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Firefox telemetry and spy removal
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| # AUTHOR WARNING- recommend not using this script as it does not guard against the variety of tracking methods used by databrokers. | |
| # Please see https://www.iccl.ie/wp-content/uploads/2022/08/File-Stamped-2022-08-19-Oracle-Complaint.pdf | |
| # | |
| # Firefox telemetry and data collection denial | |
| This is a fork of haasn "Firefox bullshit removal" | |
| Also heavily based off pyllyukko "Firefox hardening" https://github.com/pyllyukko/user.js/ | |
| There are two versions, one for Firefox 68 Firefox and another for 70+. Thanks to Kein for the work on 70+ | |
| Instead of manually editing about:config, make changes to the user.js file | |
| ###How to use the user.js file | |
| Copy `user.js` in your current user profile, or (recommended) to a fresh, newly created Firefox profile directory. | |
| The file should be located at: | |
| | OS | Path | | |
| | -------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------- | | |
| | Windows 10 | %APPDATA%\Roaming\Mozilla\Firefox\Profiles\XXXXXXXX.your_profile_name\user.js | | |
| | Windows 7 | `%APPDATA%\Mozilla\Firefox\Profiles\XXXXXXXX.your_profile_name\user.js` | | |
| | Linux | `~/.mozilla/firefox/XXXXXXXX.your_profile_name/user.js` | | |
| | OS X | `~/Library/Application Support/Firefox/Profiles/XXXXXXXX.your_profile_name` | | |
| | Android | `/data/data/org.mozilla.firefox/files/mozilla/XXXXXXXX.your_profile_name` and see [issue #14](https://github.com/pyllyukko/user.js/issues/14) | | |
| | Sailfish OS + Alien Dalvik | `/opt/alien/data/data/org.mozilla.firefox/files/mozilla/XXXXXXXX.your_profile_name` | | |
| | Windows (portable) | `[firefox directory]\Data\profile\` | |
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| // by Kein | |
| /////////////////////////// | |
| // New since 68ESR // | |
| /////////////////////////// | |
| // TOR Uplifts features: | |
| // https://wiki.mozilla.org/Privacy/Privacy_Task_Force/firefox_about_config_privacy_tweeks | |
| user_pref("network.http.referer.XOriginTrimmingPolicy", 2); | |
| user_pref("network.http.referer.XOriginPolicy", 2); | |
| user_pref("network.http.referer.trimmingPolicy", 2); | |
| user_pref("dom.event.clipboardevents.enabled", false); | |
| user_pref("browser.urlbar.speculativeConnect.enabled", false); | |
| // Cache tracking: https://www.grepular.com/Preventing_Web_Tracking_via_the_Browser_Cache | |
| // user_pref("browser.cache.offline.enable", false); | |
| // Isolate cookies to 1st party domain. This WILL break logins/sessions | |
| // user_pref("privacy.firstparty.isolate", true); | |
| // Degrades performance of animations, like scrolling | |
| // user_pref("privacy.resistFingerprinting", true); | |
| // WebGL and DRM media | |
| user_pref("webgl.disabled", true); | |
| user_pref("media.eme.enabled", false); | |
| // Addons suggestions features, Highlights on Home Tab and Snippets | |
| user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons", false); | |
| user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features", false); | |
| user_pref("browser.newtabpage.activity-stream.feeds.section.highlights", false); | |
| user_pref("browser.newtabpage.activity-stream.feeds.snippets", false); | |
| user_pref("browser.newtabpage.activity-stream.section.highlights.includePocket", false); | |
| // Custom user preferences | |
| user_pref("browser.newtabpage.activity-stream.section.highlights.includeBookmarks", false); | |
| user_pref("browser.newtabpage.activity-stream.section.highlights.includeDownloads", false); | |
| user_pref("browser.newtabpage.activity-stream.section.highlights.includeVisited", false); | |
| user_pref("browser.newtabpage.activity-stream.showSearch", false); | |
| user_pref("browser.cache.disk.parent_directory", "N:\FIREFOX"); | |
| user_pref("browser.urlbar.suggest.openpage", false); | |
