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Last active October 15, 2021 14:38
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Minimalistic Firefox
// Mozilla User Preferences
// To change a preference value, you can either:
// - modify it via the UI (e.g. via about:config in the browser); or
// - set it within a user.js file in your profile (create it if it doesn't exist).
//
// Profile folder location on different systems:
// Windows: C:\Users\<username>\AppData\Roaming\Mozilla\Firefox\Profiles\xxxxxxxx.default
// Mac OS X: Users/<username>/Library/Application Support/Firefox/Profiles/xxxxxxxx.default
// Linux: /home/<username>/.mozilla/firefox/xxxxxxxx.default
// === Major behavior options ===
// Optional - Disable newtab page entirely
// user_pref("browser.newtabpage.enabled", false);
// Optional - Use blank page "When Firefox starts"
// user_pref("browser.startup.page", 0);
// Optional - Disable address bar suggestion sources
//user_pref("browser.urlbar.suggest.bookmark", false);
//user_pref("browser.urlbar.suggest.history", false);
// Optional - Select all text when clicking once in the URL bar
//user_pref("browser.urlbar.clickSelectsAll", true);
//user_pref("browser.urlbar.doubleClickSelectsAll", true);
// === Security behaviors ===
// Optional
user_pref("browser.urlbar.trimURLs", false); // Don't trim HTTP/HTTPS off of URLs in the address bar
user_pref("network.IDN_show_punycode", true); // Show punycode. Help protect from character 'spoofing' eg: xn--80ak6aa92e.com -> аррӏе.com
// Optional - Privacy
user_pref("plugins.enumerable_names", ""); // Disable site reading installed plugins.
user_pref("network.http.sendSecureXSiteReferrer", false); // Disable referrer headers between https websites.
user_pref("browser.send_pings", false); // Prevent website tracking clicks.
user_pref("browser.send_pings.require_same_host", true); // Only send pings if send and receiving host match (same website).
user_pref("dom.battery.enabled", false); // Disable website reading how much battery your mobile device or laptop has.
user_pref("dom.event.clipboardevents.enabled", false); // Disable sites from disabling copy/paste
user_pref("geo.enabled", false);
user_pref("geo.wifi.uri", "");
user_pref("browser.search.geoip.url", "");
user_pref("browser.cache.offline.enable", false); // Disables offline cache.
//user_pref("browser.cache.disk_cache_ssl", false); // Disables caching for ssl connections.
//user_pref("browser.cache.disk.enable", false); // Disables caching on hardrive.
//user_pref("browser.cache.memory.enable", false); // Disables caching in memory.
// Optional - Disable prefetching
user_pref("network.http.speculative-parallel-limit", 0); // prefetch link on hover.
user_pref("network.predictor.enabled", false);
user_pref("network.dns.disablePrefetch", true);
user_pref("network.prefetch-next", false);
// Optional - disable peer connections and websockets (breaks some sites!)
user_pref("media.peerconnection.enabled", false);
user_pref("network.websocket.enabled", false);
// Optional - disable firefox updates
user_pref("app.update.auto", false);
user_pref("app.update.checkInstallTime", false);
user_pref("app.update.doorhanger", false); // Annoying "new verion availible" popup
// Optional - disable extension updates
user_pref("extensions.systemAddon.update.enabled", false);
user_pref("extensions.update.enabled", false);
user_pref("extensions.update.autoUpdateDefault", false);
// === Annoyances ===
// Optional - Disable new user annoyances
user_pref("app.normandy.first_run", false);
user_pref("browser.feeds.showFirstRunUI", false);
user_pref("browser.newtabpage.introShown", true);
user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features", false); // Disable "Feature Recommendations"
user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons", false); // Disable "Recommended Extensions"
// Optional - Disable molly-guard annoyances
user_pref("full-screen-api.warning.timeout", 0); // Don't warn when video goes fullscreen
user_pref("general.warnOnAboutConfig", false); // Don't warn when opening about:config
// Optional - Disable accessibility annoyances
user_pref("accessibility.force_disabled", 1);
user_pref("accessibility.typeaheadfind.flashBar", 0);
// === Universally desired ===
// Disable captive portal port garbage
user_pref("captivedetect.maxRetryCount", 0);
user_pref("captivedetect.canonicalURL", "http://localhost");
user_pref("network.captive-portal-service.enabled", false);
user_pref("browser.newtabpage.activity-stream.asrouter.disable-captive-portal-vpn-promo", true);
// Disable search engine updates
user_pref("browser.search.geoSpecificDefaults.url", "https://localhost");
user_pref("browser.search.searchEnginesURL", "https://localhost");
user_pref("browser.search.suggest.enabled", false);
user_pref("browser.search.update", false);
user_pref("browser.search.update.interval", 995795774646);
// Disable overt telemetry
user_pref("browser.ping-centre.telemetry", false);
