nix/home-manager/common/software/gui/firefox/arkenfox-user.js

/******
*    name: arkenfox user.js
*    date: 7 June 2024
* version: 126
*    urls: https://github.com/arkenfox/user.js [repo]
*        : https://arkenfox.github.io/gui/ [interactive]

* README:

  1. Consider using Tor Browser if it meets your needs or fits your threat model
       * https://2019.www.torproject.org/about/torusers.html
  2. Read the entire wiki
       * https://github.com/arkenfox/user.js/wiki
  3. If you skipped step 2, return to step 2
  4. Make changes in a user-overrides.js
       * There are often trade-offs and conflicts between security vs privacy vs anti-tracking
         and these need to be balanced against functionality & convenience & breakage
       * Some site breakage and unintended consequences will happen. Everyone's experience will differ
         e.g. some user data is erased on exit (section 2800), change this to suit your needs
       * While not 100% definitive, search for "[SETUP" tags
  5. Some tag info
       [SETUP-SECURITY] it's one item, read it
            [SETUP-WEB] can cause some websites to break
         [SETUP-CHROME] changes how Firefox itself behaves (i.e. not directly website related)
  6. Override Recipes: https://github.com/arkenfox/user.js/issues/1080

* RELEASES: https://github.com/arkenfox/user.js/releases

* INDEX:
  0100: STARTUP
  0200: GEOLOCATION
  0300: QUIETER FOX
  0400: SAFE BROWSING
  0600: BLOCK IMPLICIT OUTBOUND
  0700: DNS / DoH / PROXY / SOCKS
  0800: LOCATION BAR / SEARCH BAR / SUGGESTIONS / HISTORY / FORMS
  0900: PASSWORDS
  1000: DISK AVOIDANCE
  1200: HTTPS (SSL/TLS / OCSP / CERTS / HPKP)
  1600: REFERERS
  1700: CONTAINERS
  2000: PLUGINS / MEDIA / WEBRTC
  2400: DOM (DOCUMENT OBJECT MODEL)
  2600: MISCELLANEOUS
  2700: ETP (ENHANCED TRACKING PROTECTION)
  2800: SHUTDOWN & SANITIZING
  4000: FPP (fingerprintingProtection)
  4500: RFP (resistFingerprinting)
  5000: OPTIONAL OPSEC
  5500: OPTIONAL HARDENING
  6000: DON'T TOUCH
  7000: DON'T BOTHER
  8000: DON'T BOTHER: FINGERPRINTING
  9000: NON-PROJECT RELATED
  9999: DEPRECATED / RENAMED

******/

user_pref("_user.js.parrot", "START: Oh yes, the Norwegian Blue... what's wrong with it?");

/* 0000: disable about:config warning ***/
user_pref("browser.aboutConfig.showWarning", false);

/*** [SECTION 0100]: STARTUP ***/
user_pref("_user.js.parrot", "0100 syntax error: the parrot's dead!");
user_pref("browser.startup.page", 0);
user_pref("browser.startup.homepage", "about:blank");
user_pref("browser.newtabpage.enabled", false);
user_pref("browser.newtabpage.activity-stream.showSponsored", false); // [FF58+]
user_pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false); // [FF83+] Shortcuts>Sponsored shortcuts
user_pref("browser.newtabpage.activity-stream.default.sites", "");

/*** [SECTION 0200]: GEOLOCATION ***/
user_pref("_user.js.parrot", "0200 syntax error: the parrot's definitely deceased!");
user_pref("geo.provider.network.url", "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%");
user_pref("geo.provider.ms-windows-location", false); // [WINDOWS]
user_pref("geo.provider.use_corelocation", false); // [MAC]
user_pref("geo.provider.use_gpsd", false); // [LINUX] [HIDDEN PREF]
user_pref("geo.provider.use_geoclue", false); // [FF102+] [LINUX]

