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|
/******************************************************************************
* user.js *
* Adapted from... *
* https://github.com/pyllyukko/user.js *
* https://github.com/The-OP/Fox/tree/master/prefs *
******************************************************************************/
/*****************************************************************************
* Avoid hardware based fingerprintings *
* Canvas/Font's/Plugins *
******************************************************************************/
// https://wiki.mozilla.org/Platform/GFX/HardwareAcceleration
// https://www.macromedia.com/support/documentation/en/flashplayer/help/help01.html
// https://github.com/dillbyrne/random-agent-spoofer/issues/74
pref("gfx.direct2d.disabled", true);
pref("layers.acceleration.disabled", true);
pref("gfx.downloadable_fonts.fallback_delay", -1);
pref("intl.charset.default", "windows-1252");
pref("intl.locale.matchOS", false);
// Set locale to en-US (if you are using localized version of FF)
pref("intl.accept_languages", "en-US, en");
pref("javascript.use_us_english_locale", true);
pref("noscript.forbidFonts", true);
// Favicons cause fingerprinting by downloading your entire bookmarks toolbar on start-up.
pref("browser.chrome.favicons", false);
pref("browser.chrome.site_icons", false);
pref("browser.shell.shortcutFavicons", false);
/******************************************************************************
* HTML5 / APIs / DOM *
* *
******************************************************************************/
// disable Location-Aware Browsing
// http://www.mozilla.org/en-US/firefox/geolocation/
pref("geo.enabled", false);
// Disable dom.mozTCPSocket.enabled (raw TCP socket support)
// https://trac.torproject.org/projects/tor/ticket/18863
// https://www.mozilla.org/en-US/security/advisories/mfsa2015-97/
// https://developer.mozilla.org/docs/Mozilla/B2G_OS/API/TCPSocket
pref("dom.mozTCPSocket.enabled", false);
// Disable DOM Shared Workers
// See https://bugs.torproject.org/15562
pref("dom.workers.sharedWorkers.enabled", false);
// https://developer.mozilla.org/en-US/docs/Web/API/Worker
// https://developer.mozilla.org/en-US/docs/Web/API/ServiceWorker_API
// https://wiki.mozilla.org/Firefox/Push_Notifications#Service_Workers
pref("dom.serviceWorkers.enabled", false);
// Disable WebSockets
// https://www.infoq.com/news/2012/03/websockets-security
// http://mdn.beonex.com/en/WebSockets.html
pref("network.websocket.max-connections", 0);
// Disable DOM Push API
// https://developer.mozilla.org/en-US/docs/Web/API/Push_API
// https://wiki.mozilla.org/Security/Reviews/Push_API
// https://wiki.mozilla.org/Privacy/Reviews/Push_API
// https://bugzilla.mozilla.org/show_bug.cgi?id=1038811
// https://bugzilla.mozilla.org/show_bug.cgi?id=1153499
pref("dom.push.enabled", false);
pref("dom.push.serverURL", "");
pref("dom.push.userAgentID", "");
// https://hg.mozilla.org/releases/mozilla-beta/file/e549349b8d66/modules/libpref/init/all.js#l4237
pref("dom.push.connection.enabled", false);
pref("dom.push.adaptive.enabled", false);
pref("dom.push.udp.wakeupEnabled", false);
// https://hg.mozilla.org/releases/mozilla-beta/file/00bcc10b3bdc/modules/libpref/init/all.js#l4445
// https://hg.mozilla.org/releases/mozilla-beta/file/00bcc10b3bdc/dom/push/PushRecord.jsm#l59
pref("dom.push.maxQuotaPerSubscription", 0);
// https://wiki.mozilla.org/Security/Reviews/SimplePush
pref("services.push.enabled", false);
pref("services.push.serverURL", "");
// Make sure DOM "beforeunload" is off, caches user pages in bfcache and tries to stop user from closing page.
// https://developer.mozilla.org/en-US/docs/Web/Events/beforeunload
pref("dom.disable_beforeunload", true);
pref("dom.require_user_interaction_for_beforeunload", false);
// Disable Kinto Cloud
// Note: Pref may change name in future release
// https://bugzilla.mozilla.org/show_bug.cgi?id=1266235#c2
// https://hg.mozilla.org/releases/mozilla-release/file/c1de04f39fa956cfce83f6065b0e709369215ed5/services/common/kinto-updater.js
pref("services.kinto.base", "data:application/json,{}");
pref("services.kinto.changes.path", "");
// Disable MDNS (Supposedly only for Android but is in Desktop version also)
// https://hg.mozilla.org/releases/mozilla-beta/file/00bcc10b3bdc/dom/presentation/provider/MulticastDNSDeviceProvider.cpp#l18
pref("dom.presentation.discovery.enabled", false);
// https://bugzilla.mozilla.org/show_bug.cgi?id=1278205
pref("dom.presentation.controller.enabled", false);
pref("dom.presentation.receiver.enabled", false);
pref("dom.presentation.tcp_server.debug", false);
pref("dom.presentation.discoverable", false);
pref("dom.presentation.discovery.legacy.enabled", false);
// http://kb.mozillazine.org/Dom.storage.enabled
// http://dev.w3.org/html5/webstorage/#dom-localstorage
// you can also see this with Panopticlick's "DOM localStorage"
pref("dom.storage.enabled", false);
// https://developer.mozilla.org/en-US/docs/Web/API/Storage_API
// https://storage.spec.whatwg.org/
pref("dom.storageManager.enabled", false);
// Whether JS can get information about the network/browser connection
// Network Information API provides general information about the system's connection type (WiFi, cellular, etc.)
// https://developer.mozilla.org/en-US/docs/Web/API/Network_Information_API
// https://wicg.github.io/netinfo/#privacy-considerations
// https://bugzilla.mozilla.org/show_bug.cgi?id=960426
pref("dom.netinfo.enabled", false);
// fingerprinting due to differing OS implementations
pref("dom.network.enabled", false);
// Disable Web Audio API
// https://bugzil.la/1288359
pref("dom.webaudio.enabled", false);
// Audio Recording API (Currently only used by WebRTC)
// https://hg.mozilla.org/releases/mozilla-beta/file/00bcc10b3bdc/dom/media/MediaManager.cpp#l1942
pref("media.getusermedia.noise_enabled", false);
pref("media.getusermedia.audiocapture.enabled", false);
// Audio_data is deprecated in future releases, but still present
// in FF24. This is a dangerous combination (spotted by iSec)
pref("media.audio_data.enabled", false);
// Don't autoplay WebM and other embedded media files
// https://support.mozilla.org/en-US/questions/1073167
pref("media.autoplay.enabled", false);
pref("noscript.forbidMedia", true);
// Disable Device Change API (FF 52+)
// https://developer.mozilla.org/en-US/docs/Web/Events/devicechange
// https://bugzilla.mozilla.org/show_bug.cgi?id=1152383
// https://hg.mozilla.org/releases/mozilla-release/file/a67a1682be8f0327435aaa2f417154330eff0017/dom/webidl/MediaDevices.webidl#l15
pref("media.ondevicechange.enabled", false);
// https://hg.mozilla.org/releases/mozilla-release/rev/5022a33fd3e9
pref("media.ondevicechange.fakeDeviceChangeEvent.enabled", false);
// Don't reveal your internal IP
// Check the settings with: http://net.ipcalf.com/
// https://wiki.mozilla.org/Media/WebRTC/Privacy
pref("media.peerconnection.ice.default_address_only", true); // Firefox < 51
pref("media.peerconnection.ice.no_host", true); // Firefox >= 51
pref("media.peerconnection.ice.relay_only", true);
// Disable WebRTC entirely
pref("media.peerconnection.enabled", false);
// getUserMedia
// https://wiki.mozilla.org/Media/getUserMedia
pref("media.getusermedia.screensharing.allowed_domains", "");
pref("media.getusermedia.screensharing.enabled", false);
// https://developer.mozilla.org/en-US/docs/Web/API/Navigator
pref("media.navigator.enabled", false);
// https://developer.mozilla.org/en-US/docs/Web/API/BatteryManager
pref("dom.battery.enabled", false);
// https://wiki.mozilla.org/WebAPI/Security/WebTelephony
pref("dom.telephony.enabled", false);
// https://developer.mozilla.org/en-US/docs/Web/API/navigator.sendBeacon
pref("beacon.enabled", false);
// https://developer.mozilla.org/en-US/docs/Mozilla/Preferences/Preference_reference/dom.event.clipboardevents.enabled
pref("dom.event.clipboardevents.enabled", false);
// https://wiki.mozilla.org/Security/Reviews/Firefox/NavigationTimingAPI
pref("dom.enable_performance", false);
// https://wiki.mozilla.org/B2G/QA/WebAPI_Test_Plan/Vibration#API
pref("dom.vibrator.enabled", false);
// Speech recognition
// https://dvcs.w3.org/hg/speech-api/raw-file/tip/speechapi.html
// https://wiki.mozilla.org/HTML5_Speech_API
pref("media.webspeech.recognition.enable", false);
pref("media.webspeech.synth.enabled", false);
// Disable getUserMedia screen sharing
// https://mozilla.github.io/webrtc-landing/gum_test.html
pref("media.getusermedia.screensharing.enabled", false);
// Disable sensor API
// https://wiki.mozilla.org/Sensor_API
pref("device.sensors.enabled", false);
// Disable MMS
pref("dom.mms.retrieval_mode", "never");
// http://kb.mozillazine.org/Browser.send_pings
pref("browser.send_pings", false);
// this shouldn't have any effect, since we block pings altogether, but we'll set it anyway.