user_pref("toolkit.telemetry.cachedClientID", "");
user_pref("toolkit.telemetry.archive.enabled", false);
user_pref("toolkit.telemetry.bhrPing.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.updatePing.enabled", false);
// Disable experiments/studies
user_pref("app.shield.optoutstudies.enabled", false);
user_pref("experiments.activeExperiment", false);
user_pref("experiments.manifest.uri", "https://localhost");
// Disable DNS of HTTPS
user_pref("app.normandy.enabled", false);
user_pref("app.normandy.api_url", "http://localhost");
user_pref("app.normandy.shieldLearnMoreUrl", "http://localhost");
// Disable syncing
user_pref("services.settings.server", "https://localhost");
user_pref("services.sync.nextSync", 0);
user_pref("signon.passwordEditCapture.enabled", false);
user_pref("services.sync.engine.passwords", false);
user_pref("services.sync.engine.bookmarks", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.enabled", false);
user_pref("services.sync.prefs.sync.browser.safebrowsing.downloads.enabled", false);
user_pref("services.sync.prefs.sync.browser.safebrowsing.passwords.enabled", false)
user_pref("services.sync.prefs.sync.browser.safebrowsing.malware.enabled", false);
user_pref("services.sync.prefs.sync.browser.safebrowsing.phishing.enabled", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.feeds.section.highlights", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.feeds.section.topstories", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.feeds.snippets", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.feeds.topsites", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.section.highlights.includeBookmarks", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.section.highlights.includeDownloads", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.section.highlights.includePocket", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.section.highlights.includeVisited", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.section.highlights.rows", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.section.topstories.rows", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.showSearch", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.showSponsored", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.showSponsoredTopSites", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.activity-stream.topSitesRows", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.enabled", false);
user_pref("services.sync.prefs.sync.browser.newtabpage.pinned", false);
// Disable "Hello"
user_pref("loop.enabled", false);
// Disable "Pocket"
user_pref("browser.newtabpage.activity-stream.section.highlights.includePocket", false);
user_pref("extensions.pocket.enabled", false);
user_pref("extensions.pocket.site", "");
user_pref("extensions.pocket.oAuthConsumerKey", "");
user_pref("extensions.pocket.api", "");
user_pref("browser.pocket.enabled", false); // for older versions
user_pref("browser.newtabpage.activity-stream.discoverystream.endpointSpocsClear", "");
user_pref("browser.newtabpage.activity-stream.discoverystream.endpoints", "");
user_pref("browser.newtabpage.activity-stream.discoverystream.spocs-endpoint", "");
user_pref("browser.newtabpage.activity-stream.discoverystream.spocs-endpoint-query", "");
// minimize newtab page to just your "Top Sites" (most viewed)
user_pref("browser.newtabpage.activity-stream.sectionOrder", "topsites"); // only show "Top Sites"
user_pref("browser.newtabpage.activity-stream.feeds.system.topstories", false);
user_pref("browser.newtabpage.activity-stream.improvesearch.topSiteSearchShortcuts", false); // don't show advertised sites
user_pref("browser.newtabpage.activity-stream.improvesearch.topSiteSearchShortcuts.searchEngines", ""); // don't remember advertised sites
user_pref("browser.newtabpage.activity-stream.improvesearch.topSiteSearchShortcuts.havePinned", ""); // just in case
user_pref("browser.newtabpage.activity-stream.default.sites", ""); // self promoted sites
user_pref("browser.newtabpage.activity-stream.discoverystream.config", "{}");
user_pref("browser.newtabpage.activity-stream.telemetry.structuredIngestion.endpoint", "");
user_pref("browser.newtabpage.activity-stream.showSponsored", false)
user_pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false);
user_pref("browser.newtabpage.activity-stream.feeds.recommendationprovider", false);
user_pref("browser.newtabpage.activity-stream.discoverystream.spocs-endpoint", "");
user_pref("browser.newtabpage.activity-stream.discoverystream.spocs-endpoint-query", "");
user_pref("browser.newtabpage.activity-stream.discoverystream.spocs.personalized", false);
user_pref("browser.newtabpage.activity-stream.discoverystream.sponsored-collections.enabled", false);
user_pref("browser.newtabpage.activity-stream.feeds.aboutpreferences", false);
user_pref("browser.newtabpage.activity-stream.feeds.discoverystreamfeed", false);
user_pref("browser.newtabpage.activity-stream.feeds.favicon", false);
