diff --git a/prefsCleaner.bat b/prefsCleaner.bat
index 2e3403f..62ca5f0 100644
--- a/prefsCleaner.bat
+++ b/prefsCleaner.bat
@@ -3,7 +3,7 @@ TITLE prefs.js cleaner
REM ### prefs.js cleaner for Windows
REM ## author: @claustromaniac
-REM ## version: 2.7
+REM ## version: 2.8
CD /D "%~dp0"
@@ -15,7 +15,7 @@ ECHO:
ECHO ########################################
ECHO #### prefs.js cleaner for Windows ####
ECHO #### by claustromaniac ####
-ECHO #### v2.7 ####
+ECHO #### v2.8 ####
ECHO ########################################
ECHO:
CALL :message "This script should be run from your Firefox profile directory."
@@ -37,7 +37,7 @@ CALL :strlenCheck
CALL :FFcheck
CALL :message "Backing up prefs.js..."
-FOR /F "delims=" %%# IN ('powershell get-date -format "{yyyyMMdd_HHmmss}"') DO @SET ldt=%%#
+FOR /F "delims=" %%# IN ('powershell -command get-date -format "{yyyyMMdd_HHmmss}"') DO @SET ldt=%%#
COPY /B /V /Y prefs.js "prefs-backup-%ldt%.js"
CALL :message "Cleaning prefs.js..."
diff --git a/prefsCleaner.sh b/prefsCleaner.sh
index f36732c..b9739b2 100755
--- a/prefsCleaner.sh
+++ b/prefsCleaner.sh
@@ -2,23 +2,12 @@
## prefs.js cleaner for Linux/Mac
## author: @claustromaniac
-## version: 1.9
+## version: 2.1
## special thanks to @overdodactyl and @earthlng for a few snippets that I stol..*cough* borrowed from the updater.sh
## DON'T GO HIGHER THAN VERSION x.9 !! ( because of ASCII comparison in update_prefsCleaner() )
-# Check if running as root and if any files have the owner/group as root/wheel.
-if [ "${EUID:-"$(id -u)"}" -eq 0 ]; then
- printf "You shouldn't run this with elevated privileges (such as with doas/sudo).\n"
- exit 1
-elif [ -n "$(find ./ -user 0 -o -group 0)" ]; then
- printf 'It looks like this script was previously run with elevated privileges,
-you will need to change ownership of the following files to your user:\n'
- find . -user 0 -o -group 0
- exit 1
-fi
-
readonly CURRDIR=$(pwd)
## get the full path of this script (readlink for Linux, greadlink for Mac with coreutils installed)
@@ -143,13 +132,23 @@ done
## change directory to the Firefox profile directory
cd "$(dirname "${SCRIPT_FILE}")"
+# Check if running as root and if any files have the owner as root/wheel.
+if [ "${EUID:-"$(id -u)"}" -eq 0 ]; then
+ fQuit 1 "You shouldn't run this with elevated privileges (such as with doas/sudo)."
+elif [ -n "$(find ./ -user 0)" ]; then
+ printf 'It looks like this script was previously run with elevated privileges,
+you will need to change ownership of the following files to your user:\n'
+ find . -user 0
+ fQuit 1
+fi
+
[ "$AUTOUPDATE" = true ] && update_prefsCleaner "$@"
echo -e "\n\n"
echo " ╔══════════════════════════╗"
echo " ║ prefs.js cleaner ║"
echo " ║ by claustromaniac ║"
-echo " ║ v1.9 ║"
+echo " ║ v2.1 ║"
echo " ╚══════════════════════════╝"
echo -e "\nThis script should be run from your Firefox profile directory.\n"
echo "It will remove any entries from prefs.js that also exist in user.js."
diff --git a/scratchpad-scripts/arkenfox-cleanup.js b/scratchpad-scripts/arkenfox-cleanup.js
index 6e06248..3434fc7 100644
--- a/scratchpad-scripts/arkenfox-cleanup.js
+++ b/scratchpad-scripts/arkenfox-cleanup.js
@@ -1,9 +1,12 @@
/***
- This will reset the preferences that have been
+ This will reset the preferences that since FF91 have been
- removed from the arkenfox user.js
- deprecated by Mozilla but listed in the arkenfox user.js in the past
- Last updated: 27-January-2023
+ There is an archived version at https://github.com/arkenfox/user.js/issues/123
+ if you want the full list since jesus
+
+ Last updated: 21-April-2025
Instructions:
- [optional] close Firefox and backup your profile
@@ -32,8 +35,29 @@
const aPREFS = [
/* DEPRECATED */
- /* 103+ */
+ /* 129-140 */
+ 'media.ondevicechange.enabled', // 137
+ 'webchannel.allowObject.urlWhitelist', // 132
+ /* 116-128 */
+ 'browser.contentanalysis.default_allow', // 127
+ 'browser.messaging-system.whatsNewPanel.enabled', // 126
+ 'browser.ping-centre.telemetry', // 123
+ 'dom.webnotifications.serviceworker.enabled', // 117
+ 'javascript.use_us_english_locale', // 119
+ 'layout.css.font-visibility.private', // 118
+ 'layout.css.font-visibility.resistFingerprinting', // 116
+ 'layout.css.font-visibility.standard', // 118
+ 'layout.css.font-visibility.trackingprotection', // 118
+ 'network.dns.skipTRR-when-parental-control-enabled', // 119
+ 'permissions.delegation.enabled', // 118
+ 'security.family_safety.mode', // 117
+ 'widget.non-native-theme.enabled', // 127
+ /* 103-115 */
+ 'browser.cache.offline.enable', // 115
+ 'extensions.formautofill.heuristics.enabled', // 114
'network.cookie.lifetimePolicy', // 103 [technically removed in 104]
+ 'privacy.clearsitedata.cache.enabled', // 114
+ 'privacy.resistFingerprinting.testGranularityMask', // 114
'security.pki.sha1_enforcement_level', // 103
/* 92-102 */
'browser.urlbar.suggest.quicksuggest', // 95
@@ -48,196 +72,37 @@
'security.csp.enable', // 99
'security.password_lifetime', // 102
'security.ssl3.rsa_des_ede3_sha', // 93
- /* 79-91 */
- 'browser.cache.offline.storage.enable',
- 'browser.download.hide_plugins_without_extensions',
- 'browser.library.activity-stream.enabled',
- 'browser.search.geoSpecificDefaults',
- 'browser.search.geoSpecificDefaults.url',
- 'dom.ipc.plugins.flash.subprocess.crashreporter.enabled',
- 'dom.ipc.plugins.reportCrashURL',
- 'dom.w3c_pointer_events.enabled',
- 'intl.charset.fallback.override',
- 'network.ftp.enabled',
- 'plugin.state.flash',
- 'security.mixed_content.block_object_subrequest',
- 'security.ssl.errorReporting.automatic',
- 'security.ssl.errorReporting.enabled',
- 'security.ssl.errorReporting.url',
- /* 69-78 */
- 'browser.newtabpage.activity-stream.telemetry.ping.endpoint',
- 'browser.tabs.remote.allowLinkedWebInFileUriProcess',
- 'browser.urlbar.oneOffSearches',
- 'devtools.webide.autoinstallADBExtension',
- 'devtools.webide.enabled',
- 'dom.indexedDB.enabled',
- 'extensions.blocklist.url',
- 'geo.wifi.logging.enabled',
- 'geo.wifi.uri',
- 'gfx.downloadable_fonts.woff2.enabled',
- 'media.autoplay.allow-muted',
- 'media.autoplay.enabled.user-gestures-needed',
- 'offline-apps.allow_by_default',
- 'plugins.click_to_play',
- 'privacy.userContext.longPressBehavior',
- 'toolkit.cosmeticAnimations.enabled',
- 'toolkit.telemetry.hybridContent.enabled',
- 'webgl.disable-extensions',
- /* 61-68 */
- 'app.update.enabled',
- 'browser.aboutHomeSnippets.updateUrl',
- 'browser.chrome.errorReporter.enabled',
- 'browser.chrome.errorReporter.submitUrl',
- 'browser.chrome.favicons',
- 'browser.ctrlTab.previews',
- 'browser.fixup.hide_user_pass',
- 'browser.newtabpage.activity-stream.asrouter.userprefs.cfr',
- 'browser.newtabpage.activity-stream.disableSnippets',
- 'browser.onboarding.enabled',
- 'browser.search.countryCode',
- 'browser.urlbar.autocomplete.enabled',
- 'devtools.webide.adbAddonURL',
- 'devtools.webide.autoinstallADBHelper',
- 'dom.event.highrestimestamp.enabled',
- 'experiments.activeExperiment',
- 'experiments.enabled',
- 'experiments.manifest.uri',
- 'experiments.supported',
- 'lightweightThemes.update.enabled',
- 'media.autoplay.enabled',
- 'network.allow-experiments',
- 'network.cookie.lifetime.days',
- 'network.jar.block-remote-files',
- 'network.jar.open-unsafe-types',
- 'plugin.state.java',
- 'security.csp.enable_violation_events',
- 'security.csp.experimentalEnabled',
- 'shield.savant.enabled',
- /* 60 or earlier */
- 'browser.bookmarks.showRecentlyBookmarked',
- 'browser.casting.enabled',
- 'browser.crashReports.unsubmittedCheck.autoSubmit',
- 'browser.formautofill.enabled',
- 'browser.formfill.saveHttpsForms',
- 'browser.fullscreen.animate',
- 'browser.history.allowPopState',
- 'browser.history.allowPushState',
- 'browser.history.allowReplaceState',
- 'browser.newtabpage.activity-stream.enabled',
- 'browser.newtabpage.directory.ping',
- 'browser.newtabpage.directory.source',
- 'browser.newtabpage.enhanced',
- 'browser.newtabpage.introShown',
- 'browser.pocket.api',
- 'browser.pocket.enabled',
- 'browser.pocket.oAuthConsumerKey',
- 'browser.pocket.site',
- 'browser.polaris.enabled',
- 'browser.safebrowsing.appRepURL',
- 'browser.safebrowsing.enabled',
- 'browser.safebrowsing.gethashURL',
- 'browser.safebrowsing.malware.reportURL',
- 'browser.safebrowsing.provider.google.appRepURL',
- 'browser.safebrowsing.reportErrorURL',
- 'browser.safebrowsing.reportGenericURL',
- 'browser.safebrowsing.reportMalwareErrorURL',
- 'browser.safebrowsing.reportMalwareMistakeURL',
- 'browser.safebrowsing.reportMalwareURL',
- 'browser.safebrowsing.reportPhishMistakeURL',
- 'browser.safebrowsing.reportURL',
- 'browser.safebrowsing.updateURL',
- 'browser.search.showOneOffButtons',
- 'browser.selfsupport.enabled',
- 'browser.selfsupport.url',
- 'browser.sessionstore.privacy_level_deferred',
- 'browser.tabs.animate',
- 'browser.trackingprotection.gethashURL',
- 'browser.trackingprotection.updateURL',
- 'browser.urlbar.unifiedcomplete',
- 'browser.usedOnWindows10.introURL',
- 'camera.control.autofocus_moving_callback.enabled',
- 'camera.control.face_detection.enabled',
- 'datareporting.healthreport.about.reportUrl',
- 'datareporting.healthreport.about.reportUrlUnified',
- 'datareporting.healthreport.documentServerURI',
- 'datareporting.healthreport.service.enabled',
- 'datareporting.policy.dataSubmissionEnabled.v2',
- 'devtools.webide.autoinstallFxdtAdapters',
- 'dom.archivereader.enabled',
- 'dom.beforeAfterKeyboardEvent.enabled',
- 'dom.disable_image_src_set',
- 'dom.disable_window_open_feature.scrollbars',
- 'dom.disable_window_status_change',
- 'dom.enable_user_timing',
- 'dom.flyweb.enabled',
- 'dom.idle-observers-api.enabled',
- 'dom.keyboardevent.code.enabled',
- 'dom.network.enabled',
- 'dom.push.udp.wakeupEnabled',
- 'dom.telephony.enabled',
- 'dom.vr.oculus050.enabled',
- 'dom.workers.enabled',
- 'dom.workers.sharedWorkers.enabled',
- 'extensions.formautofill.experimental',
- 'extensions.screenshots.system-disabled',
- 'extensions.shield-recipe-client.api_url',
- 'extensions.shield-recipe-client.enabled',
- 'full-screen-api.approval-required',
- 'general.useragent.locale',
- 'geo.security.allowinsecure',
- 'intl.locale.matchOS',
- 'loop.enabled',
- 'loop.facebook.appId',
- 'loop.facebook.enabled',
- 'loop.facebook.fallbackUrl',
- 'loop.facebook.shareUrl',
- 'loop.feedback.formURL',
- 'loop.feedback.manualFormURL',
- 'loop.logDomains',
- 'loop.server',
- 'media.block-play-until-visible',
- 'media.eme.apiVisible',
- 'media.eme.chromium-api.enabled',
- 'media.getusermedia.screensharing.allow_on_old_platforms',
- 'media.getusermedia.screensharing.allowed_domains',
- 'media.gmp-eme-adobe.autoupdate',
- 'media.gmp-eme-adobe.enabled',
- 'media.gmp-eme-adobe.visible',
- 'network.http.referer.userControlPolicy',
- 'network.http.sendSecureXSiteReferrer',
- 'network.http.spdy.enabled.http2draft',
- 'network.http.spdy.enabled.v3-1',
- 'network.websocket.enabled',
- 'pageThumbs.enabled',
- 'pfs.datasource.url',
- 'plugin.scan.Acrobat',
- 'plugin.scan.Quicktime',
- 'plugin.scan.WindowsMediaPlayer',
- 'plugins.enumerable_names',
- 'plugins.update.notifyUser',
- 'plugins.update.url',
- 'privacy.clearOnShutdown.passwords',
- 'privacy.donottrackheader.value',
- 'security.mixed_content.send_hsts_priming',
- 'security.mixed_content.use_hsts',
- 'security.ssl3.ecdhe_ecdsa_rc4_128_sha',
- 'security.ssl3.ecdhe_rsa_rc4_128_sha',
- 'security.ssl3.rsa_rc4_128_md5',
- 'security.ssl3.rsa_rc4_128_sha',
- 'security.tls.insecure_fallback_hosts.use_static_list',
- 'security.tls.unrestricted_rc4_fallback',
- 'security.xpconnect.plugin.unrestricted',