// http://kb.mozillazine.org/Browser.send_pings.require_same_host
pref("browser.send_pings.require_same_host", true);
// https://developer.mozilla.org/en-US/docs/IndexedDB
// https://wiki.mozilla.org/Security/Reviews/Firefox4/IndexedDB_Security_Review
// TODO: find out why html5test still reports this as available
// Note: Disabled, Can be enable if it breaks plugins/sites which require it. Privacy Risk.
// see: http://forums.mozillazine.org/viewtopic.php?p=13842047#p13842047
pref("dom.indexedDB.enabled", false);
// TODO: "Access Your Location" "Maintain Offline Storage" "Show Notifications"
// Disable gamepad input
// http://www.w3.org/TR/gamepad/
pref("dom.gamepad.enabled", false);
pref("dom.gamepad.test.enabled", false);
// Disable virtual reality devices
// https://developer.mozilla.org/en-US/Firefox/Releases/36#Interfaces.2FAPIs.2FDOM
pref("dom.vr.enabled", false);
pref("dom.vr.cardboard.enabled", false);
pref("dom.vr.oculus.enabled", false);
pref("dom.vr.oculus050.enabled", false);
pref("dom.vr.poseprediction.enabled", false);
pref("dom.vr.openvr.enabled", false);
// https://hg.mozilla.org/releases/mozilla-release/file/970d0cf1c5d9/modules/libpref/init/all.js#l4778
pref("dom.vr.add-test-devices", 0);
pref("dom.vr.osvr.enabled", false);
// disable notifications
pref("dom.webnotifications.enabled", false);
// HTML5 privacy https://bugzilla.mozilla.org/show_bug.cgi?id=500328
pref("browser.history.allowPopState", false);
pref("browser.history.allowPushState", false);
pref("browser.history.allowReplaceState", false);
// Idle Observation
pref("dom.idle-observers-api.enabled", false);
// Prevent Timing Attacks
// https://network23.org/inputisevil/2015/09/06/how-html5-apis-can-fingerprint-users/
pref("dom.performance.enable_user_timing_logging", false);
pref("dom.enable_resource_timing", false); // Bug 13024
pref("dom.enable_user_timing", false); // Bug 16336
pref("dom.event.highrestimestamp.enabled", true); // Bug 17046: Don't leak system uptime in Events
// disable webGL
// http://www.contextis.com/resources/blog/webgl-new-dimension-browser-exploitation/
pref("webgl.disabled", true);
// https://bugzilla.mozilla.org/show_bug.cgi?id=1171228
// https://developer.mozilla.org/en-US/docs/Web/API/WEBGL_debug_renderer_info
pref("webgl.enable-debug-renderer-info", false);
pref("webgl.disable-extensions", false);
pref("webgl.min_capability_mode", true);
pref("webgl.disable-wgl", true);
pref("webgl.enable-webgl2", false);
// https://trac.torproject.org/projects/tor/ticket/18603
pref("webgl.disable-fail-if-major-performance-caveat", true);
// somewhat related...
pref("pdfjs.enableWebGL", false);
// Disable File and Directory Entries API (Imported from Edge/Chromium)
// https://developer.mozilla.org/en-US/Firefox/Releases/50#Files_and_directories
// https://developer.mozilla.org/en-US/docs/Web/API/File_and_Directory_Entries_API
// https://developer.mozilla.org/en-US/docs/Web/API/File_and_Directory_Entries_API/Introduction
// https://developer.mozilla.org/en-US/docs/Web/API/File_and_Directory_Entries_API/Firefox_support
// https://bugzilla.mozilla.org/show_bug.cgi?id=1265767
pref("dom.webkitBlink.filesystem.enabled", false);
// https://developer.mozilla.org/en-US/docs/Web/API/HTMLInputElement/webkitdirectory
// https://bugzilla.mozilla.org/show_bug.cgi?id=1258489
// https://hg.mozilla.org/releases/mozilla-release/rev/133af19777be
pref("dom.webkitBlink.dirPicker.enabled", false);
// Directory Upload API, webkitdirectory
// https://bugzilla.mozilla.org/show_bug.cgi?id=1188880
// https://bugzilla.mozilla.org/show_bug.cgi?id=907707
// https://wicg.github.io/directory-upload/proposal.html
pref("dom.input.dirpicker", false);
// Disable FlyWeb
// http://www.ghacks.net/2016/07/26/firefox-flyweb/
// https://www.reddit.com/r/firefox/comments/4uwd1n/flyweb_we_dont_need_no_stinking_iot_apps/
// https://hg.mozilla.org/releases/mozilla-release/rev/576019c74103
// https://hg.mozilla.org/releases/mozilla-release/file/8dc18bf5abac/browser/extensions/flyweb/bootstrap.js#l36
pref("dom.flyweb.enabled", false);
// Disable Pointer Lock API.
// https://developer.mozilla.org/en-US/docs/Web/API/Pointer_Lock_API
// https://bugzilla.mozilla.org/show_bug.cgi?id=1273351
pref("full-screen-api.pointer-lock.enabled", false);
pref("pointer-lock-api.prefixed.enabled", false);
/******************************************************************************
* Misc *
* *
******************************************************************************/
// Disable website autorefresh, user can still proceed with warning
pref("accessibility.blockautorefresh", true);
pref("browser.meta_refresh_when_inactive.disabled", true);
pref("noscript.forbidMetaRefresh", true); // NoScript ignores this preference?
// Disable face detection by default
pref("camera.control.face_detection.enabled", false);
pref("camera.control.autofocus_moving_callback.enabled", false);
// Default search engine
//pref("browser.search.defaultenginename", "DuckDuckGo");
// http://kb.mozillazine.org/Clipboard.autocopy
//pref("clipboard.autocopy", false);
// Display an error message indicating the entered information is not a valid
// URL instead of asking from google.
// http://kb.mozillazine.org/Keyword.enabled#Caveats
pref("keyword.enabled", false);
// Don't trim HTTP off of URLs in the address bar.