/*** [SECTION 0300]: QUIETER FOX ***/
user_pref("_user.js.parrot", "0300 syntax error: the parrot's not pinin' for the fjords!");
user_pref("extensions.getAddons.showPane", false); // [HIDDEN PREF]
user_pref("extensions.htmlaboutaddons.recommendations.enabled", false);
user_pref("browser.discovery.enabled", false);
user_pref("browser.shopping.experience2023.enabled", false); // [DEFAULT: false]
user_pref("datareporting.policy.dataSubmissionEnabled", false);
user_pref("datareporting.healthreport.uploadEnabled", false);
user_pref("toolkit.telemetry.unified", false);
user_pref("toolkit.telemetry.enabled", false); // see [NOTE]
user_pref("toolkit.telemetry.server", "data:,");
user_pref("toolkit.telemetry.archive.enabled", false);
user_pref("toolkit.telemetry.newProfilePing.enabled", false); // [FF55+]
user_pref("toolkit.telemetry.shutdownPingSender.enabled", false); // [FF55+]
user_pref("toolkit.telemetry.updatePing.enabled", false); // [FF56+]
user_pref("toolkit.telemetry.bhrPing.enabled", false); // [FF57+] Background Hang Reporter
user_pref("toolkit.telemetry.firstShutdownPing.enabled", false); // [FF57+]
user_pref("toolkit.telemetry.coverage.opt-out", true); // [HIDDEN PREF]
user_pref("toolkit.coverage.opt-out", true); // [FF64+] [HIDDEN PREF]
user_pref("toolkit.coverage.endpoint.base", "");
user_pref("browser.newtabpage.activity-stream.feeds.telemetry", false);
user_pref("browser.newtabpage.activity-stream.telemetry", false);
user_pref("app.shield.optoutstudies.enabled", false);
user_pref("app.normandy.enabled", false);
user_pref("app.normandy.api_url", "");
user_pref("breakpad.reportURL", "");
user_pref("browser.tabs.crashReporting.sendReport", false); // [FF44+]
user_pref("browser.crashReports.unsubmittedCheck.autoSubmit2", false); // [DEFAULT: false]
user_pref("captivedetect.canonicalURL", "");
user_pref("network.captive-portal-service.enabled", false); // [FF52+]
user_pref("network.connectivity-service.enabled", false);

/*** [SECTION 0400]: SAFE BROWSING (SB) ***/
user_pref("_user.js.parrot", "0400 syntax error: the parrot's passed on!");
user_pref("browser.safebrowsing.downloads.remote.enabled", false);

/*** [SECTION 0600]: BLOCK IMPLICIT OUTBOUND [not explicitly asked for - e.g. clicked on] ***/
user_pref("_user.js.parrot", "0600 syntax error: the parrot's no more!");
user_pref("network.prefetch-next", false);
user_pref("network.dns.disablePrefetch", true);
user_pref("network.predictor.enabled", false);
user_pref("network.predictor.enable-prefetch", false); // [FF48+] [DEFAULT: false]
user_pref("network.http.speculative-parallel-limit", 0);
user_pref("browser.places.speculativeConnect.enabled", false);

/*** [SECTION 0700]: DNS / DoH / PROXY / SOCKS ***/
user_pref("_user.js.parrot", "0700 syntax error: the parrot's given up the ghost!");
user_pref("network.proxy.socks_remote_dns", true);
user_pref("network.file.disable_unc_paths", true); // [HIDDEN PREF]
user_pref("network.gio.supported-protocols", ""); // [HIDDEN PREF] [DEFAULT: "" FF118+]

/*** [SECTION 0800]: LOCATION BAR / SEARCH BAR / SUGGESTIONS / HISTORY / FORMS ***/
user_pref("_user.js.parrot", "0800 syntax error: the parrot's ceased to be!");
user_pref("browser.urlbar.speculativeConnect.enabled", false);
user_pref("browser.search.suggest.enabled", false);
user_pref("browser.urlbar.suggest.searches", false);
user_pref("browser.urlbar.trending.featureGate", false);
user_pref("browser.urlbar.addons.featureGate", false); // [FF115+]
user_pref("browser.urlbar.mdn.featureGate", false); // [FF117+] [HIDDEN PREF]
user_pref("browser.urlbar.pocket.featureGate", false); // [FF116+] [DEFAULT: false]
user_pref("browser.urlbar.weather.featureGate", false); // [FF108+] [DEFAULT: false]
user_pref("browser.urlbar.yelp.featureGate", false); // [FF124+] [DEFAULT: false]
user_pref("browser.formfill.enable", false);
user_pref("browser.search.separatePrivateDefault", true); // [FF70+]
user_pref("browser.search.separatePrivateDefault.ui.enabled", true); // [FF71+]

/*** [SECTION 0900]: PASSWORDS ***/
user_pref("_user.js.parrot", "0900 syntax error: the parrot's expired!");
user_pref("signon.autofillForms", false);
user_pref("signon.formlessCapture.enabled", false);
user_pref("network.auth.subresource-http-auth-allow", 1);

/*** [SECTION 1000]: DISK AVOIDANCE ***/
user_pref("_user.js.parrot", "1000 syntax error: the parrot's gone to meet 'is maker!");
user_pref("browser.cache.disk.enable", false);
user_pref("browser.privatebrowsing.forceMediaMemoryCache", true); // [FF75+]
user_pref("media.memory_cache_max_size", 65536);
user_pref("browser.sessionstore.privacy_level", 2);
user_pref("toolkit.winRegisterApplicationRestart", false);
user_pref("browser.shell.shortcutFavicons", false);

/*** [SECTION 1200]: HTTPS (SSL/TLS / OCSP / CERTS / HPKP) ***/
user_pref("_user.js.parrot", "1200 syntax error: the parrot's a stiff!");
user_pref("security.ssl.require_safe_negotiation", true);
user_pref("security.tls.enable_0rtt_data", false);
user_pref("security.OCSP.enabled", 1); // [DEFAULT: 1]
user_pref("security.OCSP.require", true);
user_pref("security.cert_pinning.enforcement_level", 2);
user_pref("security.remote_settings.crlite_filters.enabled", true);
user_pref("security.pki.crlite_mode", 2);

