20:53:52 +00:00
// 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 ***/
2021-08-07 09:46:02 +00:00
user _pref ( "javascript.options.ion" , false ) ;
user _pref ( "javascript.options.baselinejit" , false ) ;
user _pref ( "javascript.options.native_regexp" , false ) ;
user _pref ( "javascript.options.jit_trustedprincipals" , true ) ; // [FF75+] [HIDDEN PREF]
2020-10-20 20:53:52 +00:00
// -------------------------------------
// Disable WebAssembly [FF52+] [SETUP-PERF]
2020-10-26 18:46:36 +00:00
// 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 ***/
2020-10-20 20:53:52 +00:00
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+]
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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 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 ***/
2021-02-21 11:03:11 +00:00
// user_pref("gfx.direct2d.disabled", true);
2020-10-20 20:53:52 +00:00
// user_pref("layers.acceleration.disabled", true);
// -------------------------------------
// 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
2021-02-25 09:09:54 +00:00
// [SETTING] to add site exceptions: Ctrl+I>Permissions>Access Virtual Reality Devices
2020-10-20 20:53:52 +00:00
// [SETTING] to manage site exceptions: Options>Privacy & Security>Permissions>Virtual Reality>Settings ***/
2021-03-04 09:19:56 +00:00
// user_pref("permissions.default.xr", 2);
2021-07-25 09:43:17 +00:00
// -------------------------------------
// 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.disable-fail-if-major-performance-caveat" , true ) ; // [DEFAULT: true FF86+]
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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 ) ;
// -------------------------------------
2020-12-12 12:03:32 +00:00
// Remove temp files opened with an external application
2020-10-20 20:53:52 +00:00
// https://bugzilla.mozilla.org/302433 ***/
user _pref ( "browser.helperApps.deleteTempFileOnExit" , true ) ;
// -------------------------------------
// Disable page thumbnail collection
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 ) ;
2021-05-27 08:16:50 +00:00
user _pref ( "devtools.performance.recording.ui-base-url" , "http://localhost:55555" ) ;
user _pref ( "devtools.devices.url" , "" ) ;
user _pref ( "devtools.remote.adb.extensionURL" , "" ) ; // [FF64+]
user _pref ( "devtools.remote.adb.extensionID" , "" ) ;
user _pref ( "devtools.selfxss.count" , 0 ) ;
2020-10-20 20:53:52 +00:00
// -------------------------------------
// Disable MathML (Mathematical Markup Language) [FF51+] [SETUP-HARDEN]
// [TEST] https://arkenfox.github.io/TZP/tzp.html#misc
// https://bugzilla.mozilla.org/1173199 ***/
2021-08-07 09:46:02 +00:00
user _pref ( "mathml.disabled" , true ) ;
2020-10-20 20:53:52 +00:00
// -------------------------------------
// 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 ) ;
// -------------------------------------
// Disable websites overriding Firefox's keyboard shortcuts [FF58+]
// 0 (default) or 1=allow, 2=block
2021-02-25 09:09:54 +00:00
// [SETTING] to add site exceptions: Ctrl+I>Permissions>Override Keyboard Shortcuts ***/
2020-10-20 20:53:52 +00:00
// 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" , "" ) ;
// -------------------------------------
2021-07-21 07:30:27 +00:00
// Use Punycode in Internationalized Domain Names to eliminate possible spoofing
2020-10-20 20:53:52 +00:00
// 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 ) ;
// -------------------------------------
2021-04-26 08:34:33 +00:00
// Enforce PDFJS, disable PDFJS scripting [SETUP-CHROME]
2020-10-20 20:53:52 +00:00
// 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)
2021-04-26 08:34:33 +00:00
// Exploits are rare (one serious case in seven years), treated seriously and patched quickly.