// https://bugzilla.mozilla.org/show_bug.cgi?id=665580
pref("browser.urlbar.trimURLs", false);
// Don't try to guess where i'm trying to go!!! e.g.: "http://foo" -> "http://(prefix)foo(suffix)"
// http://www-archive.mozilla.org/docs/end-user/domain-guessing.html
pref("browser.fixup.alternate.enabled", false);
// Set TOR as default proxy
pref("network.proxy.socks", "127.0.0.1");
pref("network.proxy.socks_port", 9050);
// Proxy off by default, user can toggle it on.
pref("network.proxy.type", 0);
// Protect TOR ports
pref("network.security.ports.banned", "9050,9051,9150,9151");
// Make sure proxy-autoconfig is off to prevent MiTM.
// https://bugzilla.mozilla.org/show_bug.cgi?id=1255474
// https://hg.mozilla.org/releases/mozilla-release/rev/5139b0dd7acc
pref("network.proxy.autoconfig_url.include_path", false);
// https://trac.torproject.org/projects/tor/wiki/doc/TorifyHOWTO/WebBrowsers
pref("network.proxy.socks_remote_dns", true);
// For fingerprinting and local service vulns (#10419)
pref("network.proxy.no_proxies_on", "");
// We not want to monitoring the connection state of users
// https://trac.torproject.org/projects/tor/ticket/18945
pref("network.manage-offline-status", false);
// Mixed content stuff
// https://developer.mozilla.org/en-US/docs/Site_Compatibility_for_Firefox_23#Non-SSL_contents_on_SSL_pages_are_blocked_by_default
// https://blog.mozilla.org/tanvi/2013/04/10/mixed-content-blocking-enabled-in-firefox-23/
pref("security.mixed_content.block_active_content", true);
// Mixed Passive Content (a.k.a. Mixed Display Content).
pref("security.mixed_content.block_display_content", true);
// https://secure.wikimedia.org/wikibooks/en/wiki/Grsecurity/Application-specific_Settings#Firefox_.28or_Iceweasel_in_Debian.29
pref("javascript.options.methodjit.chrome", false);
pref("javascript.options.methodjit.content", false);
// CIS Mozilla Firefox 24 ESR v1.0.0 - 3.7 Disable JAR from opening Unsafe File Types
// http://kb.mozillazine.org/Network.jar.open-unsafe-types
pref("network.jar.open-unsafe-types", false);
// https://bugzilla.mozilla.org/show_bug.cgi?id=1173171
pref("network.jar.block-remote-files", true);
// CIS 2.7.4 Disable Scripting of Plugins by JavaScript
pref("security.xpconnect.plugin.unrestricted", false);
// CIS Mozilla Firefox 24 ESR v1.0.0 - 3.8 Set File URI Origin Policy
// http://kb.mozillazine.org/Security.fileuri.strict_origin_policy
pref("security.fileuri.strict_origin_policy", true);
// CIS 2.3.6 Disable Displaying Javascript in History URLs
// http://kb.mozillazine.org/Browser.urlbar.filter.javascript
pref("browser.urlbar.filter.javascript", true);
// http://asmjs.org/
// https://www.mozilla.org/en-US/security/advisories/mfsa2015-29/
// https://www.mozilla.org/en-US/security/advisories/mfsa2015-50/
// https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2015-2712
pref("javascript.options.asmjs", false);
// https://hacks.mozilla.org/2016/03/a-webassembly-milestone/
pref("javascript.options.wasm", false);
pref("javascript.options.wasm_baselinejit", false);
// https://trac.torproject.org/projects/tor/ticket/9387#comment:43
pref("javascript.options.typeinference", false);
pref("javascript.options.baselinejit.content", false);
pref("javascript.options.ion.content", false);
// https://www.torproject.org/projects/torbrowser/design
pref("mathml.disabled", true);
// https://wiki.mozilla.org/SVGOpenTypeFonts
// the iSEC Partners Report recommends to disable this
pref("gfx.font_rendering.opentype_svg.enabled", false);
// Disable SVG
// Note: May only work in TBB due to upstream not implementing?
// https://trac.torproject.org/projects/tor/ticket/18770
// https://bugzilla.mozilla.org/show_bug.cgi?id=1173199#c9
pref("svg.in-content.enabled", false);
// https://bugzil.la/654550
// https://github.com/pyllyukko/user.js/issues/9#issuecomment-100468785
// https://github.com/pyllyukko/user.js/issues/9#issuecomment-148922065
pref("media.video_stats.enabled", false);
// Don't reveal build ID
// Value taken from Tor Browser
// https://bugzil.la/583181
pref("general.buildID.override", "20100101");
// Prevent font fingerprinting
// http://www.browserleaks.com/fonts
// https://github.com/pyllyukko/user.js/issues/120
pref("browser.display.use_document_fonts", 0);
// Prefer sans-serif
pref("font.default.x-western", "sans-serif");
/******************************************************************************
* extensions / plugins *
* *
******************************************************************************/
// Require signatures
pref("xpinstall.signatures.required", true);
// Opt-out of add-on metadata updates
// https://blog.mozilla.org/addons/how-to-opt-out-of-add-on-metadata-updates/
pref("extensions.getAddons.cache.enabled", false);
// Flash plugin state - never activate
pref("plugin.state.flash", 0);
pref("plugins.notifyMissingFlash", false);
// Java plugin state - never activate
pref("plugin.state.java", 0);
// disable Gnome Shell Integration
pref("plugin.state.libgnome-shell-browser-plugin", 0);
// disable the bundled OpenH264 video codec
// http://forums.mozillazine.org/viewtopic.php?p=13845077&sid=28af2622e8bd8497b9113851676846b1#p13845077
pref("media.gmp-provider.enabled", false);
// https://wiki.mozilla.org/Firefox/Click_To_Play
// https://blog.mozilla.org/security/2012/10/11/click-to-play-plugins-blocklist-style/
pref("plugins.click_to_play", true);
// Updates addons automatically
// Disabled due to Fingerprinting, you can update addons manually.
// https://blog.mozilla.org/addons/how-to-turn-off-add-on-updates/
pref("extensions.update.enabled", false);
pref("extensions.update.autoUpdateDefault", false);
// User can still update manually, but we disable background updates.
pref("extensions.update.background.url", "");
// The system add-ons infrastructure that's used to ship Hello and Pocket in Firefox
pref("extensions.systemAddon.update.url", "");
// We can update our themes manually, may fingerprint the user.
pref("lightweightThemes.update.enabled", false);
// Only install extensions to user profile
// https://developer.mozilla.org/en-US/Add-ons/Installing_extensions
// https://mike.kaply.com/2012/02/21/understanding-add-on-scopes/
pref("extensions.enabledScopes", 1);
// http://kb.mozillazine.org/Extensions.blocklist.enabled
pref("extensions.blocklist.enabled", false);
pref("extensions.blocklist.detailsURL", "about:blank");
pref("extensions.blocklist.itemURL", "about:blank");
pref("extensions.blocklist.url", "about:blank");
pref("extensions.getAddons.get.url", "about:blank");
pref("extensions.getAddons.getWithPerformance.url", "about:blank");
pref("extensions.getAddons.recommended.url", "about:blank");
pref("services.settings.server", "");
// If blocklist still downloads, we want it to be signed.