- 'social.directories',
- 'social.enabled',
- 'social.remote-install.enabled',
- 'social.share.activationPanelEnabled',
- 'social.shareDirectory',
- 'social.toast-notifications.enabled',
- 'social.whitelist',
- 'toolkit.telemetry.unifiedIsOptIn',
/* REMOVED */
- /* 103+ */
+ /* 129-140 */
+ 'dom.securecontext.allowlist_onions',
+ 'network.http.referer.hideOnionSource',
+ 'privacy.clearOnShutdown.cache',
+ 'privacy.clearOnShutdown.cookies',
+ 'privacy.clearOnShutdown.downloads',
+ 'privacy.clearOnShutdown.formdata',
+ 'privacy.clearOnShutdown.history',
+ 'privacy.clearOnShutdown.offlineApps',
+ 'privacy.clearOnShutdown.sessions',
+ 'privacy.cpd.cache',
+ 'privacy.cpd.cookies',
+ 'privacy.cpd.formdata',
+ 'privacy.cpd.history',
+ 'privacy.cpd.offlineApps',
+ 'privacy.cpd.sessions',
+ /* 116-128 */
+ 'browser.fixup.alternate.enabled',
+ 'browser.taskbar.previews.enable',
+ 'browser.urlbar.dnsResolveSingleWordsAfterSearch',
+ 'geo.provider.network.url',
+ 'geo.provider.network.logging.enabled',
+ 'geo.provider.use_gpsd',
+ 'media.gmp-widevinecdm.enabled',
+ 'network.protocol-handler.external.ms-windows-store',
+ 'privacy.partition.always_partition_third_party_non_cookie_storage',
+ 'privacy.partition.always_partition_third_party_non_cookie_storage.exempt_sessionstorage',
+ 'privacy.partition.serviceWorkers',
+ /* 103-115 */
'beacon.enabled',
'browser.startup.blankWindow',
'browser.newtab.preload',
@@ -257,6 +122,7 @@
'extensions.formautofill.available',
'extensions.formautofill.creditCards.available',
'extensions.formautofill.creditCards.supported',
+ 'middlemouse.contentLoadURL',
'network.http.altsvc.oe',
/* 92-102 */
'browser.urlbar.trimURLs',
@@ -271,224 +137,6 @@
'privacy.firstparty.isolate.use_site',
'privacy.window.name.update.enabled',
'security.insecure_connection_text.enabled',
- /* 79-91 */
- 'alerts.showFavicons',
- 'browser.newtabpage.activity-stream.asrouter.providers.snippets',
- 'browser.send_pings.require_same_host',
- 'browser.urlbar.usepreloadedtopurls.enabled',
- 'dom.allow_cut_copy',
- 'dom.battery.enabled',
- 'dom.IntersectionObserver.enabled',
- 'dom.storage.enabled',
- 'dom.vibrator.enabled',
- 'extensions.screenshots.upload-disabled',
- 'general.warnOnAboutConfig',
- 'gfx.direct2d.disabled',
- 'layers.acceleration.disabled',
- 'media.getusermedia.audiocapture.enabled',
- 'media.getusermedia.browser.enabled',
- 'media.getusermedia.screensharing.enabled',
- 'media.gmp-widevinecdm.visible',
- 'media.media-capabilities.enabled',
- 'network.http.redirection-limit',
- 'privacy.partition.network_state',
- 'security.insecure_connection_icon.enabled',
- 'security.mixed_content.block_active_content',
- 'security.ssl.enable_ocsp_stapling',
- 'security.ssl3.dhe_rsa_aes_128_sha',
- 'security.ssl3.dhe_rsa_aes_256_sha',
- 'webgl.min_capability_mode',
- /* 69-78 */
- 'browser.cache.disk_cache_ssl',
- 'browser.search.geoip.url',
- 'browser.search.region',
- 'browser.sessionhistory.max_entries',
- 'dom.push.connection.enabled',
- 'dom.push.serverURL',
- 'extensions.getAddons.discovery.api_url',
- 'extensions.htmlaboutaddons.discover.enabled',
- 'extensions.webservice.discoverURL',
- 'intl.locale.requested',
- 'intl.regional_prefs.use_os_locales',
- 'media.block-autoplay-until-in-foreground',
- 'middlemouse.paste',
- 'plugin.sessionPermissionNow.intervalInMinutes',
- 'privacy.usercontext.about_newtab_segregation.enabled',
- 'security.insecure_connection_icon.pbmode.enabled',
- 'security.insecure_connection_text.pbmode.enabled',
- 'webgl.dxgl.enabled',
- /* 61-68 */
- 'app.update.service.enabled',
- 'app.update.silent',
- 'app.update.staging.enabled',
- 'browser.cache.disk.capacity',
- 'browser.cache.disk.smart_size.enabled',
- 'browser.cache.disk.smart_size.first_run',
- 'browser.cache.offline.insecure.enable',
- 'browser.contentblocking.enabled',
- 'browser.laterrun.enabled',
- 'browser.offline-apps.notify',
- 'browser.rights.3.shown',
- 'browser.safebrowsing.blockedURIs.enabled',
- 'browser.safebrowsing.downloads.remote.block_dangerous',
- 'browser.safebrowsing.downloads.remote.block_dangerous_host',
- 'browser.safebrowsing.provider.google.gethashURL',
- 'browser.safebrowsing.provider.google.reportMalwareMistakeURL',
- 'browser.safebrowsing.provider.google.reportPhishMistakeURL',
- 'browser.safebrowsing.provider.google.reportURL',
- 'browser.safebrowsing.provider.google.updateURL',
- 'browser.safebrowsing.provider.google4.dataSharing.enabled',
- 'browser.safebrowsing.provider.google4.dataSharingURL',
- 'browser.safebrowsing.provider.google4.gethashURL',
- 'browser.safebrowsing.provider.google4.reportMalwareMistakeURL',
- 'browser.safebrowsing.provider.google4.reportPhishMistakeURL',
- 'browser.safebrowsing.provider.google4.reportURL',
- 'browser.safebrowsing.provider.google4.updateURL',
- 'browser.safebrowsing.provider.mozilla.gethashURL',
- 'browser.safebrowsing.provider.mozilla.updateURL',
- 'browser.safebrowsing.reportPhishURL',
- 'browser.sessionhistory.max_total_viewers',
- 'browser.sessionstore.max_windows_undo',
- 'browser.slowStartup.maxSamples',
- 'browser.slowStartup.notificationDisabled',
- 'browser.slowStartup.samples',
- 'browser.storageManager.enabled',
- 'browser.urlbar.autoFill.typed',
- 'browser.urlbar.filter.javascript',
- 'browser.urlbar.maxHistoricalSearchSuggestions',
- 'browser.urlbar.userMadeSearchSuggestionsChoice',
- 'canvas.capturestream.enabled',
- 'dom.allow_scripts_to_close_windows',
- 'dom.disable_window_flip',
- 'dom.forms.datetime',
- 'dom.imagecapture.enabled',
- 'dom.popup_maximum',
- 'extensions.webextensions.keepStorageOnUninstall',
- 'extensions.webextensions.keepUuidOnUninstall',
- 'font.blacklist.underline_offset',
- 'font.name.monospace.x-unicode',
- 'font.name.monospace.x-western',
- 'font.name.sans-serif.x-unicode',
- 'font.name.sans-serif.x-western',
- 'font.name.serif.x-unicode',
- 'font.name.serif.x-western',
- 'gfx.offscreencanvas.enabled',
- 'javascript.options.shared_memory',
- 'layout.css.font-loading-api.enabled',
- 'media.gmp-gmpopenh264.autoupdate',
- 'media.gmp-gmpopenh264.enabled',
- 'media.gmp-manager.updateEnabled',
- 'media.gmp-manager.url',
- 'media.gmp-manager.url.override',
- 'media.gmp-widevinecdm.autoupdate',
- 'media.gmp.trial-create.enabled',
- 'media.navigator.video.enabled',
- 'media.peerconnection.ice.tcp',
- 'media.peerconnection.identity.enabled',
- 'media.peerconnection.identity.timeout',
- 'media.peerconnection.turn.disable',
- 'media.peerconnection.use_document_iceservers',
- 'media.peerconnection.video.enabled',
- 'network.auth.subresource-img-cross-origin-http-auth-allow',
- 'network.cookie.leave-secure-alone',
- 'network.cookie.same-site.enabled',
- 'network.dnsCacheEntries',
- 'network.dnsCacheExpiration',
- 'network.http.fast-fallback-to-IPv4',
- 'network.proxy.autoconfig_url.include_path',
- 'offline-apps.quota.warn',
- 'pdfjs.enableWebGL',
- 'plugin.default.state',
- 'plugin.defaultXpi.state',
- 'plugin.scan.plid.all',
- 'privacy.trackingprotection.annotate_channels',
- 'privacy.trackingprotection.lower_network_priority',
- 'privacy.trackingprotection.pbmode.enabled',
- 'privacy.trackingprotection.ui.enabled',
- 'security.data_uri.block_toplevel_data_uri_navigations',
- 'security.insecure_field_warning.contextual.enabled',
- 'security.insecure_password.ui.enabled',
- 'security.tls.version.fallback-limit',
- 'services.blocklist.addons.collection',
- 'services.blocklist.gfx.collection',
- 'services.blocklist.onecrl.collection',
- 'services.blocklist.plugins.collection',
- 'services.blocklist.signing.enforced',
- 'services.blocklist.update_enabled',
- 'signon.autofillForms.http',
- 'signon.storeWhenAutocompleteOff',
- 'toolkit.telemetry.cachedClientID',
- 'urlclassifier.trackingTable',
- 'xpinstall.whitelist.required',
- /* 60 or lower */
- 'browser.migrate.automigrate.enabled',
- 'browser.search.geoip.timeout',
- 'browser.search.reset.enabled',
- 'browser.search.reset.whitelist',
- 'browser.stopReloadAnimation.enabled',
- 'browser.tabs.insertRelatedAfterCurrent',
- 'browser.tabs.loadDivertedInBackground',
- 'browser.tabs.loadInBackground',
- 'browser.tabs.selectOwnerOnClose',
- 'browser.urlbar.clickSelectsAll',
- 'browser.urlbar.doubleClickSelectsAll',
- 'device.storage.enabled',
- 'dom.keyboardevent.dispatch_during_composition',
- 'dom.presentation.controller.enabled',
- 'dom.presentation.discoverable',
- 'dom.presentation.discovery.enabled',
- 'dom.presentation.enabled',
- 'dom.presentation.receiver.enabled',
- 'dom.presentation.session_transport.data_channel.enable',
- 'dom.vr.oculus.enabled',
- 'dom.vr.openvr.enabled',
- 'dom.vr.osvr.enabled',
- 'extensions.pocket.api',
- 'extensions.pocket.oAuthConsumerKey',
- 'extensions.pocket.site',
- 'general.useragent.compatMode.firefox',
- 'geo.wifi.xhr.timeout',
- 'gfx.layerscope.enabled',
- 'media.flac.enabled',
- 'media.mediasource.enabled',
- 'media.mediasource.mp4.enabled',
- 'media.mediasource.webm.audio.enabled',
- 'media.mediasource.webm.enabled',
- 'media.mp4.enabled',
- 'media.ogg.enabled',
- 'media.ogg.flac.enabled',
- 'media.opus.enabled',
- 'media.raw.enabled',
- 'media.wave.enabled',
- 'media.webm.enabled',
- 'media.webspeech.recognition.enable',
- 'media.wmf.amd.vp9.enabled',
- 'media.wmf.enabled',
- 'media.wmf.vp9.enabled',
- 'network.dns.blockDotOnion',
- 'network.stricttransportsecurity.preloadlist',
- 'security.block_script_with_wrong_mime',
- 'security.fileuri.strict_origin_policy',
- 'security.sri.enable',
- 'services.sync.enabled',
- 'ui.submenuDelay',
- 'webextensions.storage.sync.enabled',
- 'webextensions.storage.sync.serverURL',
- // excluding these e10 settings
- // 'browser.tabs.remote.autostart',
- // 'browser.tabs.remote.autostart.2',
- // 'browser.tabs.remote.force-enable',
- // 'browser.tabs.remote.separateFileUriProcess',
- // 'extensions.e10sBlocksEnabling',
- // 'extensions.webextensions.remote',
- // 'dom.ipc.processCount',
- // 'dom.ipc.shims.enabledWarnings',
- // 'dom.ipc.processCount.extension',
- // 'dom.ipc.processCount.file',
- // 'security.sandbox.content.level',
- // 'dom.ipc.plugins.sandbox-level.default',
- // 'dom.ipc.plugins.sandbox-level.flash',
- // 'security.sandbox.logging.enabled',
/* IMPORTANT: last active pref must not have a trailing comma */
/* reset parrot: check your open about:config after running the script */
diff --git a/updater.bat b/updater.bat
index f6174f7..bc1078a 100644
--- a/updater.bat
+++ b/updater.bat
@@ -3,7 +3,7 @@ TITLE arkenfox user.js updater
REM ## arkenfox user.js updater for Windows
REM ## author: @claustromaniac
-REM ## version: 4.19
+REM ## version: 4.20
REM ## instructions: https://github.com/arkenfox/user.js/wiki/5.1-Updater-[Options]#-windows
SET v=4.19
@@ -177,7 +177,7 @@ IF EXIST user.js.new (
IF DEFINED _singlebackup (
MOVE /Y user.js user.js.bak >nul
) ELSE (
- FOR /F "delims=" %%# IN ('powershell get-date -format "{yyyyMMdd_HHmmss}"') DO @SET ldt=%%#
+ FOR /F "delims=" %%# IN ('powershell -command get-date -format "{yyyyMMdd_HHmmss}"') DO @SET ldt=%%#
MOVE /Y user.js "user-backup-!ldt!.js" >nul
)
REN user.js.new user.js
diff --git a/updater.sh b/updater.sh
index 6a3d1f2..72c77fc 100755
--- a/updater.sh
+++ b/updater.sh
@@ -2,20 +2,15 @@
## arkenfox user.js updater for macOS and Linux
-## version: 3.8
+## version: 4.0
## Author: Pat Johnson (@overdodactyl)
## Additional contributors: @earthlng, @ema-pe, @claustromaniac, @infinitewarp
## DON'T GO HIGHER THAN VERSION x.9 !! ( because of ASCII comparison in update_updater() )
-# Check if running as root and if any files have the owner/group as root/wheel.