| user_pref("browser.urlbar.suggest.searches", false); | |
| user_pref("media.videocontrols.picture-in-picture.video-toggle.enabled", false); | |
| user_pref("signon.autofillForms", false); | |
| user_pref("signon.generation.enabled", false); | |
| user_pref("signon.management.page.breach-alerts.enabled", false); | |
| user_pref("signon.rememberSignons", false); | |
| user_pref("network.proxy.no_proxies_on", "192.168..1/24"); | |
| user_pref("network.proxy.socks_remote_dns", true); | |
| // Enable DNS-over-HTTPS (DoH) | |
| // See for details: https://support.mozilla.org/en-US/kb/firefox-dns-over-http | |
| // lets enable this by default. Set to 0 to disable DoH, 2 set TRR/DoH as priority but falls back to native, 3 only use DoH | |
| user_pref("network.trr.mode", 2); | |
| // ECH replaces ESNI | |
| // https://blog.mozilla.org/security/2021/01/07/encrypted-client-hello-the-future-of-esni-in-firefox/ | |
| user_pref("network.dns.echconfig.enabled", true) | |
| user_pref("network.dns.use_https_rr_as_altsvc", true) | |
| // From: https://gist.github.com/MrYar/751e0e5f3f1430db7ec5a8c8aa237b72 | |
| // Cleaned up for 79+ | |
| // Turn off "Sends data to servers when leaving pages" | |
| user_pref("beacon.enabled", false); | |
| // Prevention of some telemetry related to the newtab | |
| user_pref("browser.newtabpage.enhanced", false); | |
| // "In the release channels the Mozilla location service is used to help in figuring out regional search defaults." | |
| // Which means sending collectable data | |
| user_pref("browser.search.region", "US"); | |
| user_pref("browser.search.suggest.enabled", false); | |
| user_pref("browser.search.update", false); | |
| // Datareporting is telemetry | |
| user_pref("datareporting.healthreport.uploadEnabled", false); | |
| user_pref("datareporting.policy.dataSubmissionEnabled", false); | |
| user_pref("datareporting.sessions.current.clean", true); | |
| // Disables web browser access of HAL sensors | |
| user_pref("device.sensors.enabled", false); | |
| // Prevention of an android ADB Helper Add-on auto installer and other dev tools | |
| user_pref("devtools.webide.autoinstallFxdtAdapters", false); | |
| // See https://www.reddit.com/r/privacytoolsIO/comments/3fzbgy/you_may_be_tracked_by_your_battery_status_of_your/ | |
| user_pref("dom.battery.enabled", false); | |
| // See https://wiki.mozilla.org/Security/Reviews/Firefox/NavigationTimingAPI | |
| user_pref("dom.enable_performance", false); | |
| // If enabled, your list of installed addons are sent once a day to mozilla | |
| // https://blog.mozilla.org/addons/how-to-opt-out-of-add-on-metadata-updates/ | |
| user_pref("extensions.getAddons.cache.enabled", false); | |
| // Disable pocket for obvious reasons | |
| user_pref("extensions.pocket.enabled", false); | |
| // Geo location sends location data | |
| user_pref("geo.enabled", false); | |
| // If you mistype the keyword, then Firefox will leak the content of your address bar to | |
| // the default search engine instead of displaying some "The address wasn't understood" local error page | |
| user_pref("keyword.enabled", false); | |
| // Disable screensharing framework | |
| user_pref("media.getusermedia.screensharing.enabled", false); | |
| // Turn off WebRTC // see https://tinyurl.com/yc3yqnyv | |
| user_pref("media.navigator.enabled", false); | |
| user_pref("media.peerconnection.enabled", false); | |
| user_pref("media.peerconnection.ice.default_address_only", true); | |
| // Disable stat collection | |
| user_pref("media.video_stats.enabled", false); | |
| // Disable DNS prefetching | |
| user_pref("network.dns.disablePrefetch", true); | |
| // Disable speculative loading | |
| user_pref("network.http.speculative-parallel-limit", 0); | |
| // Disable prefetching and predicting | |
| user_pref("network.predictor.cleaned-up", true); | |
| user_pref("network.predictor.enabled", false); | |
| user_pref("network.prefetch-next", false); | |
| // Tracking protection. Though almost always ignored and useless... | |