pref("services.blocklist.signing.enforced", true);
// Firefox 49: https://hg.mozilla.org/releases/mozilla-release/rev/c6c57d394549
// https://hg.mozilla.org/releases/mozilla-release/file/c6c57d394549/toolkit/mozapps/extensions/nsBlocklistService.js#l633
pref("services.blocklist.update_enabled", false);
// https://hg.mozilla.org/releases/mozilla-release/file/c6c57d394549/services/common/blocklist-updater.js
pref("services.settings.server", "data:application/json,{\"data\":[]}");
pref("services.blocklist.changes.path", "");
// Disable Freedom Violating DRM Feature
// https://bugzilla.mozilla.org/show_bug.cgi?id=1144903#c8
pref("media.eme.apiVisible", false);
pref("media.eme.enabled", false);
pref("browser.eme.ui.enabled", false);
pref("media.gmp-eme-adobe.enabled", false);
// Google Widevine DRM
// https://blog.mozilla.org/futurereleases/2016/04/08/mozilla-to-test-widevine-cdm-in-firefox-nightly/
// https://wiki.mozilla.org/QA/Widevine_CDM
// https://bugzilla.mozilla.org/show_bug.cgi?id=1288580
pref("media.gmp-widevinecdm.visible", false);
pref("media.gmp-widevinecdm.enabled", false);
pref("media.gmp-widevinecdm.autoupdate", false);
// Fingerprints the user, does not use HTTPS. Remove it.
pref("pfs.datasource.url", "about:blank");
pref("pfs.filehint.url", "about:blank");
/******************************************************************************
* firefox features / components *
* *
******************************************************************************/
// WebIDE
// https://trac.torproject.org/projects/tor/ticket/16222
pref("devtools.webide.enabled", false);
pref("devtools.webide.autoinstallADBHelper", false);
pref("devtools.webide.autoinstallFxdtAdapters", false);
// disable remote debugging
// https://developer.mozilla.org/docs/Tools/Remote_Debugging/Debugging_Firefox_Desktop#Enable_remote_debugging
// https://developer.mozilla.org/en-US/docs/Tools/Tools_Toolbox#Advanced_settings
pref("devtools.debugger.remote-enabled", false);
// "to use developer tools in the context of the browser itself, and not only web content"
pref("devtools.chrome.enabled", false);
// https://developer.mozilla.org/en-US/docs/Tools/Remote_Debugging/Debugging_Firefox_Desktop#Firefox_37_onwards
pref("devtools.debugger.force-local", true);
pref("devtools.devices.url", "about:blank");
pref("devtools.gcli.imgurUploadURL", "about:blank");
pref("devtools.gcli.jquerySrc", "about:blank");
pref("devtools.gcli.lodashSrc", "about:blank");
pref("devtools.gcli.underscoreSrc", "about:blank");
// http://forum.top-hat-sec.com/index.php?topic=4951.5;wap2
pref("devtools.remote.wifi.scan", false);
pref("devtools.remote.wifi.visible", false);
pref("devtools.webide.adaptersAddonURL", "about:blank");
pref("devtools.webide.adbAddonURL", "about:blank");
pref("devtools.webide.addonsURL", "about:blank");
//https://trac.torproject.org/projects/tor/ticket/16222
pref("devtools.webide.enabled", false);
pref("devtools.webide.simulatorAddonsURL", "about:blank");
pref("devtools.webide.templatesURL", "about:blank");
// https://wiki.mozilla.org/Platform/Features/Telemetry
// https://www.mozilla.org/en-US/legal/privacy/firefox.html#telemetry
// https://wiki.mozilla.org/Security/Reviews/Firefox6/ReviewNotes/telemetry
pref("toolkit.telemetry.enabled", false);
// https://gecko.readthedocs.org/en/latest/toolkit/components/telemetry/telemetry/preferences.html
pref("toolkit.telemetry.unified", false);
pref("toolkit.telemetry.server", "about:blank");
pref("toolkit.telemetry.archive.enabled", false);
// https://wiki.mozilla.org/Telemetry/Experiments
pref("experiments.supported", false);
pref("experiments.enabled", false);
pref("experiments.manifest.uri", false);
// https://trac.torproject.org/projects/tor/ticket/13170
pref("network.allow-experiments", false);
// Disable the UITour backend so there is no chance that a remote page
// can use it to confuse Tor Browser users.
pref("browser.uitour.enabled", false);
// https://wiki.mozilla.org/Security/Tracking_protection
// https://support.mozilla.org/en-US/kb/tracking-protection-firefox
pref("privacy.trackingprotection.enabled", true);
// https://support.mozilla.org/en-US/kb/tracking-protection-pbm
pref("privacy.trackingprotection.pbmode.enabled", true);
// Third Party Isolation Enabled Always
// https://github.com/arthuredelstein/tor-browser/commit/b8da7721a9df4af1b595eb046e94280fe8e32d31
pref("privacy.thirdparty.isolate", 2);
// Resist fingerprinting via window.screen and CSS media queries and other techniques
// https://bugzil.la/418986
// https://bugzil.la/1281949
// https://bugzil.la/1281963
pref("privacy.resistFingerprinting", true);
// Disable the built-in PDF viewer (CVE-2015-2743)
// https://web.nvd.nist.gov/view/vuln/detail?vulnId=CVE-2015-2743
pref("pdfjs.disabled", true);
// Disable sending of the health report
// https://support.mozilla.org/en-US/kb/firefox-health-report-understand-your-browser-perf
pref("datareporting.healthreport.uploadEnabled", false);
// disable collection of the data (the healthreport.sqlite* files)
pref("datareporting.healthreport.service.enabled", false);
// https://gecko.readthedocs.org/en/latest/toolkit/components/telemetry/telemetry/preferences.html
pref("datareporting.policy.dataSubmissionEnabled", false);
pref("datareporting.healthreport.about.reportUrl", "about:blank");
pref("datareporting.healthreport.documentServerURI", "about:blank");
pref("datareporting.policy.firstRunTime", 0);
pref("datareporting.policy.firstRunURL", "");
// Disable new tab tile ads & preload
// http://www.thewindowsclub.com/disable-remove-ad-tiles-from-firefox
// http://forums.mozillazine.org/viewtopic.php?p=13876331#p13876331
pref("browser.newtabpage.enhanced", false);
pref("browser.newtab.preload", false);
pref("browser.newtabpage.introShown", true);
// https://wiki.mozilla.org/Tiles/Technical_Documentation#Ping
// https://gecko.readthedocs.org/en/latest/browser/browser/DirectoryLinksProvider.html#browser-newtabpage-directory-ping
pref("browser.newtabpage.directory.ping", "");
// https://gecko.readthedocs.org/en/latest/browser/browser/DirectoryLinksProvider.html#browser-newtabpage-directory-source
pref("browser.newtabpage.directory.source", "data:text/plain,{}");
// disable heartbeat
// https://wiki.mozilla.org/Advocacy/heartbeat
pref("browser.selfsupport.url", "");
// Disable firefox hello
// https://wiki.mozilla.org/Loop
//pref("loop.enabled", false);
// https://groups.google.com/d/topic/mozilla.dev.platform/nyVkCx-_sFw/discussion
pref("loop.logDomains", false);
// Disable Crash Reporter (Massive browser fingerprinting)
pref("dom.ipc.plugins.flash.subprocess.crashreporter.enabled", false);
pref("browser.tabs.crashReporting.sendReport", false);
pref("breakpad.reportURL", "about:blank");
// https://bugzilla.mozilla.org/show_bug.cgi?id=1287178
// https://hg.mozilla.org/releases/mozilla-release/file/a67a1682be8f0327435aaa2f417154330eff0017/browser/modules/ContentCrashHandlers.jsm#l383
pref("browser.crashReports.unsubmittedCheck.enabled", false);
// https://hg.mozilla.org/releases/mozilla-release/rev/c94848691f8a
pref("browser.crashReports.unsubmittedCheck.autoSubmit", false);
// https://hg.mozilla.org/releases/mozilla-release/file/a67a1682be8f0327435aaa2f417154330eff0017/browser/modules/ContentCrashHandlers.jsm#l511
pref("browser.crashReports.unsubmittedCheck.chancesUntilSuppress", 0);
// Disable Slow Startup Notifications
pref("browser.slowStartup.maxSamples", 0);
pref("browser.slowStartup.notificationDisabled", true);
pref("browser.slowStartup.samples", 0);
// CIS 2.1.1 Disable Auto Update / Balrog
pref("app.update.auto", false);
pref("app.update.checkInstallTime", false);
pref("app.update.enabled", false);
pref("app.update.staging.enabled", false);
pref("app.update.url", "about:blank");
pref("media.gmp-manager.certs.1.commonName", "");
pref("media.gmp-manager.certs.2.commonName", "");
// CIS 2.3.4 Block Reported Web Forgeries
// http://kb.mozillazine.org/Browser.safebrowsing.enabled
// http://kb.mozillazine.org/Safe_browsing
// https://support.mozilla.org/en-US/kb/how-does-phishing-and-malware-protection-work
// http://forums.mozillazine.org/viewtopic.php?f=39&t=2711237&p=12896849#p12896849
pref("browser.safebrowsing.enabled", false);
// CIS 2.3.5 Block Reported Attack Sites
// http://kb.mozillazine.org/Browser.safebrowsing.malware.enabled
pref("browser.safebrowsing.malware.enabled", false);
// Disable safe browsing remote lookups for downloaded files.