+# Check if running as root
if [ "${EUID:-"$(id -u)"}" -eq 0 ]; then
- printf "You shouldn\'t run this with elevated privileges (such as with doas/sudo).\n"
- exit 1
-elif [ -n "$(find ./ -user 0 -o -group 0)" ]; then
- printf 'It looks like this script was previously run with elevated privileges,
-you will need to change ownership of the following files to your user:\n'
- find . -user 0 -o -group 0
+ printf "You shouldn't run this with elevated privileges (such as with doas/sudo).\n"
exit 1
fi
@@ -396,6 +391,17 @@ show_banner
update_updater "$@"
getProfilePath # updates PROFILE_PATH or exits on error
-cd "$PROFILE_PATH" && update_userjs
+cd "$PROFILE_PATH" || exit 1
+
+# Check if any files have the owner as root/wheel.
+if [ -n "$(find ./ -user 0)" ]; then
+ printf 'It looks like this script was previously run with elevated privileges,
+you will need to change ownership of the following files to your user:\n'
+ find . -user 0
+ cd "$CURRDIR"
+ exit 1
+fi
+
+update_userjs
cd "$CURRDIR"
diff --git a/user.js b/user.js
index 7b0962d..08c51ca 100644
--- a/user.js
+++ b/user.js
@@ -1,8 +1,9 @@
/******
* name: arkenfox user.js
-* date: 4 May 2023
-* version: 112
-* url: https://github.com/arkenfox/user.js
+* date: 6 March 2025
+* version: 135
+* urls: https://github.com/arkenfox/user.js [repo]
+* : https://arkenfox.github.io/gui/ [interactive]
* license: MIT: https://github.com/arkenfox/user.js/blob/master/LICENSE.txt
* README:
@@ -18,7 +19,6 @@
* Some site breakage and unintended consequences will happen. Everyone's experience will differ
e.g. some user data is erased on exit (section 2800), change this to suit your needs
* While not 100% definitive, search for "[SETUP" tags
- e.g. third party images/videos not loading on some sites? check 1601
5. Some tag info
[SETUP-SECURITY] it's one item, read it
[SETUP-WEB] can cause some websites to break
@@ -27,42 +27,45 @@
* RELEASES: https://github.com/arkenfox/user.js/releases
- * It is best to use the arkenfox release that is optimized for and matches your Firefox version
- * EVERYONE: each release
- - run prefsCleaner to reset prefs made inactive, including deprecated (9999s)
- ESR102
- - If you are not using arkenfox v102-1... (not a definitive list)
- - 2815: clearOnShutdown cookies + offlineApps should be false
- - 9999: switch the appropriate deprecated section(s) back on
+ * Use the arkenfox release that matches your Firefox version
+ - DON'T wait for arkenfox to update Firefox, nothing major changes these days
+ * Each release
+ - run prefsCleaner to reset prefs made inactive, including deprecated (9999)
+ * ESR
+ - It is recommended to not use the updater, or you will get a later version which may cause issues.
+ So you should manually append your overrides (and keep a copy), and manually update when you
+ change ESR releases (arkenfox is already past that release)
+ - If you decide to keep updating, then the onus is on you - also see section 9999
* INDEX:
0100: STARTUP
- 0200: GEOLOCATION / LANGUAGE / LOCALE
+ 0200: GEOLOCATION
0300: QUIETER FOX
0400: SAFE BROWSING
0600: BLOCK IMPLICIT OUTBOUND
- 0700: DNS / DoH / PROXY / SOCKS / IPv6
+ 0700: DNS / DoH / PROXY / SOCKS
0800: LOCATION BAR / SEARCH BAR / SUGGESTIONS / HISTORY / FORMS
0900: PASSWORDS
1000: DISK AVOIDANCE
1200: HTTPS (SSL/TLS / OCSP / CERTS / HPKP)
- 1400: FONTS
- 1600: HEADERS / REFERERS
+ 1600: REFERERS
1700: CONTAINERS
2000: PLUGINS / MEDIA / WEBRTC
2400: DOM (DOCUMENT OBJECT MODEL)
2600: MISCELLANEOUS
2700: ETP (ENHANCED TRACKING PROTECTION)
2800: SHUTDOWN & SANITIZING
- 4500: RFP (RESIST FINGERPRINTING)
+ 4000: FPP (fingerprintingProtection)
+ 4500: OPTIONAL RFP (resistFingerprinting)
5000: OPTIONAL OPSEC
5500: OPTIONAL HARDENING
6000: DON'T TOUCH
7000: DON'T BOTHER
8000: DON'T BOTHER: FINGERPRINTING
+ 8500: TELEMETRY
9000: NON-PROJECT RELATED
- 9999: DEPRECATED / REMOVED / LEGACY / RENAMED
+ 9999: DEPRECATED / RENAMED
******/
@@ -80,7 +83,7 @@ user_pref("browser.aboutConfig.showWarning", false);
user_pref("_user.js.parrot", "0100 syntax error: the parrot's dead!");
/* 0102: set startup page [SETUP-CHROME]
* 0=blank, 1=home, 2=last visited page, 3=resume previous session
- * [NOTE] Session Restore is cleared with history (2811), and not used in Private Browsing mode
+ * [NOTE] Session Restore is cleared with history (2811+), and not used in Private Browsing mode
* [SETTING] General>Startup>Restore previous session ***/
user_pref("browser.startup.page", 0);
/* 0103: set HOME+NEWWINDOW page
@@ -93,32 +96,18 @@ user_pref("browser.startup.homepage", "about:blank");
user_pref("browser.newtabpage.enabled", false);
/* 0105: disable sponsored content on Firefox Home (Activity Stream)
* [SETTING] Home>Firefox Home Content ***/
-user_pref("browser.newtabpage.activity-stream.showSponsored", false); // [FF58+] Pocket > Sponsored Stories
-user_pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false); // [FF83+] Sponsored shortcuts
+user_pref("browser.newtabpage.activity-stream.showSponsored", false); // [FF58+]
+user_pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false); // [FF83+] Shortcuts>Sponsored shortcuts
/* 0106: clear default topsites
* [NOTE] This does not block you from adding your own ***/
user_pref("browser.newtabpage.activity-stream.default.sites", "");
-/*** [SECTION 0200]: GEOLOCATION / LANGUAGE / LOCALE ***/
+/*** [SECTION 0200]: GEOLOCATION ***/
user_pref("_user.js.parrot", "0200 syntax error: the parrot's definitely deceased!");
-/* 0201: use Mozilla geolocation service instead of Google if permission is granted [FF74+]
- * Optionally enable logging to the console (defaults to false) ***/
-user_pref("geo.provider.network.url", "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%");
- // user_pref("geo.provider.network.logging.enabled", true); // [HIDDEN PREF]
/* 0202: 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]
user_pref("geo.provider.use_geoclue", false); // [FF102+] [LINUX]
-/* 0210: set preferred language for displaying pages
- * [SETTING] General>Language and Appearance>Language>Choose your preferred language...
- * [TEST] https://addons.mozilla.org/about ***/
-user_pref("intl.accept_languages", "en-US, en");
-/* 0211: use en-US locale regardless of the system or region locale
- * [SETUP-WEB] May break some input methods e.g xim/ibus for CJK languages [1]
- * [TEST] https://arkenfox.github.io/TZP/tests/formatting.html
- * [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=867501,1629630 ***/
-user_pref("javascript.use_us_english_locale", true); // [HIDDEN PREF]
/*** [SECTION 0300]: QUIETER FOX ***/
user_pref("_user.js.parrot", "0300 syntax error: the parrot's not pinin' for the fjords!");
@@ -128,50 +117,22 @@ user_pref("extensions.getAddons.showPane", false); // [HIDDEN PREF]
/* 0321: disable recommendations in about:addons' Extensions and Themes panes [FF68+] ***/
user_pref("extensions.htmlaboutaddons.recommendations.enabled", false);
/* 0322: disable personalized Extension Recommendations in about:addons and AMO [FF65+]
- * [NOTE] This pref has no effect when Health Reports (0331) are disabled
- * [SETTING] Privacy & Security>Firefox Data Collection & Use>Allow Firefox to make personalized extension recommendations
+ * [NOTE] This pref has no effect when Health Reports (8501) are disabled
+ * [SETTING] Privacy & Security>Firefox Data Collection and Use>Allow personalized extension recommendations
* [1] https://support.mozilla.org/kb/personalized-extension-recommendations ***/
user_pref("browser.discovery.enabled", false);
+/* 0323: disable shopping experience [FF116+]
+ * [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1840156#c0 ***/
+user_pref("browser.shopping.experience2023.enabled", false); // [DEFAULT: false]
/** TELEMETRY ***/
-/* 0330: disable new data submission [FF41+]
- * If disabled, no policy is shown or upload takes place, ever
- * [1] https://bugzilla.mozilla.org/1195552 ***/
-user_pref("datareporting.policy.dataSubmissionEnabled", false);
-/* 0331: disable Health Reports
- * [SETTING] Privacy & Security>Firefox Data Collection & Use>Allow Firefox to send technical... data ***/
-user_pref("datareporting.healthreport.uploadEnabled", false);
-/* 0332: disable telemetry
- * The "unified" pref affects the behavior of the "enabled" pref
- * - If "unified" is false then "enabled" controls the telemetry module
- * - If "unified" is true then "enabled" only controls whether to record extended data
- * [NOTE] "toolkit.telemetry.enabled" is now LOCKED to reflect prerelease (true) or release builds (false) [2]
- * [1] https://firefox-source-docs.mozilla.org/toolkit/components/telemetry/telemetry/internals/preferences.html
- * [2] https://medium.com/georg-fritzsche/data-preference-changes-in-firefox-58-2d5df9c428b5 ***/
-user_pref("toolkit.telemetry.unified", false);
-user_pref("toolkit.telemetry.enabled", false); // see [NOTE]
-user_pref("toolkit.telemetry.server", "data:,");
-user_pref("toolkit.telemetry.archive.enabled", false);
-user_pref("toolkit.telemetry.newProfilePing.enabled", false); // [FF55+]
-user_pref("toolkit.telemetry.shutdownPingSender.enabled", false); // [FF55+]
-user_pref("toolkit.telemetry.updatePing.enabled", false); // [FF56+]
-user_pref("toolkit.telemetry.bhrPing.enabled", false); // [FF57+] Background Hang Reporter
-user_pref("toolkit.telemetry.firstShutdownPing.enabled", false); // [FF57+]
-/* 0333: disable Telemetry Coverage
- * [1] 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", "");
-/* 0334: disable PingCentre telemetry (used in several System Add-ons) [FF57+]
- * Defense-in-depth: currently covered by 0331 ***/
-user_pref("browser.ping-centre.telemetry", false);
/* 0335: disable Firefox Home (Activity Stream) telemetry ***/
user_pref("browser.newtabpage.activity-stream.feeds.telemetry", false);
user_pref("browser.newtabpage.activity-stream.telemetry", false);
/** STUDIES ***/
/* 0340: disable Studies
- * [SETTING] Privacy & Security>Firefox Data Collection & Use>Allow Firefox to install and run studies ***/
+ * [SETTING] Privacy & Security>Firefox Data Collection and Use>Install and run studies ***/
user_pref("app.shield.optoutstudies.enabled", false);
/* 0341: disable Normandy/Shield [FF60+]
* Shield is a telemetry system that can push and test "recipes"
@@ -185,7 +146,7 @@ user_pref("breakpad.reportURL", "");
user_pref("browser.tabs.crashReporting.sendReport", false); // [FF44+]
// user_pref("browser.crashReports.unsubmittedCheck.enabled", false); // [FF51+] [DEFAULT: false]
/* 0351: enforce no submission of backlogged Crash Reports [FF58+]
- * [SETTING] Privacy & Security>Firefox Data Collection & Use>Allow Firefox to send backlogged crash reports ***/
+ * [SETTING] Privacy & Security>Firefox Data Collection and Use>Send backlogged crash reports ***/
user_pref("browser.crashReports.unsubmittedCheck.autoSubmit2", false); // [DEFAULT: false]
/** OTHER ***/
@@ -243,7 +204,7 @@ user_pref("network.prefetch-next", false);
/* 0602: disable DNS prefetching
* [1] https://developer.mozilla.org/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control ***/
user_pref("network.dns.disablePrefetch", true);
- // user_pref("network.dns.disablePrefetchFromHTTPS", true); // [DEFAULT: true]
+user_pref("network.dns.disablePrefetchFromHTTPS", true);
/* 0603: disable predictor / prefetching ***/
user_pref("network.predictor.enabled", false);
user_pref("network.predictor.enable-prefetch", false); // [FF48+] [DEFAULT: false]
@@ -256,20 +217,8 @@ user_pref("browser.places.speculativeConnect.enabled", false);
* [1] https://www.bleepingcomputer.com/news/software/major-browsers-to-prevent-disabling-of-click-tracking-privacy-risk/ ***/
// user_pref("browser.send_pings", false); // [DEFAULT: false]
-/*** [SECTION 0700]: DNS / DoH / PROXY / SOCKS / IPv6 ***/
+/*** [SECTION 0700]: DNS / DoH / PROXY / SOCKS ***/
user_pref("_user.js.parrot", "0700 syntax error: the parrot's given up the ghost!");
-/* 0701: disable IPv6
- * IPv6 can be abused, especially with MAC addresses, and can leak with VPNs: assuming
- * your ISP and/or router and/or website is IPv6 capable. Most sites will fall back to IPv4
- * [SETUP-WEB] PR_CONNECT_RESET_ERROR: this pref *might* be the cause
- * [STATS] Firefox telemetry (Feb 2023) shows ~9% of successful connections are IPv6
- * [NOTE] This is an application level fallback. Disabling IPv6 is best done at an
- * OS/network level, and/or configured properly in VPN setups. If you are not masking your IP,
- * then this won't make much difference. If you are masking your IP, then it can only help.