| user_pref("privacy.donottrackheader.enabled", true); | |
| user_pref("privacy.trackingprotection.enabled", true); | |
| user_pref("privacy.trackingprotection.introCount", 20); | |
| // Overt telemetry disabling | |
| user_pref("toolkit.telemetry.updatePing.enabled", false); | |
| user_pref("browser.newtabpage.activity-stream.feeds.telemetry", false); | |
| user_pref("browser.newtabpage.activity-stream.telemetry", false); | |
| user_pref("browser.ping-centre.telemetry", false); | |
| user_pref("toolkit.telemetry.bhrPing.enabled", false); | |
| user_pref("toolkit.telemetry.enabled", false); | |
| user_pref("toolkit.telemetry.firstShutdownPing.enabled", false); | |
| user_pref("toolkit.telemetry.hybridContent.enabled", false); | |
| user_pref("toolkit.telemetry.newProfilePing.enabled", false); | |
| user_pref("toolkit.telemetry.reportingpolicy.firstRun", false); | |
| user_pref("toolkit.telemetry.shutdownPingSender.enabled", false); | |
| user_pref("toolkit.telemetry.unified", false); | |
| user_pref("toolkit.telemetry.server", ""); | |
| user_pref("toolkit.telemetry.archive.enabled", false); | |
| user_pref("devtools.onboarding.telemetry.logged", false); | |
| // Disable developer experiments and onboarding | |
| user_pref("browser.onboarding.enabled", false); | |
| user_pref("experiments.enabled", false); | |
| user_pref("network.allow-experiments", false); | |
| // Disable social networking site info exchange | |
| user_pref("social.directories", ""); | |
| user_pref("social.remote-install.enabled", false); | |
| user_pref("social.toast-notifications.enabled", false); | |
| user_pref("social.whitelist", ""); | |
| // Disable retrieval of safebrowsing lists | |
| user_pref("services.sync.prefs.sync.browser.safebrowsing.malware.enabled", false); | |
| user_pref("services.sync.prefs.sync.browser.safebrowsing.phishing.enabled", false); | |
| // Disable reporting of crash information | |
| user_pref("dom.ipc.plugins.reportCrashURL", false); | |
| user_pref("breakpad.reportURL", ""); | |
| // Safebrowsing sends a hash of your url to retrieve a list of partial matches. | |
| user_pref("browser.safebrowsing.blockedURIs.enabled", false); | |
| user_pref("browser.safebrowsing.downloads.enabled", false); | |
| user_pref("browser.safebrowsing.downloads.remote.enabled", false); | |
| user_pref("browser.safebrowsing.malware.enabled", false); | |
| user_pref("browser.safebrowsing.phishing.enabled", false); | |
| // Disable Firefox Screenshots | |
| user_pref("extensions.screenshots.disabled", true); | |
| user_pref("extensions.screenshots.system-disabled", true); | |
| user_pref("extensions.screenshots.upload-disabled", true); | |
| // Stops leave-page warning | |
| user_pref("dom.disable_beforeunload", true); | |
| // Don't constantly check if its the default browser | |
| user_pref("browser.shell.checkDefaultBrowser", false); | |
| // Keep the full url to see which sites are still http and not https | |
| user_pref("browser.urlbar.trimURLs", false); | |
| // No need to warn us | |
| user_pref("general.warnOnAboutConfig", false); | |
| user_pref("browser.aboutConfig.showWarning", false); |
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| // Turn off "Sends data to servers when leaving pages" | |
| user_pref("beacon.enabled", false); | |
| // Prevention of some telemetry related to the newtab | |
| user_pref("browser.newtabpage.directory.ping", ""); | |
| user_pref("browser.newtabpage.directory.source", ""); | |
| user_pref("browser.newtabpage.enhanced", false); | |
| // "In the release channels the Mozilla location service is used to help in figuring out regional search defaults." | |
| // Which means sending collectable data | |
| user_pref("browser.search.geoip.url", ""); | |
| user_pref("browser.search.region", "US"); | |
| user_pref("browser.search.suggest.enabled", false); | |
| user_pref("browser.search.update", false); | |
| // Selfsupport sends a heartbeat | |
| user_pref("browser.selfsupport.url", ""); | |