// This leaks information to google.
// https://www.mozilla.org/en-US/firefox/39.0/releasenotes/
// https://wiki.mozilla.org/Security/Application_Reputation
pref("browser.safebrowsing.downloads.remote.enabled", false);
pref("browser.safebrowsing.appRepURL", "about:blank");
pref("browser.safebrowsing.provider.mozilla.gethashURL", "about:blank");
pref("browser.safebrowsing.provider.mozilla.updateURL", "about:blank");
pref("browser.safebrowsing.downloads.remote.block_dangerous", false);
pref("browser.safebrowsing.downloads.remote.block_dangerous_host", false);
pref("browser.safebrowsing.downloads.remote.block_potentially_unwanted", false);
pref("browser.safebrowsing.downloads.remote.block_uncommon", false);
pref("browser.safebrowsing.downloads.remote.enabled", false);
pref("browser.safebrowsing.downloads.remote.url", "");
pref("browser.safebrowsing.provider.google.gethashURL", "");
pref("browser.safebrowsing.provider.google.updateURL", "");
pref("browser.safebrowsing.provider.google.lists", "");
// https://bugzilla.mozilla.org/show_bug.cgi?id=1025965
pref("browser.safebrowsing.phishing.enabled", false);
pref("browser.safebrowsing.provider.google4.lists", "about:blank");
pref("browser.safebrowsing.provider.google4.updateURL", "about:blank");
pref("browser.safebrowsing.provider.google4.gethashURL", "about:blank");
pref("browser.safebrowsing.provider.google4.reportURL", "about:blank");
pref("browser.safebrowsing.provider.mozilla.lists", "about:blank");
// Disable Microsoft Family Safety MiTM support
// https://bugzilla.mozilla.org/show_bug.cgi?id=1239166
// https://wiki.mozilla.org/SecurityEngineering/Untrusted_Certificates_in_Windows_Child_Mode
// https://hg.mozilla.org/releases/mozilla-release/file/ddb37c386bb2ffa180117b4d30ca3b41a8af233c/security/manager/ssl/nsNSSComponent.cpp#l782
pref("security.family_safety.mode", 0);
// Disable pocket
// https://support.mozilla.org/en-US/kb/save-web-pages-later-pocket-firefox
pref("browser.pocket.enabled", false);
// https://github.com/pyllyukko/user.js/issues/143
pref("extensions.pocket.enabled", false);
pref("extensions.pocket.api", "about:blank");
pref("extensions.pocket.enabled", false);
pref("browser.pocket.api", "about:blank");
pref("browser.pocket.enabledLocales", "about:blank");
pref("browser.pocket.oAuthConsumerKey", "about:blank");
pref("browser.pocket.site", "about:blank");
pref("browser.pocket.useLocaleList", false);
pref("browser.toolbarbuttons.introduced.pocket-button", true);
// Disable Social
pref("social.directories", "");
pref("social.enabled", false);
// remote-install allows any website to activate a provider, with extended UI
pref("social.remote-install.enabled", false);
pref("social.shareDirectory", "");
pref("social.toast-notifications.enabled", false);
pref("social.whitelist", "");
// Disable Snippets
pref("browser.snippets.enabled", false);
pref("browser.snippets.geoUrl", "about:blank");
pref("browser.snippets.statsUrl", "about:blank");
pref("browser.snippets.syncPromo.enabled", false);
pref("browser.snippets.updateUrl", "about:blank");
// Disable WAN IP leaks
pref("captivedetect.canonicalURL", "about:blank");
pref("noscript.ABE.wanIpAsLocal", false); // NoScript ignores this preference?
// Disable Default Protocol Handlers, always warn user instead
pref("network.protocol-handler.external-default", false);
pref("network.protocol-handler.external.mailto", false);
pref("network.protocol-handler.external.news", false);
pref("network.protocol-handler.external.nntp", false);
pref("network.protocol-handler.external.snews", false);
pref("network.protocol-handler.warn-external.mailto", true);
pref("network.protocol-handler.warn-external.news", true);
pref("network.protocol-handler.warn-external.nntp", true);
pref("network.protocol-handler.warn-external.snews", true);
// Disable Sync
pref("services.sync.engine.addons", false);
// Never sync prefs, addons, or tabs with other browsers
pref("services.sync.engine.prefs", false);
pref("services.sync.engine.tabs", false);
pref("services.sync.prefs.sync.addons.ignoreUserEnabledChanges", false);
pref("services.sync.prefs.sync.extensions.update.enabled", false);
pref("services.sync.serverURL", "about:blank");
pref("services.sync.jpake.serverURL", "about:blank");
// Disable Failed Sync Logs since we killed sync.