- * [NOTE] PHP defaults to IPv6 with "localhost". Use "php -S 127.0.0.1:PORT"
- * [TEST] https://ipleak.org/
- * [1] https://www.internetsociety.org/tag/ipv6-security/ (Myths 2,4,5,6) ***/
-user_pref("network.dns.disableIPv6", true);
/* 0702: set the proxy server to do any DNS lookups when using SOCKS
* e.g. in Tor, this stops your local DNS server from knowing your Tor destination
* as a remote Tor node will handle the DNS request
@@ -277,15 +226,15 @@ user_pref("network.dns.disableIPv6", true);
user_pref("network.proxy.socks_remote_dns", true);
/* 0703: disable using UNC (Uniform Naming Convention) paths [FF61+]
* [SETUP-CHROME] Can break extensions for profiles on network shares
- * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/26424 ***/
+ * [1] https://bugzilla.mozilla.org/1413868 ***/
user_pref("network.file.disable_unc_paths", true); // [HIDDEN PREF]
/* 0704: 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 sftp is accepted (FF87+)
+ * dav, cdda, gphoto2, trash, etc. From FF87-117, by default only sftp was accepted
* [1] https://bugzilla.mozilla.org/1433507
* [2] https://en.wikipedia.org/wiki/GVfs
* [3] https://en.wikipedia.org/wiki/GIO_(software) ***/
-user_pref("network.gio.supported-protocols", ""); // [HIDDEN PREF]
+user_pref("network.gio.supported-protocols", ""); // [HIDDEN PREF] [DEFAULT: ""]
/* 0705: disable proxy direct failover for system requests [FF91+]
* [WARNING] Default true is a security feature against malicious extensions [1]
* [SETUP-CHROME] If you use a proxy and you trust your extensions
@@ -296,66 +245,72 @@ user_pref("network.gio.supported-protocols", ""); // [HIDDEN PREF]
* [WARNING] If false, this will break the fallback for some security features
* [SETUP-CHROME] If you use a proxy and you understand the security impact
* [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1732792,1733994,1733481 ***/
- // user_pref("network.proxy.allow_bypass", false); // [HIDDEN PREF FF95-96]
-/* 0710: disable DNS-over-HTTPS (DoH) rollout [FF60+]
- * 0=off by default, 2=TRR (Trusted Recursive Resolver) first, 3=TRR only, 5=explicitly off
+ // user_pref("network.proxy.allow_bypass", false);
+/* 0710: enable DNS-over-HTTPS (DoH) [FF60+]
+ * 0=default, 2=increased (TRR (Trusted Recursive Resolver) first), 3=max (TRR only), 5=off (no rollout)
* see "doh-rollout.home-region": USA 2019, Canada 2021, Russia/Ukraine 2022 [3]
+ * [SETTING] Privacy & Security>DNS over HTTPS
* [1] https://hacks.mozilla.org/2018/05/a-cartoon-intro-to-dns-over-https/
* [2] https://wiki.mozilla.org/Security/DOH-resolver-policy
- * [3] https://support.mozilla.org/en-US/kb/firefox-dns-over-https
+ * [3] https://support.mozilla.org/kb/firefox-dns-over-https
* [4] https://www.eff.org/deeplinks/2020/12/dns-doh-and-odoh-oh-my-year-review-2020 ***/
- // user_pref("network.trr.mode", 5);
+ // user_pref("network.trr.mode", 3);
+/* 0712: set DoH provider
+ * The custom uri is the value shown when you "Choose provider>Custom>"
+ * [NOTE] If you USE custom then "network.trr.uri" should be set the same
+ * [SETTING] Privacy & Security>DNS over HTTPS>Increased/Max>Choose provider ***/
+ // user_pref("network.trr.uri", "https://example.dns");
+ // user_pref("network.trr.custom_uri", "https://example.dns");
/*** [SECTION 0800]: LOCATION BAR / SEARCH BAR / SUGGESTIONS / HISTORY / FORMS ***/
user_pref("_user.js.parrot", "0800 syntax error: the parrot's ceased to be!");
-/* 0801: 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] Override this if you trust and use a privacy respecting search engine ***/
-user_pref("keyword.enabled", false);
-/* 0802: 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); // [DEFAULT: false FF104+]
-/* 0804: disable live search suggestions
- * [NOTE] Both must be true for the location bar to work
- * [SETUP-CHROME] Override 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);
-/* 0805: disable location bar making speculative connections [FF56+]
+/* 0801: disable location bar making speculative connections [FF56+]
* [1] https://bugzilla.mozilla.org/1348275 ***/
user_pref("browser.urlbar.speculativeConnect.enabled", false);
-/* 0806: disable location bar leaking single words to a DNS provider **after searching** [FF78+]
- * 0=never resolve, 1=use heuristics, 2=always resolve
- * [1] https://bugzilla.mozilla.org/1642623 ***/
-user_pref("browser.urlbar.dnsResolveSingleWordsAfterSearch", 0); // [DEFAULT: 0 FF104+]
-/* 0807: disable location bar contextual suggestions [FF92+]
- * [SETTING] Privacy & Security>Address Bar>Suggestions from...
+/* 0802: disable location bar contextual suggestions
+ * [NOTE] The UI is controlled by the .enabled pref
+ * [SETTING] Search>Address Bar>Suggestions from...
* [1] https://blog.mozilla.org/data/2021/09/15/data-and-firefox-suggest/ ***/
+user_pref("browser.urlbar.quicksuggest.enabled", false); // [FF92+]
user_pref("browser.urlbar.suggest.quicksuggest.nonsponsored", false); // [FF95+]
-user_pref("browser.urlbar.suggest.quicksuggest.sponsored", false);
-/* 0808: disable tab-to-search [FF85+]
- * Alternatively, you can exclude on a per-engine basis by unchecking them in Options>Search
- * [SETTING] Privacy & Security>Address Bar>When using the address bar, suggest>Search engines ***/
- // user_pref("browser.urlbar.suggest.engines", false);
+user_pref("browser.urlbar.suggest.quicksuggest.sponsored", false); // [FF92+]
+/* 0803: disable live search suggestions
+ * [NOTE] Both must be true for live search to work in the location bar
+ * [SETUP-CHROME] Override these if you trust and use a privacy respecting search engine
+ * [SETTING] Search>Show search suggestions | Show search suggestions in address bar results ***/
+user_pref("browser.search.suggest.enabled", false);
+user_pref("browser.urlbar.suggest.searches", false);
+/* 0805: disable urlbar trending search suggestions [FF118+]
+ * [SETTING] Search>Search Suggestions>Show trending search suggestions (FF119) ***/
+user_pref("browser.urlbar.trending.featureGate", false);
+/* 0806: disable urlbar suggestions ***/
+user_pref("browser.urlbar.addons.featureGate", false); // [FF115+]
+user_pref("browser.urlbar.fakespot.featureGate", false); // [FF130+] [DEFAULT: false]
+user_pref("browser.urlbar.mdn.featureGate", false); // [FF117+] [HIDDEN PREF]
+user_pref("browser.urlbar.pocket.featureGate", false); // [FF116+] [DEFAULT: false]
+user_pref("browser.urlbar.weather.featureGate", false); // [FF108+] [DEFAULT: false]
+user_pref("browser.urlbar.yelp.featureGate", false); // [FF124+]
+/* 0807: disable urlbar clipboard suggestions [FF118+] ***/
+ // user_pref("browser.urlbar.clipboard.featureGate", false);
+/* 0808: disable recent searches [FF120+]
+ * [NOTE] Recent searches are cleared with history (2811+)
+ * [1] https://support.mozilla.org/kb/search-suggestions-firefox ***/
+ // user_pref("browser.urlbar.recentsearches.featureGate", false);
/* 0810: disable search and form history
+ * [NOTE] We also clear formdata on exit (2811+)
* [SETUP-WEB] Be aware that autocomplete form data can be read by third parties [1][2]
- * [NOTE] We also clear formdata on exit (2811)
* [SETTING] Privacy & Security>History>Custom Settings>Remember search and form history
* [1] https://blog.mindedsecurity.com/2011/10/autocompleteagain.html
* [2] https://bugzilla.mozilla.org/381681 ***/
user_pref("browser.formfill.enable", false);
+/* 0815: disable tab-to-search [FF85+]
+ * Alternatively, you can exclude on a per-engine basis by unchecking them in Options>Search
+ * [SETTING] Search>Address Bar>When using the address bar, suggest>Search engines ***/
+ // user_pref("browser.urlbar.suggest.engines", false);
/* 0820: disable coloring of visited links
* [SETUP-HARDEN] Bulk rapid history sniffing was mitigated in 2010 [1][2]. Slower and more expensive
* redraw timing attacks were largely mitigated in FF77+ [3]. Using RFP (4501) further hampers timing
- * attacks. Don't forget clearing history on exit (2811). However, social engineering [2#limits][4][5]
+ * attacks. Don't forget clearing history on exit (2811+). However, social engineering [2#limits][4][5]
* and advanced targeted timing attacks could still produce usable results
* [1] https://developer.mozilla.org/docs/Web/CSS/Privacy_and_the_:visited_selector
* [2] https://dbaron.org/mozilla/visited-privacy
@@ -363,6 +318,10 @@ user_pref("browser.formfill.enable", false);
* [4] https://earthlng.github.io/testpages/visited_links.html (see github wiki APPENDIX A on how to use)
* [5] https://lcamtuf.blogspot.com/2016/08/css-mix-blend-mode-is-bad-for-keeping.html ***/
// user_pref("layout.css.visited_links_enabled", false);
+/* 0830: enable separate default search engine in Private Windows and its UI setting
+ * [SETTING] Search>Default Search Engine>Choose a different default search engine for Private Windows only ***/
+user_pref("browser.search.separatePrivateDefault", true); // [FF70+]
+user_pref("browser.search.separatePrivateDefault.ui.enabled", true); // [FF71+]
/*** [SECTION 0900]: PASSWORDS
[1] https://support.mozilla.org/kb/use-primary-password-protect-stored-logins-and-pas
@@ -387,14 +346,17 @@ user_pref("network.auth.subresource-http-auth-allow", 1);
* [SETTING] Privacy & Security>Logins and Passwords>Allow Windows single sign-on for...
* [1] https://support.mozilla.org/kb/windows-sso ***/
// user_pref("network.http.windows-sso.enabled", false); // [DEFAULT: false]
+/* 0907: enforce no automatic authentication on Microsoft sites [FF131+] [MAC]
+ * On macOS, SSO only works on corporate devices ***/
+ // user_pref("network.http.microsoft-entra-sso.enabled", false); // [DEFAULT: false]
/*** [SECTION 1000]: DISK AVOIDANCE ***/
user_pref("_user.js.parrot", "1000 syntax error: the parrot's gone to meet 'is maker!");
/* 1001: disable disk cache
- * [SETUP-CHROME] If you think disk cache helps perf, then feel free to override this
- * [NOTE] We also clear cache on exit (2811) ***/
+ * [NOTE] We also clear cache on exit (2811+)
+ * [SETUP-CHROME] If you think disk cache helps perf, then feel free to override this ***/
user_pref("browser.cache.disk.enable", false);
-/* 1002: disable media cache from writing to disk in Private Browsing
+/* 1002: set media cache in Private Browsing to in-memory and increase its maximum size
* [NOTE] MSE (Media Source Extensions) are already stored in-memory in PB ***/
user_pref("browser.privatebrowsing.forceMediaMemoryCache", true); // [FF75+]
user_pref("media.memory_cache_max_size", 65536);
@@ -405,7 +367,7 @@ user_pref("browser.sessionstore.privacy_level", 2);
/* 1005: disable automatic Firefox start and session restore after reboot [FF62+] [WINDOWS]
* [1] https://bugzilla.mozilla.org/603903 ***/
user_pref("toolkit.winRegisterApplicationRestart", false);
-/* 1006: disable favicons in shortcuts
+/* 1006: disable favicons in shortcuts [WINDOWS]
* 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 ***/
@@ -426,7 +388,7 @@ user_pref("_user.js.parrot", "1200 syntax error: the parrot's a stiff!");
* but the problem is that the browser can't know that. Setting this pref to true is the only way for the
* browser to ensure there will be no unsafe renegotiations on the channel between the browser and the server
* [SETUP-WEB] SSL_ERROR_UNSAFE_NEGOTIATION: is it worth overriding this for that one site?