//user_pref("browser.newtabpage.activity-stream.feeds.newtabinit", true); // disable new tab page from loading
//user_pref("browser.newtabpage.activity-stream.feeds.places", false); // disable "Top Sites" buttons from being functional
//user_pref("browser.newtabpage.activity-stream.feeds.prefs", false); // disable to break the newtab page ;)
user_pref("browser.newtabpage.activity-stream.feeds.recommendationprovider", false);
user_pref("browser.newtabpage.activity-stream.feeds.section.highlights", false);
user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false);
user_pref("browser.newtabpage.activity-stream.feeds.section.topstories.options", "");
// Disable new tab page extras
user_pref("browser.newtab.preload", false);
user_pref("browser.newtabpage.enhanced", false);
user_pref("browser.newtabpage.directory.source", "data:text/plain,{}");
user_pref("browser.newtabpage.activity-stream.feeds.section.highlights", false);
//user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false);
user_pref("browser.newtabpage.activity-stream.feeds.section.topstories.options", "");
user_pref("browser.newtabpage.activity-stream.feeds.snippets", false);
user_pref("browser.newtabpage.activity-stream.feeds.telemetry", false);
//user_pref("browser.newtabpage.activity-stream.feeds.topsites", false);
user_pref("browser.newtabpage.activity-stream.prerender", false);
user_pref("browser.newtabpage.activity-stream.discoverystream.enabled", false);
user_pref("browser.newtabpage.activity-stream.telemetry", false);
user_pref("browser.newtabpage.activity-stream.telemetry.ping.endpoint", "https://localhost");
user_pref("browser.newtabpage.activity-stream.fxaccounts.endpoint", "https://localhost");
// Disable address bar spying
user_pref("browser.urlbar.suggest.engines", false);
user_pref("browser.urlbar.suggest.quicksuggest", false);
user_pref("browser.urlbar.suggest.quicksuggest.sponsored", false);
user_pref("browser.urlbar.sponsoredTopSites", 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 reporting of crash information
user_pref("dom.ipc.plugins.reportCrashURL", false);
user_pref("breakpad.reportURL", "https://localhost");
// Disable default home startup scripts
user_pref("browser.selfsupport.url", "");
user_pref("browser.aboutHomeSnippets.updateUrL", "");
user_pref("browser.startup.homepage_override.mstone", "ignore");
user_pref("browser.startup.homepage_override.buildID", "");
user_pref("startup.homepage_welcome_url", "");
user_pref("startup.homepage_welcome_url.additional", "");
user_pref("startup.homepage_override_url", "");
// Disable 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.malware.enabled", false);
user_pref("browser.safebrowsing.phishing.enabled", false);
user_pref("browser.safebrowsing.blockedURIs.enabled", false);
// Disable safebrowsing retrieval options
user_pref("browser.safebrowsing.downloads.remote.block_dangerous", false);
user_pref("browser.safebrowsing.downloads.remote.block_dangerous_host", false);
user_pref("browser.safebrowsing.downloads.remote.block_potentially_unwanted", false);
user_pref("browser.safebrowsing.downloads.remote.block_uncommon", false);
user_pref("browser.safebrowsing.downloads.remote.enabled", false);
user_pref("browser.safebrowsing.downloads.remote.url", "https://localhost");
// Safebrowsing related URLs
user_pref("browser.safebrowsing.provider.google.advisoryURL", "https://localhost'");
user_pref("browser.safebrowsing.provider.google.gethashURL", "https://localhost");
user_pref("browser.safebrowsing.provider.google.lists", "https://localhost");
user_pref("browser.safebrowsing.provider.google.reportMalwareMistakeURL", "https://localhost");
user_pref("browser.safebrowsing.provider.google.reportPhishMistakeURL", "https://localhost");
user_pref("browser.safebrowsing.provider.google.reportURL", "https://localhost");
user_pref("browser.safebrowsing.provider.google.updateURL", "https://localhost");
user_pref("browser.safebrowsing.provider.google4.advisoryURL", "https://localhost");
user_pref("browser.safebrowsing.provider.google4.dataSharingURL", "https://localhost");
user_pref("browser.safebrowsing.provider.google4.gethashURL", "https://localhost");
user_pref("browser.safebrowsing.provider.google4.reportMalwareMistakeURL", "https://localhost");
user_pref("browser.safebrowsing.provider.google4.reportPhishMistakeURL", "https://localhost");
user_pref("browser.safebrowsing.provider.google4.reportURL", "https://localhost");
user_pref("browser.safebrowsing.provider.google4.updateURL", "https://localhost");
user_pref("browser.safebrowsing.provider.mozilla.gethashURL", "https://localhost");
user_pref("browser.safebrowsing.provider.mozilla.nextupdatetime", "995795774646");
user_pref("browser.safebrowsing.provider.mozilla.updateURL", "https://localhost");
user_pref("browser.safebrowsing.reportPhishURL", "https://localhost");
// Kneecap "Report to Mozilla" option on the "Untrusted Connection" error page
user_pref("security.ssl.errorReporting.url", "https://localhost");
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