pref("services.sync.log.appender.file.logOnError", false);
/******************************************************************************
* automatic connections *
* *
******************************************************************************/
// Disable link prefetching
// http://kb.mozillazine.org/Network.prefetch-next
// https://developer.mozilla.org/en-US/docs/Web/HTTP/Link_prefetching_FAQ#Is_there_a_preference_to_disable_link_prefetching.3F
pref("network.prefetch-next", false);
// https://support.mozilla.org/en-US/kb/how-stop-firefox-making-automatic-connections#w_geolocation-for-default-search-engine+
// GeoIP-based search
// https://trac.torproject.org/projects/tor/ticket/16254
pref("browser.search.countryCode", "US");
pref("browser.search.region", "US");
pref("browser.search.geoip.url", "");
pref("browser.search.geoSpecificDefaults.url", "about:blank");
pref("browser.search.geoSpecificDefaults", false);
// http://kb.mozillazine.org/Network.dns.disablePrefetch
// https://developer.mozilla.org/en-US/docs/Web/HTTP/Controlling_DNS_prefetching
pref("network.dns.disablePrefetch", true);
pref("network.dns.disablePrefetchFromHTTPS", true);
// https://bugzilla.mozilla.org/show_bug.cgi?id=1228457
pref("network.dns.blockDotOnion", true);
// https://wiki.mozilla.org/Privacy/Reviews/Necko
pref("network.predictor.enabled", false);
// https://wiki.mozilla.org/Privacy/Reviews/Necko#Principle:_Real_Choice
pref("network.seer.enabled", false);
// http://kb.mozillazine.org/Browser.search.suggest.enabled
pref("browser.search.suggest.enabled", false);
// Disable "Show search suggestions in location bar results"
pref("browser.urlbar.suggest.searches", false);
// Disable SSDP
// https://bugzil.la/1111967
pref("browser.casting.enabled", false);
// https://support.mozilla.org/en-US/kb/how-stop-firefox-making-automatic-connections#w_media-capabilities
// http://andreasgal.com/2014/10/14/openh264-now-in-firefox/
pref("media.gmp-gmpopenh264.enabled", false);
pref("media.peerconnection.video.h264_enabled", false);
// Disable Gecko media plugins: https://wiki.mozilla.org/GeckoMediaPlugins
pref("media.gmp-manager.url", "");
pref("media.gmp-manager.url.override", "data:text/plain");
pref("media.gmp.trial-create.enabled", false);
// https://support.mozilla.org/en-US/kb/how-stop-firefox-making-automatic-connections#w_speculative-pre-connections
// https://bugzil.la/814169
pref("network.http.speculative-parallel-limit", 0);
// https://github.com/arthuredelstein/tor-browser/blob/tbb-esr31.1.1/browser/app/profile/000-tor-browser.js
pref("network.http.pipelining", true);
pref("network.http.pipelining.aggressive", true);
pref("network.http.pipelining.maxrequests", 12);
pref("network.http.pipelining.ssl", true);
pref("network.http.proxy.pipelining", true);
pref("security.ssl.enable_false_start", true);
pref("network.http.keep-alive.timeout", 20);
pref("network.http.connection-retry-timeout", 0);
pref("network.http.max-persistent-connections-per-proxy", 256);
pref("network.http.pipelining.reschedule-timeout", 15000);
pref("network.http.pipelining.read-timeout", 60000);
pref("network.http.pipelining.max-optimistic-requests", 3);
pref("network.http.spdy.enabled", false); // Stores state and may have keepalive issues (both fixable)
pref("network.http.spdy.enabled.v2", false); // Seems redundant, but just in case
pref("network.http.spdy.enabled.v3", false); // Seems redundant, but just in case
// https://support.mozilla.org/en-US/kb/how-stop-firefox-making-automatic-connections#w_mozilla-content
pref("browser.aboutHomeSnippets.updateUrl", "");
// https://support.mozilla.org/en-US/kb/how-stop-firefox-making-automatic-connections#w_auto-update-checking
pref("browser.search.update", false);
//Disable Link to FireFox Marketplace, currently loaded with non-free "apps"
pref("browser.apps.URL", "");
pref("browser.webapps.checkForUpdates", 0);
pref("browser.webapps.updateCheckUrl", "about:blank");
pref("dom.mozApps.signed_apps_installable_from", "");
// https://bugzilla.mozilla.org/show_bug.cgi?id=1223838#c31
pref("network.http.enablePerElementReferrer", false);
// Disable Favicon lookups
// http://kb.mozillazine.org/Browser.chrome.favicons
// pref("browser.chrome.favicons", false);
// pref("browser.chrome.site_icons", false);
/******************************************************************************
* HTTP *
* *
******************************************************************************/
// Disallow NTLMv1
// https://bugzilla.mozilla.org/show_bug.cgi?id=828183
pref("network.negotiate-auth.allow-insecure-ntlm-v1", false);
// it is still allowed through HTTPS. uncomment the following to disable it completely.
//pref("network.negotiate-auth.allow-insecure-ntlm-v1-https", false);
// https://bugzilla.mozilla.org/show_bug.cgi?id=855326
pref("security.csp.experimentalEnabled", true);
// CSP https://developer.mozilla.org/en-US/docs/Web/Security/CSP/Introducing_Content_Security_Policy
pref("security.csp.enable", true);
// Subresource integrity
// https://developer.mozilla.org/en-US/docs/Web/Security/Subresource_Integrity
// https://wiki.mozilla.org/Security/Subresource_Integrity
pref("security.sri.enable", true);
// DNT HTTP header
// http://dnt.mozilla.org/
// https://en.wikipedia.org/wiki/Do_not_track_header
// https://dnt-dashboard.mozilla.org
// https://github.com/pyllyukko/user.js/issues/11
// http://www.howtogeek.com/126705/why-enabling-do-not-track-doesnt-stop-you-from-being-tracked/
//pref("privacy.donottrackheader.enabled", true);
// Disable HTTP Alternative Services header
// https://trac.torproject.org/projects/tor/ticket/16673
pref("network.http.altsvc.enabled", false);
pref("network.http.altsvc.oe", false);
// http://kb.mozillazine.org/Network.http.sendRefererHeader#0
// https://bugzilla.mozilla.org/show_bug.cgi?id=822869
// Send a referer header with the target URI as the source
//pref("network.http.sendRefererHeader", 1);
pref("network.http.referer.spoofSource", true);
// CIS 2.5.1 Accept Only 1st Party Cookies
// http://kb.mozillazine.org/Network.cookie.cookieBehavior#1
// This breaks a number of payment gateways so you may need to comment it out.
pref("network.cookie.cookieBehavior", 1);
// Make sure that third-party cookies (if enabled) never persist beyond the session.
// https://feeding.cloud.geek.nz/posts/tweaking-cookies-for-privacy-in-firefox/
// http://kb.mozillazine.org/Network.cookie.thirdparty.sessionOnly
// https://developer.mozilla.org/en-US/docs/Cookies_Preferences_in_Mozilla#network.cookie.thirdparty.sessionOnly
pref("network.cookie.thirdparty.sessionOnly", true);
// user-agent
//pref("general.useragent.override", "Mozilla/5.0 (Windows NT 6.1; rv:31.0) Gecko/20100101 Firefox/31.0");
/******************************************************************************
* Caching *
* *
******************************************************************************/
// Prevents the Permissions manager from writing to disk (regardless of whether we are in PBM)
// https://bugzilla.mozilla.org/show_bug.cgi?id=967812#c9
pref("permissions.memory_only", true);
// Ensures the intermediate certificate store is memory only.
// Note: Conflicts with old HTTP Basic Authentication
// https://bugzilla.mozilla.org/show_bug.cgi?id=1216882#c0
pref("security.nocertdb", true);
// http://kb.mozillazine.org/Browser.sessionstore.postdata
// NOTE: relates to CIS 2.5.7
pref("browser.sessionstore.postdata", 0);
// http://kb.mozillazine.org/Browser.sessionstore.enabled
pref("browser.sessionstore.enabled", false);
// http://kb.mozillazine.org/Browser.cache.offline.enable
pref("browser.cache.offline.enable", false);
// Always use private browsing
// https://support.mozilla.org/en-US/kb/Private-Browsing
// https://wiki.mozilla.org/PrivateBrowsing
// pref("browser.privatebrowsing.autostart", true);
// Clear history when Firefox closes
// https://support.mozilla.org/en-US/kb/Clear%20Recent%20History#w_how-do-i-make-firefox-clear-my-history-automatically
pref("privacy.sanitize.sanitizeOnShutdown", true);
pref("privacy.clearOnShutdown.cache", true);
pref("privacy.clearOnShutdown.cookies", true);
pref("privacy.clearOnShutdown.downloads", true);
pref("privacy.clearOnShutdown.formdata", true);
pref("privacy.clearOnShutdown.history", true);
pref("privacy.clearOnShutdown.offlineApps", true);
pref("privacy.clearOnShutdown.passwords", true);
pref("privacy.clearOnShutdown.sessions", true);
pref("privacy.clearOnShutdown.siteSettings", true);
// Firefox will store small amounts (less than 50 MB) of data without asking for permission, unless this is set to false
// https://support.mozilla.org/en-US/questions/1014708
pref("offline-apps.allow_by_default", false);
// don't remember browsing history
pref("places.history.enabled", false);
// The cookie expires at the end of the session (when the browser closes).