| // Datareporting is telemetry | |
| user_pref("datareporting.healthreport.uploadEnabled", false); | |
| user_pref("datareporting.policy.dataSubmissionEnabled", false); | |
| user_pref("datareporting.sessions.current.clean", true); | |
| // Disables web browser access of HAL sensors | |
| user_pref("device.sensors.enabled", false); | |
| // Prevention of an android ADB Helper Add-on auto installer and other dev tools user_pref("devtools.webide.autoinstallADBHelper", false); | |
| user_pref("devtools.webide.autoinstallFxdtAdapters", false); | |
| user_pref("devtools.webide.enabled", false); | |
| user_pref("devtools.debugger.remote-enabled", false); | |
| user_pref("devtools.chrome.enabled", false); | |
| user_pref("devtools.debugger.force-local", true); | |
| // See https://www.reddit.com/r/privacytoolsIO/comments/3fzbgy/you_may_be_tracked_by_your_battery_status_of_your/ | |
| user_pref("dom.battery.enabled", false); | |
| // See https://wiki.mozilla.org/Security/Reviews/Firefox/NavigationTimingAPI | |
| user_pref("dom.enable_performance", false); | |
| // If enabled, your list of installed addons are sent once a day to mozilla | |
| // https://blog.mozilla.org/addons/how-to-opt-out-of-add-on-metadata-updates/ | |
| user_pref("extensions.getAddons.cache.enabled", false); | |
| // Disable pocket for obvious reasons | |
| user_pref("extensions.pocket.enabled", false); | |
| // Geo location sends location data | |
| user_pref("geo.enabled", false); | |
| // If you mistype the keyword, then Firefox will leak the content of your address bar to | |
| // the default search engine instead of displaying some "The address wasn't understood" local error page | |
| user_pref("keyword.enabled", false); | |
| // Disable screensharing framework | |
| user_pref("media.getusermedia.screensharing.enabled", false); | |
| // Turn off WebRTC // see https://tinyurl.com/yc3yqnyv | |
| user_pref("media.navigator.enabled", false); | |
| user_pref("media.peerconnection.enabled", false); | |
| user_pref("media.peerconnection.ice.default_address_only", true); | |
| // Disable stat collection | |
| user_pref("media.video_stats.enabled", false); | |
| // Disable DNS prefetching | |
| user_pref("network.dns.disablePrefetch", true); | |
| // Disable speculative loading | |
| user_pref("network.http.speculative-parallel-limit", 0); | |
| // Disable prefetching and predicting | |
| user_pref("network.predictor.cleaned-up", true); | |
| user_pref("network.predictor.enabled", false); | |
| user_pref("network.prefetch-next", false); | |
| // Tracking protection. Though almost always ignored and useless... | |
| user_pref("privacy.donottrackheader.enabled", true); | |
| user_pref("privacy.trackingprotection.enabled", true); | |
| user_pref("privacy.trackingprotection.introCount", 20); | |
| // Overt telemetry disabling | |
| user_pref("toolkit.telemetry.updatePing.enabled", false); | |
| user_pref("browser.newtabpage.activity-stream.feeds.telemetry", false); | |
| user_pref("browser.newtabpage.activity-stream.telemetry", false); | |
| user_pref("browser.ping-centre.telemetry", false); | |
| user_pref("toolkit.telemetry.bhrPing.enabled", false); | |
| user_pref("toolkit.telemetry.enabled", false); | |
| user_pref("toolkit.telemetry.firstShutdownPing.enabled", false); | |
| user_pref("toolkit.telemetry.hybridContent.enabled", false); | |
| user_pref("toolkit.telemetry.newProfilePing.enabled", false); | |
| user_pref("toolkit.telemetry.reportingpolicy.firstRun", false); | |
| user_pref("toolkit.telemetry.shutdownPingSender.enabled", false); | |
| user_pref("toolkit.telemetry.unified", false); | |
| user_pref("toolkit.telemetry.server", ""); | |
| user_pref("toolkit.telemetry.archive.enabled", false); | |
| user_pref("devtools.onboarding.telemetry.logged", false); | |
| // Disable developer experiments and onboarding | |
| user_pref("browser.onboarding.enabled", false); | |
| user_pref("experiments.enabled", false); | |