- * [STATS] SSL Labs (Feb 2023) reports over 99.3% of top sites have secure renegotiation [4]
+ * [STATS] SSL Labs (May 2024) reports over 99.7% of top sites have secure renegotiation [4]
* [1] https://wiki.mozilla.org/Security:Renegotiation
* [2] https://datatracker.ietf.org/doc/html/rfc5746
* [3] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3555
@@ -453,22 +415,17 @@ user_pref("security.tls.enable_0rtt_data", false);
* [1] https://en.wikipedia.org/wiki/Ocsp ***/
user_pref("security.OCSP.enabled", 1); // [DEFAULT: 1]
/* 1212: set OCSP fetch failures (non-stapled, see 1211) to hard-fail
- * [SETUP-WEB] SEC_ERROR_OCSP_SERVER_ERROR
+ * [SETUP-WEB] SEC_ERROR_OCSP_SERVER_ERROR | SEC_ERROR_OCSP_UNAUTHORIZED_REQUEST
* 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)
* [1] https://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox/
- * [2] https://www.imperialviolet.org/2014/04/19/revchecking.html ***/
+ * [2] https://www.imperialviolet.org/2014/04/19/revchecking.html
+ * [3] https://letsencrypt.org/2024/12/05/ending-ocsp/ ***/
user_pref("security.OCSP.require", true);
/** CERTS / HPKP (HTTP Public Key Pinning) ***/
-/* 1221: 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
- * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/21686 ***/
-user_pref("security.family_safety.mode", 0);
/* 1223: enable strict PKP (Public Key Pinning)
* 0=disabled, 1=allow user MiTM (default; such as your antivirus), 2=strict
* [SETUP-WEB] MOZILLA_PKIX_ERROR_KEY_PINNING_FAILURE ***/
@@ -477,16 +434,16 @@ user_pref("security.cert_pinning.enforcement_level", 2);
* 0 = disabled
* 1 = consult CRLite but only collect telemetry
* 2 = consult CRLite and enforce both "Revoked" and "Not Revoked" results
- * 3 = consult CRLite and enforce "Not Revoked" results, but defer to OCSP for "Revoked" (FF99+, default FF100+)
+ * 3 = consult CRLite and enforce "Not Revoked" results, but defer to OCSP for "Revoked" (default)
* [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1429800,1670985,1753071
* [2] https://blog.mozilla.org/security/tag/crlite/ ***/
-user_pref("security.remote_settings.crlite_filters.enabled", true);
+user_pref("security.remote_settings.crlite_filters.enabled", true); // [DEFAULT: true FF137+]
user_pref("security.pki.crlite_mode", 2);
/** MIXED CONTENT ***/
/* 1241: disable insecure passive content (such as images) on https pages ***/
// user_pref("security.mixed_content.block_display_content", true); // Defense-in-depth (see 1244)
-/* 1244: enable HTTPS-Only mode in all windows [FF76+]
+/* 1244: enable HTTPS-Only mode in all windows
* When the top-level is HTTPS, insecure subresources are also upgraded (silent fail)
* [SETTING] to add site exceptions: Padlock>HTTPS-Only mode>On (after "Continue to HTTP Site")
* [SETTING] Privacy & Security>HTTPS-Only Mode (and manage exceptions)
@@ -515,30 +472,13 @@ user_pref("security.ssl.treat_unsafe_negotiation_as_broken", true);
* [TEST] https://expired.badssl.com/ ***/
user_pref("browser.xul.error_pages.expert_bad_cert", true);
-/*** [SECTION 1400]: FONTS ***/
-user_pref("_user.js.parrot", "1400 syntax error: the parrot's bereft of life!");
-/* 1402: limit font visibility (Windows, Mac, some Linux) [FF94+]
- * Uses hardcoded lists with two parts: kBaseFonts + kLangPackFonts [1], bundled fonts are auto-allowed
- * In normal windows: uses the first applicable: RFP (4506) over TP over Standard
- * In Private Browsing windows: uses the most restrictive between normal and private
- * 1=only base system fonts, 2=also fonts from optional language packs, 3=also user-installed fonts
- * [1] https://searchfox.org/mozilla-central/search?path=StandardFonts*.inc ***/
- // user_pref("layout.css.font-visibility.private", 1);
- // user_pref("layout.css.font-visibility.standard", 1);
- // user_pref("layout.css.font-visibility.trackingprotection", 1);
-
-/*** [SECTION 1600]: HEADERS / REFERERS
+/*** [SECTION 1600]: REFERERS
full URI: https://example.com:8888/foo/bar.html?id=1234
scheme+host+port+path: https://example.com:8888/foo/bar.html
scheme+host+port: https://example.com:8888
[1] https://feeding.cloud.geek.nz/posts/tweaking-referrer-for-privacy-in-firefox/
***/
user_pref("_user.js.parrot", "1600 syntax error: the parrot rests in peace!");
-/* 1601: control when to send a cross-origin referer
- * 0=always (default), 1=only if base domains match, 2=only if hosts match
- * [SETUP-WEB] Breakage: older modems/routers and some sites e.g banks, vimeo, icloud, instagram
- * If "2" is too strict, then override to "0" and use Smart Referer extension (Strict mode + add exceptions) ***/
-user_pref("network.http.referer.XOriginPolicy", 2);
/* 1602: control the amount of cross-origin information to send [FF52+]
* 0=send full URI (default), 1=scheme+host+port+path, 2=scheme+host+port ***/
user_pref("network.http.referer.XOriginTrimmingPolicy", 2);
@@ -554,6 +494,12 @@ user_pref("privacy.userContext.ui.enabled", true);
* [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);
+/* 1703: set external links to open in site-specific containers [FF123+]
+ * [SETUP-WEB] Depending on your container extension(s) and their settings
+ * true=Firefox will not choose a container (so your extension can)
+ * false=Firefox will choose the container/no-container (default)
+ * [1] https://bugzilla.mozilla.org/1874599 ***/
+ // user_pref("browser.link.force_default_user_context_id_for_external_opens", true);
/*** [SECTION 2000]: PLUGINS / MEDIA / WEBRTC ***/
user_pref("_user.js.parrot", "2000 syntax error: the parrot's snuffed it!");
@@ -561,7 +507,7 @@ user_pref("_user.js.parrot", "2000 syntax error: the parrot's snuffed it!");
user_pref("media.peerconnection.ice.proxy_only_if_behind_proxy", true);
/* 2003: force a single network interface for ICE candidates generation [FF42+]
* When using a system-wide proxy, it uses the proxy interface
- * [1] https://developer.mozilla.org/en-US/docs/Web/API/RTCIceCandidate
+ * [1] https://developer.mozilla.org/docs/Web/API/RTCIceCandidate
* [2] https://wiki.mozilla.org/Media/WebRTC/Privacy ***/
user_pref("media.peerconnection.ice.default_address_only", true);
/* 2004: force exclusion of private IPs from ICE candidates [FF51+]
@@ -571,17 +517,6 @@ user_pref("media.peerconnection.ice.default_address_only", true);
/* 2020: disable GMP (Gecko Media Plugins)
* [1] https://wiki.mozilla.org/GeckoMediaPlugins ***/
// user_pref("media.gmp-provider.enabled", false);
-/* 2021: disable widevine CDM (Content Decryption Module)
- * [NOTE] This is covered by the EME master switch (2022) ***/
- // user_pref("media.gmp-widevinecdm.enabled", false);
-/* 2022: disable all DRM content (EME: Encryption Media Extension)
- * Optionally hide the setting which also disables the DRM prompt
- * [SETUP-WEB] e.g. Netflix, Amazon Prime, Hulu, HBO, Disney+, Showtime, Starz, DirectTV
- * [SETTING] General>DRM Content>Play DRM-controlled content
- * [TEST] https://bitmovin.com/demos/drm
- * [1] 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);
- // user_pref("browser.eme.ui.enabled", false);
/*** [SECTION 2400]: DOM (DOCUMENT OBJECT MODEL) ***/
user_pref("_user.js.parrot", "2400 syntax error: the parrot's kicked the bucket!");
@@ -590,11 +525,9 @@ user_pref("dom.disable_window_move_resize", true);
/*** [SECTION 2600]: MISCELLANEOUS ***/
user_pref("_user.js.parrot", "2600 syntax error: the parrot's run down the curtain!");
-/* 2601: prevent accessibility services from accessing your browser [RESTART]
- * [1] https://support.mozilla.org/kb/accessibility-services ***/
-user_pref("accessibility.force_disabled", 1);
-/* 2603: remove temp files opened with an external application
- * [1] https://bugzilla.mozilla.org/302433 ***/
+/* 2603: remove temp files opened from non-PB windows with an external application
+ * [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=302433,1738574 ***/
+user_pref("browser.download.start_downloads_in_tmp_dir", true); // [FF102+]
user_pref("browser.helperApps.deleteTempFileOnExit", true);
/* 2606: disable UITour backend so there is no chance that a remote page can use it ***/
user_pref("browser.uitour.enabled", false);
@@ -602,9 +535,6 @@ user_pref("browser.uitour.enabled", false);
/* 2608: reset remote debugging to disabled
* [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/16222 ***/
user_pref("devtools.debugger.remote-enabled", false); // [DEFAULT: false]
-/* 2611: disable middle mouse click opening links from clipboard
- * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/10089 ***/
-user_pref("middlemouse.contentLoadURL", false);
/* 2615: disable websites overriding Firefox's keyboard shortcuts [FF58+]
* 0 (default) or 1=allow, 2=block
* [SETTING] to add site exceptions: Ctrl+I>Permissions>Override Keyboard Shortcuts ***/
@@ -612,8 +542,6 @@ user_pref("middlemouse.contentLoadURL", false);
/* 2616: remove special permissions for certain mozilla domains [FF35+]
* [1] resource://app/defaults/permissions ***/
user_pref("permissions.manager.defaultsUrl", "");
-/* 2617: remove webchannel whitelist ***/
-user_pref("webchannel.allowObject.urlWhitelist", "");
/* 2619: use Punycode in Internationalized Domain Names to eliminate possible spoofing
* [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)
@@ -634,14 +562,15 @@ user_pref("network.IDN_show_punycode", true);
* [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=pdf.js+firefox ***/
user_pref("pdfjs.disabled", false); // [DEFAULT: false]
user_pref("pdfjs.enableScripting", false); // [FF86+]
-/* 2621: disable links launching Windows Store on Windows 8/8.1/10 [WINDOWS] ***/
-user_pref("network.protocol-handler.external.ms-windows-store", false);
-/* 2623: 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
- * [1] https://groups.google.com/forum/#!topic/mozilla.dev.platform/BdFOMAuCGW8/discussion ***/
-user_pref("permissions.delegation.enabled", false);
+/* 2624: disable middle click on new tab button opening URLs or searches using clipboard [FF115+] */
+user_pref("browser.tabs.searchclipboardfor.middleclick", false); // [DEFAULT: false NON-LINUX]
+/* 2630: disable content analysis by DLP (Data Loss Prevention) agents
+ * DLP agents are background processes on managed computers that allow enterprises to monitor locally running
+ * applications for data exfiltration events, which they can allow/block based on customer defined DLP policies.
+ * 0=Block all requests, 1=Warn on all requests (which lets the user decide), 2=Allow all requests
+ * [1] https://github.com/chromium/content_analysis_sdk */
+user_pref("browser.contentanalysis.enabled", false); // [FF121+] [DEFAULT: false]
+user_pref("browser.contentanalysis.default_result", 0); // [FF127+] [DEFAULT: 0]
/** DOWNLOADS ***/
/* 2651: enable user interaction for security by always asking where to download
@@ -657,13 +586,13 @@ user_pref("browser.download.manager.addToRecentDocs", false);
user_pref("browser.download.always_ask_before_handling_new_types", true);
/** EXTENSIONS ***/
-/* 2660: 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
- * [1] https://mike.kaply.com/2012/02/21/understanding-add-on-scopes/
- * [1] https://archive.is/DYjAM (archived) ***/
+/* 2660: limit allowed extension directories
+ * 1=profile, 2=user, 4=application, 8=system, 16=temporary, 31=all
+ * The pref value represents the sum: e.g. 5 would be profile and application directories
+ * [SETUP-CHROME] Breaks usage of files which are installed outside allowed directories
+ * [1] https://archive.is/DYjAM ***/
user_pref("extensions.enabledScopes", 5); // [HIDDEN PREF]
-user_pref("extensions.autoDisableScopes", 15); // [DEFAULT: 15]
+ // user_pref("extensions.autoDisableScopes", 15); // [DEFAULT: 15]
/* 2661: disable bypassing 3rd party extension install prompts [FF82+]
* [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1659530,1681331 ***/
user_pref("extensions.postDownloadThirdPartyPrompt", false);
@@ -680,97 +609,129 @@ user_pref("_user.js.parrot", "2700 syntax error: the parrot's joined the bleedin
* [1] https://blog.mozilla.org/security/2021/02/23/total-cookie-protection/
* [SETTING] to add site exceptions: Urlbar>ETP Shield
* [SETTING] to manage site exceptions: Options>Privacy & Security>Enhanced Tracking Protection>Manage Exceptions ***/
-user_pref("browser.contentblocking.category", "strict");
+user_pref("browser.contentblocking.category", "strict"); // [HIDDEN PREF]
/* 2702: disable ETP web compat features [FF93+]
* [SETUP-HARDEN] Includes skip lists, heuristics (SmartBlock) and automatic grants
* Opener and redirect heuristics are granted for 30 days, see [3]
* [1] https://blog.mozilla.org/security/2021/07/13/smartblock-v2/
* [2] https://hg.mozilla.org/mozilla-central/rev/e5483fd469ab#l4.12
- * [3] https://developer.mozilla.org/en-US/docs/Web/Privacy/State_Partitioning#storage_access_heuristics ***/
+ * [3] https://developer.mozilla.org/docs/Web/Privacy/State_Partitioning#storage_access_heuristics ***/
// user_pref("privacy.antitracking.enableWebcompat", false);
-/* 2710: enable state partitioning of service workers [FF96+] ***/
-user_pref("privacy.partition.serviceWorkers", true); // [DEFAULT: true FF105+]
-/* 2720: enable APS (Always Partitioning Storage) ***/
-user_pref("privacy.partition.always_partition_third_party_non_cookie_storage", true); // [FF104+] [DEFAULT: true FF109+]
-user_pref("privacy.partition.always_partition_third_party_non_cookie_storage.exempt_sessionstorage", false); // [FF105+] [DEFAULT: false FF109+]
/*** [SECTION 2800]: SHUTDOWN & SANITIZING ***/
user_pref("_user.js.parrot", "2800 syntax error: the parrot's bleedin' demised!");
/* 2810: enable Firefox to clear items on shutdown
+ * [NOTE] In FF129+ clearing "siteSettings" on shutdown (2811+), or manually via site data (2820+) and
+ * via history (2830), will no longer remove sanitize on shutdown "cookie and site data" site exceptions (2815)
* [SETTING] Privacy & Security>History>Custom Settings>Clear history when Firefox closes | Settings ***/
user_pref("privacy.sanitize.sanitizeOnShutdown", true);
/** SANITIZE ON SHUTDOWN: IGNORES "ALLOW" SITE EXCEPTIONS ***/
-/* 2811: set/enforce what items to clear on shutdown (if 2810 is true) [SETUP-CHROME]
- * [NOTE] If "history" is true, downloads will also be cleared
- * [NOTE] "sessions": Active Logins: refers to HTTP Basic Authentication [1], not logins via cookies
- * [1] https://en.wikipedia.org/wiki/Basic_access_authentication ***/
-user_pref("privacy.clearOnShutdown.cache", true); // [DEFAULT: true]
-user_pref("privacy.clearOnShutdown.downloads", true); // [DEFAULT: true]
-user_pref("privacy.clearOnShutdown.formdata", true); // [DEFAULT: true]
-user_pref("privacy.clearOnShutdown.history", true); // [DEFAULT: true]
-user_pref("privacy.clearOnShutdown.sessions", true); // [DEFAULT: true]
- // user_pref("privacy.clearOnShutdown.siteSettings", false); // [DEFAULT: false]
-/* 2812: set Session Restore to clear on shutdown (if 2810 is true) [FF34+]
- * [NOTE] Not needed if Session Restore is not used (0102) or it is already cleared with history (2811)
+/* 2811: set/enforce clearOnShutdown items (if 2810 is true) [SETUP-CHROME] [FF128+] ***/
+user_pref("privacy.clearOnShutdown_v2.cache", true); // [DEFAULT: true]
+user_pref("privacy.clearOnShutdown_v2.historyFormDataAndDownloads", true); // [DEFAULT: true]
+ // user_pref("privacy.clearOnShutdown_v2.siteSettings", false); // [DEFAULT: false]
+/* 2812: set/enforce clearOnShutdown items [FF136+] ***/
+user_pref("privacy.clearOnShutdown_v2.browsingHistoryAndDownloads", true); // [DEFAULT: true]
+user_pref("privacy.clearOnShutdown_v2.downloads", true);
+user_pref("privacy.clearOnShutdown_v2.formdata", true);
+/* 2813: set Session Restore to clear on shutdown (if 2810 is true) [FF34+]
+ * [NOTE] Not needed if Session Restore is not used (0102) or it is already cleared with history (2811+)
* [NOTE] If true, this prevents resuming from crashes (also see 5008) ***/
// user_pref("privacy.clearOnShutdown.openWindows", true);
-/** SANITIZE ON SHUTDOWN: RESPECTS "ALLOW" SITE EXCEPTIONS FF103+ ***/
-/* 2815: set "Cookies" and "Site Data" to clear on shutdown (if 2810 is true) [SETUP-CHROME]
- * [NOTE] Exceptions: A "cookie" block permission also controls "offlineApps" (see note below).