// http://kb.mozillazine.org/Network.cookie.lifetimePolicy#2
pref("network.cookie.lifetimePolicy", 2);
// http://kb.mozillazine.org/Browser.cache.disk.enable
pref("browser.cache.disk.enable", false);
// http://kb.mozillazine.org/Browser.cache.memory.enable
//pref("browser.cache.memory.enable", false);
// CIS Version 1.2.0 October 21st, 2011 2.5.8 Disable Caching of SSL Pages
// http://kb.mozillazine.org/Browser.cache.disk_cache_ssl
pref("browser.cache.disk_cache_ssl", false);
// CIS Version 1.2.0 October 21st, 2011 2.5.2 Disallow Credential Storage
pref("signon.rememberSignons", false);
// CIS Version 1.2.0 October 21st, 2011 2.5.5 Delete Download History
// Zero (0) is an indication that no download history is retained for the current profile.
pref("browser.download.manager.retention", 0);
// CIS Version 1.2.0 October 21st, 2011 2.5.6 Delete Search and Form History
pref("browser.formfill.enable", false);
pref("browser.formfill.expire_days", 0);
// CIS Version 1.2.0 October 21st, 2011 2.5.7 Clear SSL Form Session Data
// http://kb.mozillazine.org/Browser.sessionstore.privacy_level#2
// Store extra session data for unencrypted (non-HTTPS) sites only.
// NOTE: CIS says 1, we use 2
pref("browser.sessionstore.privacy_level", 2);
// https://bugzil.la/238789#c19
pref("browser.helperApps.deleteTempFileOnExit", true);
// Disable the media cache, prvents HTML5 videos from being written to the OS temporary directory
// https://www.torproject.org/projects/torbrowser/design/
pref("media.cache_size", 0);
// https://support.mozilla.org/en-US/questions/973320
// https://developer.mozilla.org/en-US/docs/Mozilla/Preferences/Preference_reference/browser.pagethumbnails.capturing_disabled
pref("browser.pagethumbnails.capturing_disabled", true);
/******************************************************************************
* UI related *
* *
******************************************************************************/
// Webpages will not be able to affect the right-click menu
//pref("dom.event.contextmenu.enabled", false);
// Disable Recently Bookmarked Folder
// https://bugzilla.mozilla.org/show_bug.cgi?id=1248268
// https://hg.mozilla.org/releases/mozilla-release/rev/f98e3add979e
//pref("browser.bookmarks.showRecentlyBookmarked", false);
// Don't promote sync
pref("browser.syncPromoViewsLeftMap", "{\"addons\":0,\"bookmarks\":0,\"passwords\":0}");
// CIS 2.3.2 Disable Downloading on Desktop
pref("browser.download.folderList", 2);
// always ask the user where to download
// https://developer.mozilla.org/en/Download_Manager_preferences
pref("browser.download.useDownloadDir", false);
// https://wiki.mozilla.org/Privacy/Reviews/New_Tab
pref("browser.newtabpage.enabled", false);
// https://support.mozilla.org/en-US/kb/new-tab-page-show-hide-and-customize-top-sites#w_how-do-i-turn-the-new-tab-page-off
pref("browser.newtab.url", "about:blank");
// CIS Version 1.2.0 October 21st, 2011 2.1.2 Enable Auto Notification of Outdated Plugins
// https://wiki.mozilla.org/Firefox3.6/Plugin_Update_Awareness_Security_Review
// Note: Disabled, we get plugin updates from repository.
//pref("plugins.update.notifyUser", true);
// CIS Version 1.2.0 October 21st, 2011 2.1.3 Enable Information Bar for Outdated Plugins
pref("plugins.hide_infobar_for_outdated_plugin", false);
// CIS Mozilla Firefox 24 ESR v1.0.0 - 3.6 Enable IDN Show Punycode
// http://kb.mozillazine.org/Network.IDN_show_punycode
pref("network.IDN_show_punycode", true);
// http://kb.mozillazine.org/About:config_entries#Browser
// http://kb.mozillazine.org/Inline_autocomplete
pref("browser.urlbar.autoFill", false);
pref("browser.urlbar.autoFill.typed", false);
// http://www.labnol.org/software/browsers/prevent-firefox-showing-bookmarks-address-location-bar/3636/
// http://kb.mozillazine.org/Browser.urlbar.maxRichResults
// "Setting the preference to 0 effectively disables the Location Bar dropdown entirely."
pref("browser.urlbar.maxRichResults", 0);
// https://blog.mozilla.org/security/2010/03/31/plugging-the-css-history-leak/
// http://dbaron.org/mozilla/visited-privacy
pref("layout.css.visited_links_enabled", false);
// http://kb.mozillazine.org/Places.frecency.unvisited%28place_type%29Bonus
// http://kb.mozillazine.org/Disabling_autocomplete_-_Firefox#Firefox_3.5
pref("browser.urlbar.autocomplete.enabled", false);
// http://kb.mozillazine.org/Signon.autofillForms
// https://www.torproject.org/projects/torbrowser/design/#identifier-linkability
pref("signon.autofillForms", false);
// do not check if firefox is the default browser
pref("browser.shell.checkDefaultBrowser", false);
// CIS Version 1.2.0 October 21st, 2011 2.5.3 Disable Prompting for Credential Storage
pref("security.ask_for_password", 0);
// When security.ask_for_password is 2 (every n minutes), lock password storage every 5 minutes (default is 30)
pref("security.password_lifetime", 5);
// https://bugzilla.mozilla.org/show_bug.cgi?id=1166947
pref("signon.formlessCapture.enabled", false);
// Bug 9881: Open popups in new tabs (to avoid fullscreen popups)
pref("browser.link.open_newwindow.restriction", 0);
// Enable Insecure login field contextual warning
// https://bugzilla.mozilla.org/show_bug.cgi?id=1217162
pref("security.insecure_field_warning.contextual.enabled", true);
// Enable insecure password warnings (login forms in non-HTTPS pages)
// https://blog.mozilla.org/tanvi/2016/01/28/no-more-passwords-over-http-please/
// https://bugzilla.mozilla.org/show_bug.cgi?id=1319119
// https://bugzilla.mozilla.org/show_bug.cgi?id=1217156
pref("security.insecure_password.ui.enabled", true);
/******************************************************************************
* TLS / HTTPS / OCSP related stuff *
* *
******************************************************************************/
// https://blog.mozilla.org/security/2012/11/01/preloading-hsts/
// https://wiki.mozilla.org/Privacy/Features/HSTS_Preload_List
pref("network.stricttransportsecurity.preloadlist", false);
// Disable HSTS Priming, a beta feature rarely used that allows mixed content on HTTPS pages.
// https://wicg.github.io/hsts-priming/
// https://bugzilla.mozilla.org/show_bug.cgi?id=1246540#c145
// https://hg.mozilla.org/releases/mozilla-release/rev/d7d42cef7968
pref("security.mixed_content.send_hsts_priming", false);
pref("security.mixed_content.use_hsts", false);
// OWASP ASVS V9.1
// https://bugzilla.mozilla.org/show_bug.cgi?id=956906
pref("signon.storeWhenAutocompleteOff", false);
// CIS Version 1.2.0 October 21st, 2011 2.2.4 Enable Online Certificate Status Protocol
// https://en.wikipedia.org/wiki/Online_Certificate_Status_Protocol#Privacy_concerns
pref("security.OCSP.enabled", 0);
pref("security.OCSP.require", false);
// https://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox/
pref("security.ssl.enable_ocsp_stapling", true);
// require certificate revocation check through OCSP protocol.