| user_pref("network.allow-experiments", false); | |
| // Disable social networking site info exchange | |
| user_pref("social.directories", ""); | |
| user_pref("social.remote-install.enabled", false); | |
| user_pref("social.toast-notifications.enabled", false); | |
| user_pref("social.whitelist", ""); | |
| // Disable retrieval of safebrowsing lists | |
| user_pref("services.sync.prefs.sync.browser.safebrowsing.malware.enabled", false); | |
| user_pref("services.sync.prefs.sync.browser.safebrowsing.phishing.enabled", false); | |
| // Disable reporting of crash information | |
| user_pref("dom.ipc.plugins.reportCrashURL", false); | |
| user_pref("breakpad.reportURL", ""); | |
| // Safebrowsing sends a hash of your url to retrieve a list of partial matches. | |
| user_pref("browser.safebrowsing.blockedURIs.enabled", false); | |
| user_pref("browser.safebrowsing.downloads.enabled", false); | |
| user_pref("browser.safebrowsing.downloads.remote.enabled", false); | |
| user_pref("browser.safebrowsing.malware.enabled", false); | |
| user_pref("browser.safebrowsing.phishing.enabled", false); | |
| // Disable Firefox Screenshots | |
| user_pref("extensions.screenshots.disabled", true); | |
| user_pref("extensions.screenshots.system-disabled", true); | |
| user_pref("extensions.screenshots.upload-disabled", true); | |
| // Enable DNS-over-HTTPS (DoH) | |
| // network.trr.mode turns on DoH. It takes the following values | |
| // 0 - Default value in standard Firefox installations (currently is 5, which means DoH is disabled) | |
| // 1 - DoH is enabled, but Firefox picks if it uses DoH or regular DNS based o which returns faster query responses | |
| // 2 - DoH is enabled, and regular DNS works as a backup | |
| // 3 - DoH is enabled, and regular DNS is disabled | |
| // 5 - DoH is disabled | |
| // Users may want to set to 3 temporarily to verify DoH is working | |
| user_pref("network.trr.mode", 2); | |
| // users can use their own DoH server URL https://github.com/curl/curl/wiki/DNS-over-HTTPS#publicly-available-servers | |
| user_pref("network.trr.uri", "https://mozilla.cloudflare-dns.com/dns-query"); | |
| // If DoH doesn't work, try uncommenting the line below (1.1.1.1 is cloudflare, can use google's 8.8.8.8 also) | |
| // user_pref("network.trr.bootstrapAddress", 1.1.1.1); | |
| // Enable Encrypted-SNI. Its a good idea to make sure its working by checking https://www.cloudflare.com/ssl/encrypted-sni/ | |
| user_pref("network.security.esni.enabled", true); | |
| // --- | |
| // --- Protective but not telemetry or data collection related | |
| // --- | |
| // Disable javascript takeover of mouse menu | |
| user_pref("dom.event.contextmenu.enabled", false); | |
| // Stops leave-page warning | |
| user_pref("dom.disable_beforeunload", true); | |
| // Don't constantly check if its the default browser | |
| user_pref("browser.shell.checkDefaultBrowser", false); | |
| // Keep the full url to see which sites are still http and not https | |
| user_pref("browser.urlbar.trimURLs", false); | |
| // No need to warn us | |
| user_pref("general.warnOnAboutConfig", false); | |
| // Disable automatically updating your extensions (uncomment for settings to take effect) | |
| //user_pref("extensions.update.autoUpdateDefault", false); | |
| //user_pref("extensions.update.enabled", false); | |
| // Disable automatic upgrading to newest version. Program will still ask you if you want to upgrade. (uncomment to activate setting) | |
| //user_pref("app.update.auto", false); | |
| //user_pref("app.update.enabled", false); |
It appears as though this script does not effectively guard against data tracking methods detailed in this lawsuit. Recommend not using this script anymore as it may provide a false sense of privacy. https://www.iccl.ie/wp-content/uploads/2022/08/File-Stamped-2022-08-19-Oracle-Complaint.pdf
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ECH replaces ESNI in Firefox 85+
Also enabled DoH by default (mode 2).