2020-10-20 20:53:52 +00:00
// 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]
2021-04-26 08:34:33 +00:00
user _pref ( "pdfjs.enableScripting" , false ) ; // [FF86+]
2020-10-20 20:53:52 +00:00
// -------------------------------------
// 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
2021-03-10 10:16:57 +00:00
// https://groups.google.com/forum/#!topic/mozilla.dev.platform/BdFOMAuCGW8/discussion
2020-10-20 20:53:52 +00:00
user _pref ( "permissions.delegation.enabled" , false ) ;
2020-12-12 12:03:32 +00:00
// -------------------------------------
2020-11-14 10:43:23 +00:00
// 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
2021-01-31 14:32:58 +00:00
// string is restored if the tab reverts back to the original page. This change prevents some cross-site attacks
// https://arkenfox.github.io/TZP/tests/windownamea.html
2020-11-14 10:43:23 +00:00
user _pref ( "privacy.window.name.update.enabled" , true ) ;
2021-01-18 19:54:00 +00:00
// -------------------------------------
// Disable bypassing 3rd party extension install prompts [FF82+]
// https://bugzilla.mozilla.org/buglist.cgi?bug_id=1659530,1681331 ***/
user _pref ( "extensions.postDownloadThirdPartyPrompt" , false ) ;
2021-06-15 10:33:59 +00:00
// -------------------------------------
// Enforce non-native widget theme
// * Security: removes/reduces system API calls, e.g. win32k API
// * Fingerprinting: provides a uniform look and feel across platforms
// * https://bugzilla.mozilla.org/1381938
// * https://bugzilla.mozilla.org/1411425 ***/
user _pref ( "widget.non-native-theme.enabled" , true ) ; // [DEFAULT: true FF89+]
//
2021-01-18 19:54:00 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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);
// -------------------------------------
2021-07-21 07:30:27 +00:00
// Enable user interaction for security by always asking where to download
2020-10-20 20:53:52 +00:00
// [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 ) ;
// -------------------------------------
2020-12-12 12:03:32 +00:00
// Disable "open with" in download dialog [FF50+] [SETUP-HARDEN]
2020-10-20 20:53:52 +00:00
// 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);
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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", "");
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// SECURITY ***/
// >>>>>>>>>>>>>>>>>>>>>
// Enforce CSP (Content Security Policy)
2021-07-21 07:30:27 +00:00
// [NOTE] CSP is a very important and widespread security feature. Don't disable it!
2020-10-20 20:53:52 +00:00
// 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/ ***/
2021-07-21 07:30:27 +00:00
user _pref ( "security.dialog_enable_delay" , 1000 ) ; // [DEFAULT: 1000]
2021-05-19 16:03:36 +00:00
// -------------------------------------
// Enable Site Isolation
user _pref ( "fission.autostart" , true ) ;
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// PERSISTENT STORAGE
// >>>>>>>>>>>>>>>>>>>>>
2021-04-04 17:52:59 +00:00
// Disable or isolate 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 tracking cookies (default)
// 5 = (Isolate All) Cross-site cookies (TCP: Total Cookie Protection / dFPI: dynamic FPI) [1] (FF86+)
// Option 5 with FPI enabled is ignored and not shown, and option 4 used instead
// [NOTE] You can set cookie exceptions under site permissions or use an extension
2020-10-20 20:53:52 +00:00
// [NOTE] Enforcing category to custom ensures ETP related prefs are always honored
2021-04-04 17:52:59 +00:00
// [SETTING] Privacy & Security>Enhanced Tracking Protection>Custom>Cookies
// https://blog.mozilla.org/security/2021/02/23/total-cookie-protection/
2021-08-10 23:05:46 +00:00
user _pref ( "network.cookie.cookieBehavior" , 1 ) ;
2020-10-20 20:53:52 +00:00
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);
// -------------------------------------
2021-07-10 18:04:34 +00:00
// Disable offline cache (appCache)
// [NOTE] In FF90+ the storage capability has been removed.