- * serviceWorkers require an "Allow" permission. For cross-domain logins, add exceptions for
- * both sites e.g. https://www.youtube.com (site) + https://accounts.google.com (single sign on)
- * [NOTE] "offlineApps": Offline Website Data: localStorage, service worker cache, QuotaManager (IndexedDB, asm-cache)
+/** SANITIZE ON SHUTDOWN: RESPECTS "ALLOW" SITE EXCEPTIONS ***/
+/* 2815: set "Cookies" and "Site Data" to clear on shutdown (if 2810 is true) [SETUP-CHROME] [FF128+]
+ * [NOTE] Exceptions: For cross-domain logins, add exceptions for both sites
+ * e.g. https://www.youtube.com (site) + https://accounts.google.com (single sign on)
* [WARNING] Be selective with what sites you "Allow", as they also disable partitioning (1767271)
* [SETTING] to add site exceptions: Ctrl+I>Permissions>Cookies>Allow (when on the website in question)
* [SETTING] to manage site exceptions: Options>Privacy & Security>Permissions>Settings ***/
-user_pref("privacy.clearOnShutdown.cookies", true); // Cookies
-user_pref("privacy.clearOnShutdown.offlineApps", true); // Site Data
-/* 2816: set cache to clear on exit [FF96+]
- * [NOTE] We already disable disk cache (1001) and clear on exit (2811) which is more robust
- * [1] https://bugzilla.mozilla.org/1671182 ***/
- // user_pref("privacy.clearsitedata.cache.enabled", true);
+user_pref("privacy.clearOnShutdown_v2.cookiesAndStorage", true);
-/** SANITIZE MANUAL: IGNORES "ALLOW" SITE EXCEPTIONS ***/
-/* 2820: reset default items to clear with Ctrl-Shift-Del [SETUP-CHROME]
- * This dialog can also be accessed from the menu History>Clear Recent History
+/** SANITIZE SITE DATA: IGNORES "ALLOW" SITE EXCEPTIONS ***/
+/* 2820: set manual "Clear Data" items [SETUP-CHROME] [FF128+]
* Firefox remembers your last choices. This will reset them when you start Firefox
- * [NOTE] Regardless of what you set "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); // [DEFAULT: true]
-user_pref("privacy.cpd.formdata", true); // [DEFAULT: true]
-user_pref("privacy.cpd.history", true); // [DEFAULT: true]
-user_pref("privacy.cpd.sessions", true); // [DEFAULT: true]
-user_pref("privacy.cpd.offlineApps", false); // [DEFAULT: false]
-user_pref("privacy.cpd.cookies", false);
- // user_pref("privacy.cpd.downloads", true); // not used, see note above
- // user_pref("privacy.cpd.openWindows", false); // Session Restore
- // user_pref("privacy.cpd.passwords", false);
- // user_pref("privacy.cpd.siteSettings", false);
-/* 2822: reset default "Time range to clear" for "Clear Recent History" (2820)
+ * [SETTING] Privacy & Security>Browser Privacy>Cookies and Site Data>Clear Data ***/
+user_pref("privacy.clearSiteData.cache", true);
+user_pref("privacy.clearSiteData.cookiesAndStorage", false); // keep false until it respects "allow" site exceptions
+user_pref("privacy.clearSiteData.historyFormDataAndDownloads", true);
+ // user_pref("privacy.clearSiteData.siteSettings", false);
+/* 2821: set manual "Clear Data" items [FF136+] ***/
+user_pref("privacy.clearSiteData.browsingHistoryAndDownloads", true);
+user_pref("privacy.clearSiteData.formdata", true);
+
+/** SANITIZE HISTORY: IGNORES "ALLOW" SITE EXCEPTIONS ***/
+/* 2830: set manual "Clear History" items, also via Ctrl-Shift-Del [SETUP-CHROME] [FF128+]
+ * Firefox remembers your last choices. This will reset them when you start Firefox
+ * [SETTING] Privacy & Security>History>Custom Settings>Clear History ***/
+user_pref("privacy.clearHistory.cache", true); // [DEFAULT: true]
+user_pref("privacy.clearHistory.cookiesAndStorage", false);
+user_pref("privacy.clearHistory.historyFormDataAndDownloads", true); // [DEFAULT: true]
+ // user_pref("privacy.clearHistory.siteSettings", false); // [DEFAULT: false]
+/* 2831: set manual "Clear History" items [FF136+] ***/
+user_pref("privacy.clearHistory.browsingHistoryAndDownloads", true); // [DEFAULT: true]
+user_pref("privacy.clearHistory.formdata", true);
+
+/** SANITIZE MANUAL: TIMERANGE ***/
+/* 2840: set "Time range to clear" for "Clear Data" (2820+) and "Clear History" (2830+)
* 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
* [NOTE] Values 5 (last 5 minutes) and 6 (last 24 hours) are not listed in the dropdown,
* which will display a blank value, and are not guaranteed to work ***/
user_pref("privacy.sanitize.timeSpan", 0);
-/*** [SECTION 4500]: RFP (RESIST FINGERPRINTING)
- RFP covers a wide range of ongoing fingerprinting solutions.
- It is an all-or-nothing buy in: you cannot pick and choose what parts you want
+/*** [SECTION 4000]: FPP (fingerprintingProtection)
+ RFP (4501) overrides FPP
+
+ In FF118+ FPP is on by default in private windows (4001) and in FF119+ is controlled
+ by ETP (2701). FPP will also use Remote Services in future to relax FPP protections
+ on a per site basis for compatibility (4004).
+
+ https://searchfox.org/mozilla-central/source/toolkit/components/resistfingerprinting/RFPTargetsDefault.inc
+
+ [NOTE] RFPTargets + granular overrides are somewhat experimental and may produce unexpected results
+ - e.g. FrameRate can only be controlled per process, not per origin
+
+ 1826408 - restrict fonts to system (kBaseFonts + kLangPackFonts) (Windows, Mac, some Linux)
+ https://searchfox.org/mozilla-central/search?path=StandardFonts*.inc
+ 1858181 - subtly randomize canvas per eTLD+1, per session and per window-mode (FF120+)
+***/
+user_pref("_user.js.parrot", "4000 syntax error: the parrot's bereft of life!");
+/* 4001: enable FPP in PB mode [FF114+]
+ * [NOTE] In FF119+, FPP for all modes (7016) is enabled with ETP Strict (2701) ***/
+ // user_pref("privacy.fingerprintingProtection.pbmode", true); // [DEFAULT: true]
+/* 4002: set global FPP overrides [FF114+]
+ * uses "RFPTargets" [1] which despite the name these are not used by RFP
+ * e.g. "+AllTargets,-CSSPrefersColorScheme,-JSDateTimeUTC" = all targets but allow prefers-color-scheme and do not change timezone
+ * e.g. "-AllTargets,+CanvasRandomization,+JSDateTimeUTC" = no targets but do use FPP canvas and change timezone
+ * [NOTE] Not supported by arkenfox. Either use RFP or FPP at defaults
+ * [1] https://searchfox.org/mozilla-central/source/toolkit/components/resistfingerprinting/RFPTargets.inc ***/
+ // user_pref("privacy.fingerprintingProtection.overrides", "");
+/* 4003: set granular FPP overrides
+ * JSON format: e.g."[{\"firstPartyDomain\": \"netflix.com\", \"overrides\": \"-CanvasRandomization,-FrameRate,\"}]"
+ * [NOTE] Not supported by arkenfox. Either use RFP or FPP at defaults ***/
+ // user_pref("privacy.fingerprintingProtection.granularOverrides", "");
+/* 4004: disable remote FPP overrides [FF127+] ***/
+ // user_pref("privacy.fingerprintingProtection.remoteOverrides.enabled", false);
+
+/*** [SECTION 4500]: OPTIONAL RFP (resistFingerprinting)
+ RFP overrides FPP (4000)
+
+ FF128+ Arkenfox by default uses FPP (automatically enabled with ETP Strict). For most people
+ this is all you need. To use RFP instead, add RFP (4501) to your overrides, and optionally
+ add letterboxing (4504), spoof_english (4506), and webgl (4520).
+
+ RFP is an all-or-nothing buy in: you cannot pick and choose what parts you want
[WARNING] DO NOT USE extensions to alter RFP protected metrics
418986 - limit window.screen & CSS media queries (FF41)
- [TEST] https://arkenfox.github.io/TZP/tzp.html#screen
- 1281949 - spoof screen orientation (FF50)
- 1330890 - spoof timezone as UTC0 (FF55)
1360039 - spoof navigator.hardwareConcurrency as 2 (FF55)
FF56
- 1369303 - spoof/disable performance API
1333651 - spoof User Agent & Navigator API
- version: android version spoofed as ESR
- OS: JS spoofed as Windows 10, OS 10.15, Android 10, or Linux | HTTP Headers spoofed as Windows or Android
+ JS: spoofed as Windows 10, OS 10.15, Android 10, or Linux
+ HTTP Header: spoofed as Windows 10 or Android 10.15 until FF136 then matches JS spoof
1369319 - disable device sensor API
1369357 - disable site specific zoom
1337161 - hide gamepads from content
@@ -780,20 +741,19 @@ user_pref("privacy.sanitize.timeSpan", 0);
1369309 - spoof media statistics
1382499 - reduce screen co-ordinate fingerprinting in Touch API
1217290 & 1409677 - enable some fingerprinting resistance for WebGL
- 1382545 - reduce fingerprinting in Animation API
1354633 - limit MediaError.message to a whitelist
FF58+
1372073 - spoof/block fingerprinting in MediaDevices API (FF59)
Spoof: enumerate devices as one "Internal Camera" and one "Internal Microphone"
Block: suppresses the ondevicechange event
- 1039069 - warn when language prefs are not set to "en*" (also see 0210, 0211) (FF59)
+ 1039069 - warn when language prefs are not set to "en*" (FF59)
1222285 & 1433592 - spoof keyboard events and suppress keyboard modifier events (FF59)
Spoofing mimics the content language of the document. Currently it only supports en-US.
Modifier events suppressed are SHIFT and both ALT keys. Chrome is not affected.
1337157 - disable WebGL debug renderer info (FF60)
1459089 - disable OS locale in HTTP Accept-Language headers (ANDROID) (FF62)
1479239 - return "no-preference" with prefers-reduced-motion (FF63)
- 1363508 - spoof/suppress Pointer Events (FF64)
+ 1363508 & 1826051 - spoof/suppress Pointer Events (FF64, FF132)
1492766 - spoof pointerEvent.pointerid (FF65)
1485266 - disable exposure of system colors to CSS or canvas (FF67)
1494034 - return "light" with prefers-color-scheme (FF67)
@@ -801,20 +761,32 @@ user_pref("privacy.sanitize.timeSpan", 0);
1595823 - return audioContext sampleRate as 44100 (FF72)
1607316 - spoof pointer as coarse and hover as none (ANDROID) (FF74)
1621433 - randomize canvas (previously FF58+ returned an all-white canvas) (FF78)
+ 1506364 - return "no-preference" with prefers-contrast (FF80)
1653987 - limit font visibility to bundled and "Base Fonts" (Windows, Mac, some Linux) (FF80)
1461454 - spoof smooth=true and powerEfficient=false for supported media in MediaCapabilities (FF82)
531915 - use fdlibm's sin, cos and tan in jsmath (FF93, ESR91.1)
- 1756280 - enforce navigator.pdfViewerEnabled as true and plugins/mimeTypes as hard-coded values (FF100)
+ 1756280 - enforce navigator.pdfViewerEnabled as true and plugins/mimeTypes as hard-coded values (FF100-115)
1692609 - reduce JS timing precision to 16.67ms (previously FF55+ was 100ms) (FF102)
1422237 - return "srgb" with color-gamut (FF110)
+ 1794628 - return "none" with inverted-colors (FF114)
+ 1787790 - normalize system fonts (FF128)
+ 1835987 - spoof timezone as Atlantic/Reykjavik (previously FF55+ was UTC) (FF128)
+ 1834307 - always use smooth scrolling (FF132)
+ 1918202 - spoof screen orientation based on spoofed screen size and platform (FF132)
+ previously it always returned landscape-primary and an angle of 0 (FF50+)
+ 1390465 - load all subtitles in WebVTT (Video Text Tracks) (FF133)
+ 1873382 - make spoofed devicePixelRatio and CSS media queries match (FF133)
+ previously FF41+ devicePixelRatio was hardcoded as 1 and FF127+ as 2
+ previously FF41+ CSS media queries were spoofed as zoom level at a devicePixelRatio of 1
***/
user_pref("_user.js.parrot", "4500 syntax error: the parrot's popped 'is clogs");
-/* 4501: enable privacy.resistFingerprinting [FF41+]
- * [SETUP-WEB] RFP can cause some website breakage: mainly canvas, use a site exception via the urlbar
- * RFP also has a few side effects: mainly timezone is UTC0, and websites will prefer light theme
- * [1] https://bugzilla.mozilla.org/418986 ***/
-user_pref("privacy.resistFingerprinting", true);
-/* 4502: set new window size rounding max values [FF55+]
+/* 4501: enable RFP
+ * [NOTE] pbmode applies if true and the original pref is false
+ * [SETUP-WEB] RFP can cause some website breakage: mainly canvas, use a canvas site exception via the urlbar.