// NOTICE: this leaks information about the sites you visit to the CA.
pref("security.OCSP.require", true);
// https://www.blackhat.com/us-13/briefings.html#NextGen
// https://media.blackhat.com/us-13/US-13-Daigniere-TLS-Secrets-Slides.pdf
// https://media.blackhat.com/us-13/US-13-Daigniere-TLS-Secrets-WP.pdf
// https://bugzil.la/917049
// https://bugzil.la/967977
pref("security.ssl.disable_session_identifiers", true);
// https://www.torproject.org/projects/torbrowser/design/index.html.en
pref("security.ssl.enable_false_start", true);
pref("security.enable_tls_session_tickets", false);
// TLS 1.[012]
// http://kb.mozillazine.org/Security.tls.version.max
// 1 = TLS 1.0 is the minimum required / maximum supported encryption protocol. (This is the current default for the maximum supported version.)
// 2 = TLS 1.1 is the minimum required / maximum supported encryption protocol.
pref("security.tls.version.min", 1);
pref("security.tls.version.max", 4);
// TLS version fallback
pref("security.tls.version.fallback-limit", 3);
// pinning
// https://wiki.mozilla.org/SecurityEngineering/Public_Key_Pinning#How_to_use_pinning
// "2. Strict. Pinning is always enforced."
pref("security.cert_pinning.enforcement_level", 2);
// disallow SHA-1
// https://bugzilla.mozilla.org/show_bug.cgi?id=1302140
// https://hg.mozilla.org/releases/mozilla-release/rev/43c724bde81c#l3.34
// http://www.scmagazine.com/mozilla-pulls-back-on-rejecting-sha-1-certs-outright/article/463913/
// 0 = allow SHA-1; 1 = forbid SHA-1; 2 = allow SHA-1 only if notBefore < 2016-01-01
// https://shattered.io/
pref("security.pki.sha1_enforcement_level", 1);
// https://wiki.mozilla.org/Security:Renegotiation#security.ssl.treat_unsafe_negotiation_as_broken
// see also CVE-2009-3555
pref("security.ssl.treat_unsafe_negotiation_as_broken", true);
// https://wiki.mozilla.org/Security:Renegotiation#security.ssl.require_safe_negotiation
// this makes browsing next to impossible=) (13.2.2012)
// update: the world is not ready for this! (6.5.2014)
// see also CVE-2009-3555
// The world must comply with this! (11.20.2016)
pref("security.ssl.require_safe_negotiation", true);
// https://support.mozilla.org/en-US/kb/certificate-pinning-reports
//
// we could also disable security.ssl.errorReporting.enabled, but I think it's
// good to leave the option to report potentially malicious sites if the user
// chooses to do so.
//
// you can test this at https://pinningtest.appspot.com/
pref("security.ssl.errorReporting.automatic", false);
// http://kb.mozillazine.org/Browser.ssl_override_behavior
// Pre-populate the current URL but do not pre-fetch the certificate.
pref("browser.ssl_override_behavior", 1);
/******************************************************************************
* CIPHERS *
* *
* you can debug the SSL handshake with tshark: *
* tshark -t ad -n -i wlan0 -T text -V -R ssl.handshake *
******************************************************************************/
// disable null ciphers
pref("security.ssl3.rsa_null_sha", false);
pref("security.ssl3.rsa_null_md5", false);
pref("security.ssl3.ecdhe_rsa_null_sha", false);
pref("security.ssl3.ecdhe_ecdsa_null_sha", false);
pref("security.ssl3.ecdh_rsa_null_sha", false);
pref("security.ssl3.ecdh_ecdsa_null_sha", false);
// SEED
// https://en.wikipedia.org/wiki/SEED
pref("security.ssl3.rsa_seed_sha", false);
// 40 bits...
pref("security.ssl3.rsa_rc4_40_md5", false);
pref("security.ssl3.rsa_rc2_40_md5", false);
// 56 bits
pref("security.ssl3.rsa_1024_rc4_56_sha", false);
// 128 bits
pref("security.ssl3.rsa_camellia_128_sha", false);
pref("security.ssl3.ecdhe_rsa_aes_128_sha", false);
pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", false);
pref("security.ssl3.ecdh_rsa_aes_128_sha", false);
pref("security.ssl3.ecdh_ecdsa_aes_128_sha", false);
pref("security.ssl3.dhe_rsa_camellia_128_sha", false);
pref("security.ssl3.dhe_rsa_aes_128_sha", false);
// RC4 (CVE-2013-2566)
pref("security.ssl3.ecdh_ecdsa_rc4_128_sha", false);
pref("security.ssl3.ecdh_rsa_rc4_128_sha", false);
pref("security.ssl3.ecdhe_ecdsa_rc4_128_sha", false);
pref("security.ssl3.ecdhe_rsa_rc4_128_sha", false);
pref("security.ssl3.rsa_rc4_128_md5", false);
pref("security.ssl3.rsa_rc4_128_sha", false);
// https://developer.mozilla.org/en-US/Firefox/Releases/38#Security
// https://bugzil.la/1138882
// https://rc4.io/
pref("security.tls.unrestricted_rc4_fallback", false);
// 3DES -> false because effective key size < 128
// https://en.wikipedia.org/wiki/3des#Security
// http://en.citizendium.org/wiki/Meet-in-the-middle_attack
// http://www-archive.mozilla.org/projects/security/pki/nss/ssl/fips-ssl-ciphersuites.html
pref("security.ssl3.dhe_dss_des_ede3_sha", false);
pref("security.ssl3.dhe_rsa_des_ede3_sha", false);
pref("security.ssl3.ecdh_ecdsa_des_ede3_sha", false);
pref("security.ssl3.ecdh_rsa_des_ede3_sha", false);
pref("security.ssl3.ecdhe_ecdsa_des_ede3_sha", false);
pref("security.ssl3.ecdhe_rsa_des_ede3_sha", false);
pref("security.ssl3.rsa_des_ede3_sha", false);
pref("security.ssl3.rsa_fips_des_ede3_sha", false);
// Ciphers with ECDH (without /e$/)
pref("security.ssl3.ecdh_rsa_aes_256_sha", false);
pref("security.ssl3.ecdh_ecdsa_aes_256_sha", false);
// 256 bits without PFS
pref("security.ssl3.rsa_camellia_256_sha", false);
// Ciphers with ECDHE and > 128bits
pref("security.ssl3.ecdhe_rsa_aes_256_sha", true);
pref("security.ssl3.ecdhe_ecdsa_aes_256_sha", true);
// GCM, yes please!
pref("security.ssl3.ecdhe_ecdsa_aes_128_gcm_sha256", true);
pref("security.ssl3.ecdhe_rsa_aes_128_gcm_sha256", true);
// ChaCha20 and Poly1305. Supported since Firefox 47.
// https://www.mozilla.org/en-US/firefox/47.0/releasenotes/
// https://tools.ietf.org/html/rfc7905
// https://bugzil.la/917571
// https://bugzil.la/1247860
// https://cr.yp.to/chacha.html
pref("security.ssl3.ecdhe_ecdsa_chacha20_poly1305_sha256", true);
pref("security.ssl3.ecdhe_rsa_chacha20_poly1305_sha256", true);
// Susceptible to the logjam attack - https://weakdh.org/
pref("security.ssl3.dhe_rsa_camellia_256_sha", false);
pref("security.ssl3.dhe_rsa_aes_256_sha", false);
// Ciphers with DSA (max 1024 bits)
pref("security.ssl3.dhe_dss_aes_128_sha", false);
pref("security.ssl3.dhe_dss_aes_256_sha", false);
pref("security.ssl3.dhe_dss_camellia_128_sha", false);
pref("security.ssl3.dhe_dss_camellia_256_sha", false);
// Fallbacks due compatibility reasons
pref("security.ssl3.rsa_aes_256_sha", true);
pref("security.ssl3.rsa_aes_128_sha", true);
// Disable static TLS insecure fallback whitelist
// https://bugzilla.mozilla.org/show_bug.cgi?id=1128227
pref("security.tls.insecure_fallback_hosts.use_static_list", false);
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