// [WARNING] The API is easily fingerprinted, do not disable ***/
2020-11-25 11:04:21 +00:00
// user_pref("browser.cache.offline.enable", false);
2020-10-20 20:53:52 +00:00
// -------------------------------------
// 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);
2020-11-14 10:43:23 +00:00
// -------------------------------------
// Enable Local Storage Next Generation (LSNG) [FF65+] ***/
user _pref ( "dom.storage.next_gen" , true ) ;
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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
2020-12-19 16:26:25 +00:00
user _pref ( "privacy.clearOnShutdown.siteSettings" , false ) ; // Site Preferences
2020-10-20 20:53:52 +00:00
// -------------------------------------
// 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 ) ;
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// FPI (FIRST PARTY ISOLATION)
// >>>>>>>>>>>>>>>>>>>>>
// Enable First Party Isolation [FF51+]
// [SETUP-WEB] May break cross-domain logins and site functionality until perfected
2020-12-07 18:32:45 +00:00
// https://bugzilla.mozilla.org/buglist.cgi?bug_id=1260931,1299996 ***/
2020-10-20 20:53:52 +00:00
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
2021-07-25 09:43:17 +00:00
// https://developer.mozilla.org/docs/Web/API/Window/postMessage ***/
2020-10-20 20:53:52 +00:00
// user_pref("privacy.firstparty.isolate.restrict_opener_access", true); // [DEFAULT: true]
// user_pref("privacy.firstparty.isolate.block_post_message", true);
2020-12-12 12:03:32 +00:00
// -------------------------------------
2020-11-25 11:04:21 +00:00
// 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);
2020-10-20 20:53:52 +00:00
// -------------------------------------
// Enable site partitioning (FF78+)
// https://bugzilla.mozilla.org/1590107 [META] */
user _pref ( "privacy.partition.network_state" , true ) ;
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// RFP (RESIST FINGERPRINTING)
// >>>>>>>>>>>>>>>>>>>>>
// Enable privacy.resistFingerprinting [FF41+]
// [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
2020-12-07 18:32:45 +00:00
// https://bugzilla.mozilla.org/1330882 ***/
2020-10-20 20:53:52 +00:00
// 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]
2021-01-27 10:43:49 +00:00
user _pref ( "extensions.webextensions.restrictedDomains" , "" ) ;
2021-05-27 08:16:50 +00:00
user _pref ( "extensions.webextensions.identity.redirectDomain" , "" ) ;
2020-10-20 20:53:52 +00:00
// -------------------------------------
// 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")
2021-07-10 18:04:34 +00:00
// [WARNING] DO NOT USE: the dimension pref is only meant for testing
2020-10-20 20:53:52 +00:00
// 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]
// -------------------------------------
2021-07-10 18:04:34 +00:00
// Experimental RFP [FF91+]
// [WARNING] DO NOT USE unless testing
// https://bugzilla.mozilla.org/1635603 ***/
// user_pref("privacy.resistFingerprinting.exemptedDomains", "*.example.invalid");
// user_pref("privacy.resistFingerprinting.testGranularityMask", 0);
// -------------------------------------
2020-10-20 20:53:52 +00:00
// 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]
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// RFP ALTERNATIVES
// >>>>>>>>>>>>>>>>>>>>>
2021-05-08 21:29:13 +00:00
// Spoof number of CPU cores [FF48+]
2021-08-10 14:57:06 +00:00
// user_pref("dom.maxHardwareConcurrency", 2);
2020-10-20 20:53:52 +00:00
// -------------------------------------
2021-08-10 14:57:06 +00:00
// Disable Resource Timing API
// user_pref("dom.enable_resource_timing", false);
2020-10-20 20:53:52 +00:00
// -------------------------------------
2021-08-10 14:57:06 +00:00
// Disable Navigation Timing API
2021-05-08 21:29:13 +00:00
// user_pref("dom.enable_performance", false);
2020-10-20 20:53:52 +00:00
// -------------------------------------
// Disable device sensor API
user _pref ( "device.sensors.enabled" , false ) ;
// -------------------------------------
2021-08-10 14:57:06 +00:00
// Disable remembering site specific zoom
// user_pref("browser.zoom.siteSpecific", false);
2020-10-20 20:53:52 +00:00
// -------------------------------------
// Disable gamepad API - USB device ID enumeration
2021-08-10 14:57:06 +00:00
// user_pref("dom.gamepad.enabled", false);
2020-10-20 20:53:52 +00:00
// -------------------------------------
2021-08-10 14:57:06 +00:00
// Disable Network Information API [FF31+]
// user_pref("dom.netinfo.enabled", false); // [DEFAULT: true on Android]