+ * RFP also has a few side effects: mainly that timezone is GMT, and websites will prefer light theme ***/
+ // user_pref("privacy.resistFingerprinting", true); // [FF41+]
+ // user_pref("privacy.resistFingerprinting.pbmode", true); // [FF114+]
+/* 4502: set RFP new window size max rounded values [FF55+]
* [SETUP-CHROME] sizes round down in hundreds: width to 200s and height to 100s, to fit your screen
* [1] https://bugzilla.mozilla.org/1330882 ***/
user_pref("privacy.window.maxInnerWidth", 1600);
@@ -822,8 +794,8 @@ user_pref("privacy.window.maxInnerHeight", 900);
/* 4503: disable mozAddonManager Web API [FF57+]
* [NOTE] To allow extensions to work on AMO, you also need 2662
* [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1384330,1406795,1415644,1453988 ***/
-user_pref("privacy.resistFingerprinting.block_mozAddonManager", true); // [HIDDEN PREF]
-/* 4504: enable RFP letterboxing [FF67+]
+user_pref("privacy.resistFingerprinting.block_mozAddonManager", true);
+/* 4504: enable letterboxing [FF67+]
* Dynamically resizes the inner window by applying margins in stepped ranges [2]
* If you use the dimension pref, then it will only apply those resolutions.
* The format is "width1xheight1, width2xheight2, ..." (e.g. "800x600, 1000x1000")
@@ -831,39 +803,36 @@ user_pref("privacy.resistFingerprinting.block_mozAddonManager", true); // [HIDDE
* dislike the margins, then flip this pref, keeping in mind that it is effectively fingerprintable
* [WARNING] DO NOT USE: the dimension pref is only meant for testing
* [1] https://bugzilla.mozilla.org/1407366
- * [2] https://hg.mozilla.org/mozilla-central/rev/6d2d7856e468#l2.32 ***/
-user_pref("privacy.resistFingerprinting.letterboxing", true); // [HIDDEN PREF]
+ * [2] https://hg.mozilla.org/mozilla-central/rev/7211cb4f58ff#l5.13 ***/
+ // user_pref("privacy.resistFingerprinting.letterboxing", true); // [HIDDEN PREF]
// user_pref("privacy.resistFingerprinting.letterboxing.dimensions", ""); // [HIDDEN PREF]
-/* 4505: experimental RFP [FF91+]
- * [WARNING] DO NOT USE unless testing, see [1] comment 12
- * [1] https://bugzilla.mozilla.org/1635603 ***/
+/* 4505: disable RFP by domain [FF91+]
+ * [NOTE] Working examples: "arkenfox.github.io", "*github.io"
+ * Non-working examples: "https://arkenfox.github.io", "github.io", "*arkenfox.github.io" ***/
// user_pref("privacy.resistFingerprinting.exemptedDomains", "*.example.invalid");
- // user_pref("privacy.resistFingerprinting.testGranularityMask", 0);
-/* 4506: set RFP's font visibility level (1402) [FF94+] ***/
- // user_pref("layout.css.font-visibility.resistFingerprinting", 1); // [DEFAULT: 1]
+/* 4506: disable RFP spoof english prompt [FF59+]
+ * 0=prompt, 1=disabled, 2=enabled
+ * [NOTE] When changing from value 2, preferred languages ('intl.accept_languages') is not reset.
+ * [SETUP-WEB] when enabled, sets 'en-US, en' for displaying pages and 'en-US' as locale.
+ * [SETTING] General>Language>Choose your preferred language for displaying pages>Choose>Request English... ***/
+user_pref("privacy.spoof_english", 1);
/* 4510: disable using system colors
* [SETTING] General>Language and Appearance>Fonts and Colors>Colors>Use system colors ***/
user_pref("browser.display.use_system_colors", false); // [DEFAULT: false NON-WINDOWS]
-/* 4511: enforce non-native widget theme
- * Security: removes/reduces system API calls, e.g. win32k API [1]
- * Fingerprinting: provides a uniform look and feel across platforms [2]
- * [1] https://bugzilla.mozilla.org/1381938
- * [2] https://bugzilla.mozilla.org/1411425 ***/
-user_pref("widget.non-native-theme.enabled", true); // [DEFAULT: true]
+/* 4511: disable using system accent colors ***/
+user_pref("widget.non-native-theme.use-theme-accent", false); // [DEFAULT: false WINDOWS]
/* 4512: enforce links targeting new windows to open in a new tab instead
* 1=most recent window or tab, 2=new window, 3=new tab
* Stops malicious window sizes and some screen resolution leaks.
* You can still right-click a link and open in a new window
* [SETTING] General>Tabs>Open links in tabs instead of new windows
- * [TEST] https://arkenfox.github.io/TZP/tzp.html#screen
* [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/9881 ***/
user_pref("browser.link.open_newwindow", 3); // [DEFAULT: 3]
/* 4513: set all open window methods to abide by "browser.link.open_newwindow" (4512)
* [1] https://searchfox.org/mozilla-central/source/dom/tests/browser/browser_test_new_window_from_content.js ***/
user_pref("browser.link.open_newwindow.restriction", 0);
-/* 4520: disable WebGL (Web Graphics Library)
- * [SETUP-WEB] If you need it then override it. RFP still randomizes canvas for naive scripts ***/
-user_pref("webgl.disabled", true);
+/* 4520: disable WebGL (Web Graphics Library) ***/
+ // user_pref("webgl.disabled", true);
/*** [SECTION 5000]: OPTIONAL OPSEC
Disk avoidance, application data isolation, eyeballs...
@@ -912,7 +881,7 @@ user_pref("_user.js.parrot", "5000 syntax error: the parrot's taken 'is last bow
* [1] https://bugzilla.mozilla.org/1281959 ***/
// user_pref("browser.download.forbid_open_with", true);
/* 5010: disable location bar suggestion types
- * [SETTING] Privacy & Security>Address Bar>When using the address bar, suggest ***/
+ * [SETTING] Search>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);
@@ -924,7 +893,7 @@ user_pref("_user.js.parrot", "5000 syntax error: the parrot's taken 'is last bow
* [1] https://support.mozilla.org/kb/address-bar-autocomplete-firefox#w_url-autocomplete ***/
// user_pref("browser.urlbar.autoFill", false);
/* 5013: disable browsing and download history
- * [NOTE] We also clear history and downloads on exit (2811)
+ * [NOTE] We also clear history and downloads on exit (2811+)
* [SETTING] Privacy & Security>History>Custom Settings>Remember browsing and download history ***/
// user_pref("places.history.enabled", false);
/* 5014: disable Windows jumplist [WINDOWS] ***/
@@ -932,27 +901,29 @@ user_pref("_user.js.parrot", "5000 syntax error: the parrot's taken 'is last bow
// user_pref("browser.taskbar.lists.frequent.enabled", false);
// user_pref("browser.taskbar.lists.recent.enabled", false);
// user_pref("browser.taskbar.lists.tasks.enabled", false);
-/* 5015: disable Windows taskbar preview [WINDOWS] ***/
- // user_pref("browser.taskbar.previews.enable", false); // [DEFAULT: false]
/* 5016: discourage downloading to desktop
- * 0=desktop, 1=downloads (default), 2=last used
- * [SETTING] To set your default "downloads": General>Downloads>Save files to ***/
+ * 0=desktop, 1=downloads (default), 2=custom
+ * [SETTING] To set your custom default "downloads": General>Downloads>Save files to ***/
// user_pref("browser.download.folderList", 2);
/* 5017: disable Form Autofill
* If .supportedCountries includes your region (browser.search.region) and .supported
* is "detect" (default), then the UI will show. Stored data is not secure, uses JSON
- * [NOTE] Heuristics controls Form Autofill on forms without @autocomplete attributes
* [SETTING] Privacy & Security>Forms and Autofill>Autofill addresses
* [1] https://wiki.mozilla.org/Firefox/Features/Form_Autofill ***/
// user_pref("extensions.formautofill.addresses.enabled", false); // [FF55+]
// user_pref("extensions.formautofill.creditCards.enabled", false); // [FF56+]
- // user_pref("extensions.formautofill.heuristics.enabled", false); // [FF55+]
/* 5018: limit events that can cause a pop-up ***/
// user_pref("dom.popup_allowed_events", "click dblclick mousedown pointerdown");
/* 5019: disable page thumbnail collection ***/
// user_pref("browser.pagethumbnails.capturing_disabled", true); // [HIDDEN PREF]
/* 5020: disable Windows native notifications and use app notications instead [FF111+] [WINDOWS] ***/
// user_pref("alerts.useSystemBackend.windows.notificationserver.enabled", false);
+/* 5021: 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) ***/
+ // user_pref("keyword.enabled", false);
/*** [SECTION 5500]: OPTIONAL HARDENING
Not recommended. Overriding these can cause breakage and performance issues,
@@ -974,7 +945,7 @@ user_pref("_user.js.parrot", "5500 syntax error: this is an ex-parrot!");
* [2] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=asm.js
* [3] https://rh0dev.github.io/blog/2017/the-return-of-the-jit/ ***/
// user_pref("javascript.options.asmjs", false);
-/* 5505: disable Ion and baseline JIT to harden against JS exploits
+/* 5505: disable Ion and baseline JIT to harden against JS exploits [RESTART]
* [NOTE] When both Ion and JIT are disabled, and trustedprincipals
* is enabled, then Ion can still be used by extensions (1599226)
* [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=firefox+jit
@@ -986,13 +957,37 @@ user_pref("_user.js.parrot", "5500 syntax error: this is an ex-parrot!");
* Vulnerabilities [1] have increasingly been found, including those known and fixed
* in native programs years ago [2]. 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 [2][3]
+ * [STATS] ~0.2% of websites, about half of which are for cryptomining / malvertising [2][3]
* [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=wasm
* [2] https://spectrum.ieee.org/tech-talk/telecom/security/more-worries-over-the-security-of-web-assembly
* [3] https://www.zdnet.com/article/half-of-the-websites-using-webassembly-use-it-for-malicious-purposes ***/
// user_pref("javascript.options.wasm", false);
/* 5507: disable rendering of SVG OpenType fonts ***/
// user_pref("gfx.font_rendering.opentype_svg.enabled", false);
+/* 5508: disable all DRM content (EME: Encryption Media Extension)
+ * Optionally hide the UI setting which also disables the DRM prompt
+ * [SETTING] General>DRM Content>Play DRM-controlled content
+ * [TEST] https://bitmovin.com/demos/drm
+ * [1] 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);
+ // user_pref("browser.eme.ui.enabled", false);
+/* 5509: disable IPv6 if using a VPN
+ * This is an application level fallback. Disabling IPv6 is best done at an OS/network
+ * level, and/or configured properly in system wide VPN setups.
+ * [NOTE] PHP defaults to IPv6 with "localhost". Use "php -S 127.0.0.1:PORT"
+ * [SETUP-WEB] PR_CONNECT_RESET_ERROR
+ * [TEST] https://ipleak.org/
+ * [1] https://www.internetsociety.org/tag/ipv6-security/ (Myths 2,4,5,6) ***/
+ // user_pref("network.dns.disableIPv6", true);
+/* 5510: control when to send a cross-origin referer
+ * 0=always (default), 1=only if base domains match, 2=only if hosts match
+ * [NOTE] Will cause breakage: older modems/routers and some sites e.g banks, vimeo, icloud, instagram ***/
+ // user_pref("network.http.referer.XOriginPolicy", 2);
+/* 5511: set DoH bootstrap address [FF89+]
+ * Firefox uses the system DNS to initially resolve the IP address of your DoH server.
+ * When set to a valid, working value that matches your "network.trr.uri" (0712) Firefox
+ * won't use the system DNS. If the IP doesn't match then DoH won't work ***/
+ // user_pref("network.trr.bootstrapAddr", "10.0.0.1"); // [HIDDEN PREF]
/*** [SECTION 6000]: DON'T TOUCH ***/
user_pref("_user.js.parrot", "6000 syntax error: the parrot's 'istory!");
@@ -1010,10 +1005,9 @@ user_pref("security.dialog_enable_delay", 1000); // [DEFAULT: 1000]
* [WARNING] Replaced with network partitioning (FF85+) and TCP (2701), and enabling FPI
* disables those. FPI is no longer maintained except at Tor Project for Tor Browser's config ***/
user_pref("privacy.firstparty.isolate", false); // [DEFAULT: false]
-/* 6009: enforce SmartBlock shims [FF81+]
- * In FF96+ these are listed in about:compat
+/* 6009: enforce SmartBlock shims (about:compat) [FF81+]
* [1] https://blog.mozilla.org/security/2021/03/23/introducing-smartblock/ ***/
-user_pref("extensions.webcompat.enable_shims", true); // [DEFAULT: true]
+user_pref("extensions.webcompat.enable_shims", true); // [HIDDEN PREF] [DEFAULT: true]
/* 6010: enforce no TLS 1.0/1.1 downgrades
* [TEST] https://tls-v1-1.badssl.com:1010/ ***/
user_pref("security.tls.version.enable-deprecated", false); // [DEFAULT: false]
@@ -1021,32 +1015,32 @@ user_pref("security.tls.version.enable-deprecated", false); // [DEFAULT: false]
* Web Compatibility Reporter adds a "Report Site Issue" button to send data to Mozilla
* [WHY] To prevent wasting Mozilla's time with a custom setup ***/
user_pref("extensions.webcompat-reporter.enabled", false); // [DEFAULT: false]
-/* 6050: prefsCleaner: reset previously active items removed from arkenfox FF102+ ***/
- // user_pref("beacon.enabled", "");
- // user_pref("browser.startup.blankWindow", "");
- // user_pref("browser.newtab.preload", "");
- // user_pref("browser.newtabpage.activity-stream.feeds.discoverystreamfeed", "");
- // user_pref("browser.newtabpage.activity-stream.feeds.snippets", "");
- // user_pref("browser.region.network.url", "");
- // user_pref("browser.region.update.enabled", "");
- // user_pref("browser.ssl_override_behavior", "");
- // user_pref("devtools.chrome.enabled", "");
- // user_pref("dom.disable_beforeunload", "");
- // user_pref("dom.disable_open_during_load", "");
- // user_pref("extensions.formautofill.available", "");
- // user_pref("extensions.formautofill.addresses.supported", "");
- // user_pref("extensions.formautofill.creditCards.available", "");
- // user_pref("extensions.formautofill.creditCards.supported", "");
+/* 6012: enforce Quarantined Domains [FF115+]
+ * [WHY] https://support.mozilla.org/kb/quarantined-domains */
+user_pref("extensions.quarantinedDomains.enabled", true); // [DEFAULT: true]
+/* 6050: prefsCleaner: reset previously active items removed from arkenfox FF128+ ***/
+ // user_pref("privacy.clearOnShutdown.cache", "");
+ // user_pref("privacy.clearOnShutdown.cookies", "");
+ // user_pref("privacy.clearOnShutdown.downloads", "");
+ // user_pref("privacy.clearOnShutdown.formdata", "");
+ // user_pref("privacy.clearOnShutdown.history", "");
+ // user_pref("privacy.clearOnShutdown.offlineApps", "");
+ // user_pref("privacy.clearOnShutdown.sessions", "");
+ // user_pref("privacy.cpd.cache", "");
+ // user_pref("privacy.cpd.cookies", "");
+ // user_pref("privacy.cpd.formdata", "");
+ // user_pref("privacy.cpd.history", "");
+ // user_pref("privacy.cpd.offlineApps", "");
+ // user_pref("privacy.cpd.sessions", "");
/*** [SECTION 7000]: DON'T BOTHER ***/
user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies!");
/* 7001: disable APIs
- * Location-Aware Browsing, Full Screen, offline cache (appCache)
- * [WHY] The API state is easily fingerprintable. Geo is behind a prompt (7002).
- * appCache storage capability was removed in FF90. Full screen requires user interaction ***/
+ * Location-Aware Browsing, Full Screen
+ * [WHY] The API state is easily fingerprintable.
+ * Geo is behind a prompt (7002). Full screen requires user interaction ***/
// user_pref("geo.enabled", false);
// user_pref("full-screen-api.enabled", false);
- // user_pref("browser.cache.offline.enable", false);
/* 7002: set default permissions
* Location, Camera, Microphone, Notifications [FF58+] Virtual Reality [FF73+]
* 0=always ask (default), 1=allow, 2=block
@@ -1062,8 +1056,8 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
/* 7003: disable non-modern cipher suites [1]
* [WHY] Passive fingerprinting. Minimal/non-existent threat of downgrade attacks
* [1] https://browserleaks.com/ssl ***/
- // user_pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", false); // [DEFAULT: false FF109+]
- // user_pref("security.ssl3.ecdhe_ecdsa_aes_256_sha", false); // [DEFAULT: false FF109+]
+ // user_pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", false);
+ // user_pref("security.ssl3.ecdhe_ecdsa_aes_256_sha", false);
// user_pref("security.ssl3.ecdhe_rsa_aes_128_sha", false);
// user_pref("security.ssl3.ecdhe_rsa_aes_256_sha", false);
// user_pref("security.ssl3.rsa_aes_128_gcm_sha256", false); // no PFS
@@ -1078,12 +1072,8 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
* [WHY] Passive fingerprinting and perf costs. These are session-only
* and isolated with network partitioning (FF85+) and/or containers ***/
// user_pref("security.ssl.disable_session_identifiers", true);
-/* 7006: onions
- * [WHY] Firefox doesn't support hidden services. Use Tor Browser ***/
- // user_pref("dom.securecontext.allowlist_onions", true); // [FF97+] 1382359/1744006
- // user_pref("network.http.referer.hideOnionSource", true); // 1305144
/* 7007: referers
- * [WHY] Only cross-origin referers (1600s) need control ***/
+ * [WHY] Only cross-origin referers (1602, 5510) matter ***/
// user_pref("network.http.sendRefererHeader", 2);
// user_pref("network.http.referer.trimmingPolicy", 0);
/* 7008: set the default Referrer Policy [FF59+]
@@ -1115,12 +1105,16 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
* [WHY] DNT is enforced with Tracking Protection which is used in ETP Strict (2701) ***/
// user_pref("privacy.donottrackheader.enabled", true);
/* 7016: customize ETP settings
+ * [NOTE] FPP (fingerprintingProtection) is ignored when RFP (4501) is enabled
* [WHY] Arkenfox only supports strict (2701) which sets these at runtime ***/
- // user_pref("network.cookie.cookieBehavior", 5); // [DEFAULT: 5 FF103+]
+ // user_pref("network.cookie.cookieBehavior", 5); // [DEFAULT: 5]
+ // user_pref("network.cookie.cookieBehavior.optInPartitioning", true); // [ETP FF132+]
// user_pref("network.http.referer.disallowCrossSiteRelaxingDefault", true);
// user_pref("network.http.referer.disallowCrossSiteRelaxingDefault.top_navigation", true); // [FF100+]
- // user_pref("privacy.partition.network_state.ocsp_cache", true);
- // user_pref("privacy.query_stripping.enabled", true); // [FF101+] [ETP FF102+]
+ // user_pref("privacy.bounceTrackingProtection.mode", 1); // [FF131+] [ETP FF133+]
+ // user_pref("privacy.fingerprintingProtection", true); // [FF114+] [ETP FF119+]
+ // user_pref("privacy.partition.network_state.ocsp_cache", true); // [DEFAULT: true]
+ // user_pref("privacy.query_stripping.enabled", true); // [FF101+]
// user_pref("privacy.trackingprotection.enabled", true);
// user_pref("privacy.trackingprotection.socialtracking.enabled", true);
// user_pref("privacy.trackingprotection.cryptomining.enabled", true); // [DEFAULT: true]
@@ -1128,13 +1122,12 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
/* 7017: disable service workers
* [WHY] Already isolated with TCP (2701) behind a pref (2710) ***/
// user_pref("dom.serviceWorkers.enabled", false);
-/* 7018: disable Web Notifications
+/* 7018: disable Web Notifications [FF22+]
* [WHY] Web Notifications are behind a prompt (7002)
* [1] https://blog.mozilla.org/en/products/firefox/block-notification-requests/ ***/
- // user_pref("dom.webnotifications.enabled", false); // [FF22+]
- // user_pref("dom.webnotifications.serviceworker.enabled", false); // [FF44+]
+ // user_pref("dom.webnotifications.enabled", false);
/* 7019: disable Push Notifications [FF44+]
- * [WHY] Push requires subscription
+ * [WHY] Website "push" requires subscription, and the API is required for CRLite (1224)
* [NOTE] To remove all subscriptions, reset "dom.push.userAgentID"
* [1] https://support.mozilla.org/kb/push-notifications-firefox ***/
// user_pref("dom.push.enabled", false);
@@ -1145,6 +1138,10 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
* [1] https://groups.google.com/g/discuss-webrtc/c/6stQXi72BEU/m/2FwZd24UAQAJ
* [2] https://datatracker.ietf.org/doc/html/draft-ietf-mmusic-mdns-ice-candidates#section-3.1.1 ***/
// user_pref("media.peerconnection.enabled", false);
+/* 7021: enable GPC (Global Privacy Control) in non-PB windows
+ * [WHY] Passive and active fingerprinting. Mostly redundant with Tracking Protection
+ * in ETP Strict (2701) and sanitizing on close (2800s) ***/
+ // user_pref("privacy.globalprivacycontrol.enabled", true);
/*** [SECTION 8000]: DON'T BOTHER: FINGERPRINTING
[WHY] They are insufficient to help anti-fingerprinting and do more harm than good
@@ -1175,35 +1172,77 @@ user_pref("_user.js.parrot", "8000 syntax error: the parrot's crossed the Jordan
// user_pref("ui.use_standins_for_native_colors", "");
// user_pref("webgl.enable-debug-renderer-info", "");
+/*** [SECTION 8500]: TELEMETRY
+ Arkenfox does not consider Firefox telemetry to be a privacy or security concern - comments below.
+ But since most arkenfox users prefer it disabled, we'll do that rather than cause overrides.
+
+ Opt-out
+ - Telemetry is essential: a browser engine is a _very_ large complex beast costing billions to maintain
+ - Opt-in telemetry _does not_ work and results in data that is unrepresentative and may be misleading
+ Choice
+ - Every new profile on first use provides data collection/use policy and the abillty to opt-out
+ - It can be disabled at any time (Settings>Privacy & Security>Data Collection and Use)
+ Data
+ - no PII (Personally Identifiable Information)
+ - can be viewed in about:telemetry
+ - uses Prio [1][2][3], Glean [4], Oblivious HTTP [5][6]
+
+ [1] https://crypto.stanford.edu/prio/
+ [2] https://hacks.mozilla.org/2018/10/testing-privacy-preserving-telemetry-with-prio/
+ [3] https://blog.mozilla.org/security/2019/06/06/next-steps-in-privacy-preserving-telemetry-with-prio/
+ [4] https://firefox-source-docs.mozilla.org/toolkit/components/glean/index.html
+ [5] https://firefox-source-docs.mozilla.org/toolkit/components/glean/user/ohttp.html
+ [6] https://blog.mozilla.org/en/tag/oblivious-http/
+***/
+user_pref("_user.js.parrot", "8500 syntax error: the parrot's off the twig!");
+/* 8500: disable new data submission [FF41+]
+ * If disabled, no policy is shown or upload takes place, ever
+ * [1] https://bugzilla.mozilla.org/1195552 ***/
+user_pref("datareporting.policy.dataSubmissionEnabled", false);
+/* 8501: disable Health Reports
+ * [SETTING] Privacy & Security>Firefox Data Collection and Use>Send technical... data ***/
+user_pref("datareporting.healthreport.uploadEnabled", false);
+/* 0802: disable telemetry
+ * The "unified" pref affects the behavior of the "enabled" pref
+ * - If "unified" is false then "enabled" controls the telemetry module
+ * - If "unified" is true then "enabled" only controls whether to record extended data
+ * [NOTE] "toolkit.telemetry.enabled" is now LOCKED to reflect prerelease (true) or release builds (false) [2]
+ * [1] https://firefox-source-docs.mozilla.org/toolkit/components/telemetry/telemetry/internals/preferences.html
+ * [2] https://medium.com/georg-fritzsche/data-preference-changes-in-firefox-58-2d5df9c428b5 ***/
+user_pref("toolkit.telemetry.unified", false);
+user_pref("toolkit.telemetry.enabled", false); // see [NOTE]
+user_pref("toolkit.telemetry.server", "data:,");
+user_pref("toolkit.telemetry.archive.enabled", false);
+user_pref("toolkit.telemetry.newProfilePing.enabled", false); // [FF55+]
+user_pref("toolkit.telemetry.shutdownPingSender.enabled", false); // [FF55+]
+user_pref("toolkit.telemetry.updatePing.enabled", false); // [FF56+]
+user_pref("toolkit.telemetry.bhrPing.enabled", false); // [FF57+] Background Hang Reporter
+user_pref("toolkit.telemetry.firstShutdownPing.enabled", false); // [FF57+]
+/* 8503: disable Telemetry Coverage
+ * [1] 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", "");
+
/*** [SECTION 9000]: NON-PROJECT RELATED ***/
user_pref("_user.js.parrot", "9000 syntax error: the parrot's cashed in 'is chips!");
/* 9001: disable welcome notices ***/
-user_pref("browser.startup.homepage_override.mstone", "ignore");
+user_pref("browser.startup.homepage_override.mstone", "ignore"); // [HIDDEN PREF]
/* 9002: disable General>Browsing>Recommend extensions/features as you browse [FF67+] ***/
user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons", false);
user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features", false);
-/* 9003: disable What's New toolbar icon [FF69+] ***/
-user_pref("browser.messaging-system.whatsNewPanel.enabled", false);
/* 9004: disable search terms [FF110+]
* [SETTING] Search>Search Bar>Use the address bar for search and navigation>Show search terms instead of URL... ***/
user_pref("browser.urlbar.showSearchTerms.enabled", false);
-/*** [SECTION 9999]: DEPRECATED / REMOVED / LEGACY / RENAMED
- Documentation denoted as [-]. Items deprecated prior to FF91 have been archived at [1]
- [1] https://github.com/arkenfox/user.js/issues/123
-***/
+/*** [SECTION 9999]: DEPRECATED / RENAMED ***/
user_pref("_user.js.parrot", "9999 syntax error: the parrot's shuffled off 'is mortal coil!");
-/* ESR102.x still uses all the following prefs
-// [NOTE] replace the * with a slash in the line above to re-enable them
-// FF103
- // 2801: delete cookies and site data on exit - replaced by sanitizeOnShutdown* (2810)
- // 0=keep until they expire (default), 2=keep until you close Firefox
- // [SETTING] Privacy & Security>Cookies and Site Data>Delete cookies and site data when Firefox is closed
- // [-] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1681493,1681495,1681498,1759665,1764761
-user_pref("network.cookie.lifetimePolicy", 2);
-// 6012: disable SHA-1 certificates
- // [-] https://bugzilla.mozilla.org/1766687
- // user_pref("security.pki.sha1_enforcement_level", 1); // [DEFAULT: 1]
+/* ESR128.x still uses all the following prefs
+// [NOTE] replace the * with a slash in the line above to re-enable active ones
+// FF132
+/* 2617: remove webchannel whitelist
+ // [-] https://bugzilla.mozilla.org/1275612
+ // user_pref("webchannel.allowObject.urlWhitelist", "");
// ***/
/* END: internal custom pref to test for syntax errors ***/
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