2020-10-20 20:53:52 +00:00
// -------------------------------------
// Disable the SpeechSynthesis (Text-to-Speech) part of the Web Speech API
2021-08-10 14:57:06 +00:00
// user_pref("media.webspeech.synth.enabled", false);
2020-10-20 20:53:52 +00:00
// -------------------------------------
2021-08-10 14:57:06 +00:00
// Disable video statistics to mitigate JS performance fingerprinting [FF25+]
// user_pref("media.video_stats.enabled", false);
2020-10-20 20:53:52 +00:00
// -------------------------------------
// Disable touch events
2021-02-21 11:03:11 +00:00
user _pref ( "dom.w3c_touch_events.enabled" , 0 ) ;
2020-10-20 20:53:52 +00:00
// -------------------------------------
2021-06-22 19:05:48 +00:00
// Disable media device enumeration [FF29+]
user _pref ( "media.navigator.enabled" , false ) ;
// -------------------------------------
2020-10-20 20:53:52 +00:00
// Disable MediaDevices change detection [FF51+]
2021-08-10 14:57:06 +00:00
// user_pref("media.ondevicechange.enabled", false);
2020-10-20 20:53:52 +00:00
// -------------------------------------
// Disable WebGL debug info being available to websites
2021-08-10 14:57:06 +00:00
// user_pref("webgl.enable-debug-renderer-info", false);
2020-10-20 20:53:52 +00:00
// -------------------------------------
// Enforce prefers-reduced-motion as no-preference [FF63+] [RESTART]
// 0=no-preference, 1=reduce
2021-08-10 14:57:06 +00:00
// user_pref("ui.prefersReducedMotion", 0); // [HIDDEN PREF]
2020-10-20 20:53:52 +00:00
// -------------------------------------
// Disable exposure of system colors to CSS or canvas [FF44+]
2021-08-10 14:57:06 +00:00
// user_pref("ui.use_standins_for_native_colors", true);
2020-10-20 20:53:52 +00:00
// -------------------------------------
// Enforce prefers-color-scheme as light [FF67+]
// 0=light, 1=dark : This overrides your OS value
2021-08-10 14:57:06 +00:00
// user_pref("ui.systemUsesDarkTheme", 0); // [HIDDEN PREF]
2020-10-20 20:53:52 +00:00
// -------------------------------------
2021-06-22 19:05:48 +00:00
// Disable Web Audio API [FF51+]
user _pref ( "dom.webaudio.enabled" , false ) ;
// -------------------------------------
2021-07-21 07:30:27 +00:00
// Limit font visibility (Windows, Mac, some Linux) [FF79+]
2021-08-10 14:57:06 +00:00
// Uses hardcoded lists with two parts: kBaseFonts + kLangPackFonts [1], bundled fonts are auto-allowed
2020-10-20 20:53:52 +00:00
// 1=only base system fonts, 2=also fonts from optional language packs, 3=also user-installed fonts
2021-08-10 14:57:06 +00:00
// https://searchfox.org/mozilla-central/search?path=StandardFonts*.inc ***/
// user_pref("layout.css.font-visibility.level", 1);
// -------------------------------------
2020-10-20 20:53:52 +00:00
// Navigator DOM object overrides
2021-08-10 14:57:06 +00:00
// [WARNING] NO NOT USE: these prefs are insufficient and leak
2021-06-15 10:33:59 +00:00
// user_pref("general.appname.override", ""); // [HIDDEN PREF]
// user_pref("general.appversion.override", ""); // [HIDDEN PREF]
user _pref ( "general.buildID.override" , "20181001000000" ) ; // [HIDDEN PREF]
// user_pref("general.oscpu.override", ""); // [HIDDEN PREF]
// user_pref("general.platform.override", ""); // [HIDDEN PREF]
user _pref ( "general.useragent.override" , "Mozilla/5.0 (Windows NT 10.0; rv:78.0) Gecko/20100101 Firefox/78.0" ) ; // [HIDDEN PREF]
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// WARNINGS ***/
// >>>>>>>>>>>>>>>>>>>>>
user _pref ( "browser.tabs.warnOnClose" , false ) ;
2020-10-25 14:40:30 +00:00
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 ) ;
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// APPEARANCE ***/
// >>>>>>>>>>>>>>>>>>>>>
// user_pref("browser.download.autohideButton", false); // [FF57+]
// user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true); // [FF68+] allow userChrome/userContent
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// 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
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// UX BEHAVIOR ***/
// >>>>>>>>>>>>>>>>>>>>>
// user_pref("browser.backspace_action", 2); // 0=previous page, 1=scroll up, 2=do nothing
2021-02-25 09:09:54 +00:00
// user_pref("browser.quitShortcut.disabled", true); // disable Ctrl-Q quit shortcut [LINUX] [MAC] [FF87+]
2020-10-20 20:53:52 +00:00
// 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]
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-11-28 15:32:47 +00:00
// UX FEATURES: Disable and hide the icons and menus ***/
2020-10-20 20:53:52 +00:00
// >>>>>>>>>>>>>>>>>>>>>
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
2021-01-04 13:51:27 +00:00
//
2020-12-12 12:03:32 +00:00
// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
2020-10-20 20:53:52 +00:00
// OTHER ***/
2020-11-28 15:32:47 +00:00
// >>>>>>>>>>>>>>>>>>>>>
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// 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)
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user _pref ( "xpinstall.signatures.devInfoURL" , "" ) ;
user _pref ( "webextensions.storage.sync.serverURL" , "" ) ;
user _pref ( "lightweightThemes.getMoreURL" , "" ) ;
user _pref ( "remote.enabled" , false ) ;
user _pref ( "javascript.options.shared_memory" , false ) ;
user _pref ( "default-browser-agent.enabled" , false ) ;
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//
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// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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// DEPRECATED / REMOVED / LEGACY / RENAMED
// >>>>>>>>>>>>>>>>>>>>>
// FF79
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// Enforce fallback text encoding to match en-US
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// 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" ) ;
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// -------------------------------------
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// 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" , "" ) ;
2021-02-23 15:54:55 +00:00
// -------------------------------------
// FF86
// Disable SSL Error Reporting
// https://firefox-source-docs.mozilla.org/browser/base/sslerrorreport/preferences.html
// https://bugzilla.mozilla.org/1681839
user _pref ( "security.ssl.errorReporting.automatic" , false ) ;
user _pref ( "security.ssl.errorReporting.enabled" , false ) ;
user _pref ( "security.ssl.errorReporting.url" , "" ) ;
// -------------------------------------
// Disable hiding mime types (Options>General>Applications) not associated with a plugin
// https://bugzilla.mozilla.org/1581678
user _pref ( "browser.download.hide_plugins_without_extensions" , false ) ;
2021-03-28 10:09:56 +00:00
// -------------------------------------
// FF87
// Disable Activity Stream recent Highlights in the Library [FF57+]
// https://bugzilla.mozilla.org/1689405
user _pref ( "browser.library.activity-stream.enabled" , false ) ;
2021-05-06 18:00:42 +00:00
// -------------------------------------
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// Disable PointerEvents
// https://developer.mozilla.org/docs/Web/API/PointerEvent
// https://bugzilla.mozilla.org/1688105
user _pref ( "dom.w3c_pointer_events.enabled" , false ) ;
// -------------------------------------
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// FF89
// Disable sending Flash crash reports
// https://bugzilla.mozilla.org/1682030 [underlying NPAPI code removed]
user _pref ( "dom.ipc.plugins.flash.subprocess.crashreporter.enabled" , false ) ;
// -------------------------------------
// Disable sending the URL of the website where a plugin crashed
// https://bugzilla.mozilla.org/1682030 [underlying NPAPI code removed]
user _pref ( "dom.ipc.plugins.reportCrashURL" , false ) ;
// -------------------------------------
2021-05-26 18:14:08 +00:00
// Block unencrypted requests from Flash on encrypted pages to mitigate MitM attacks [FF59+]
// https://bugzilla.mozilla.org/1190623
// https://bugzilla.mozilla.org/1682030 [underlying NPAPI code removed]
user _pref ( "security.mixed_content.block_object_subrequest" , true ) ;
// -------------------------------------
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// 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
// https://bugzilla.mozilla.org/1682030 [underlying NPAPI code removed]
user _pref ( "plugin.state.flash" , 0 ) ; // [DEFAULT: 1]
2021-07-10 18:04:34 +00:00
// -------------------------------------
// Disable FTP [FF60+]
// https://bugzilla.mozilla.org/1574475
// user_pref("network.ftp.enabled", false); // [DEFAULT: false FF88+]
// -------------------------------------
// Enforce no offline cache storage (appCache) [FF71+]
// https://bugzilla.mozilla.org/1694662
user _pref ( "browser.cache.offline.storage.enable" , false ) ; // [DEFAULT: false FF84+]
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// >>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
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//