/** MIXED CONTENT ***/
user_pref("dom.security.https_only_mode", true); // [FF76+]
user_pref("dom.security.https_only_mode_send_http_background_request", false);
user_pref("security.ssl.treat_unsafe_negotiation_as_broken", true);
user_pref("browser.xul.error_pages.expert_bad_cert", true);

/*** [SECTION 1600]: REFERERS ***/
user_pref("_user.js.parrot", "1600 syntax error: the parrot rests in peace!");
user_pref("network.http.referer.XOriginTrimmingPolicy", 1);

/*** [SECTION 1700]: CONTAINERS ***/
user_pref("_user.js.parrot", "1700 syntax error: the parrot's bit the dust!");
user_pref("privacy.userContext.enabled", true);
user_pref("privacy.userContext.ui.enabled", true);

/*** [SECTION 2000]: PLUGINS / MEDIA / WEBRTC ***/
user_pref("_user.js.parrot", "2000 syntax error: the parrot's snuffed it!");
user_pref("media.peerconnection.ice.proxy_only_if_behind_proxy", true);
user_pref("media.peerconnection.ice.default_address_only", true);

/*** [SECTION 2400]: DOM (DOCUMENT OBJECT MODEL) ***/
user_pref("_user.js.parrot", "2400 syntax error: the parrot's kicked the bucket!");
user_pref("dom.disable_window_move_resize", true);

/*** [SECTION 2600]: MISCELLANEOUS ***/
user_pref("_user.js.parrot", "2600 syntax error: the parrot's run down the curtain!");
user_pref("browser.download.start_downloads_in_tmp_dir", true); // [FF102+]
user_pref("browser.helperApps.deleteTempFileOnExit", true);
user_pref("browser.uitour.enabled", false);
user_pref("devtools.debugger.remote-enabled", false); // [DEFAULT: false]
user_pref("permissions.manager.defaultsUrl", "");
user_pref("webchannel.allowObject.urlWhitelist", "");
user_pref("network.IDN_show_punycode", true);
user_pref("pdfjs.disabled", false); // [DEFAULT: false]
user_pref("pdfjs.enableScripting", false); // [FF86+]
user_pref("browser.tabs.searchclipboardfor.middleclick", false); // [DEFAULT: false NON-LINUX]
user_pref("browser.contentanalysis.default_allow", false); // [FF124+] [DEFAULT: false]

/** DOWNLOADS ***/
user_pref("browser.download.useDownloadDir", false);
user_pref("browser.download.alwaysOpenPanel", false);
user_pref("browser.download.manager.addToRecentDocs", false);
user_pref("browser.download.always_ask_before_handling_new_types", true);

/** EXTENSIONS ***/
user_pref("extensions.enabledScopes", 5); // [HIDDEN PREF]
user_pref("extensions.postDownloadThirdPartyPrompt", false);

/*** [SECTION 2700]: ETP (ENHANCED TRACKING PROTECTION) ***/
user_pref("_user.js.parrot", "2700 syntax error: the parrot's joined the bleedin' choir invisible!");
user_pref("browser.contentblocking.category", "strict"); // [HIDDEN PREF]

/*** [SECTION 2800]: SHUTDOWN & SANITIZING ***/
user_pref("_user.js.parrot", "2800 syntax error: the parrot's bleedin' demised!");
user_pref("privacy.sanitize.sanitizeOnShutdown", true);
user_pref("privacy.clearOnShutdown.cache", true);     // [DEFAULT: true]
user_pref("privacy.clearOnShutdown_v2.cache", true);  // [FF128+] [DEFAULT: true]
user_pref("privacy.clearOnShutdown.downloads", true); // [DEFAULT: true]
user_pref("privacy.clearOnShutdown.formdata", true);  // [DEFAULT: true]
user_pref("privacy.clearOnShutdown.history", true);   // [DEFAULT: true]
user_pref("privacy.clearOnShutdown_v2.historyFormDataAndDownloads", true); // [FF128+] [DEFAULT: true]
user_pref("privacy.clearOnShutdown.cookies", true); // Cookies
user_pref("privacy.clearOnShutdown.offlineApps", true); // Site Data
user_pref("privacy.clearOnShutdown.sessions", true);  // Active Logins [DEFAULT: true]
user_pref("privacy.clearOnShutdown_v2.cookiesAndStorage", true); // Cookies, Site Data, Active Logins [FF128+]
user_pref("privacy.clearSiteData.cache", true);
user_pref("privacy.clearSiteData.cookiesAndStorage", false); // keep false until it respects "allow" site exceptions
user_pref("privacy.clearSiteData.historyFormDataAndDownloads", true);
user_pref("privacy.cpd.cache", true);    // [DEFAULT: true]
user_pref("privacy.clearHistory.cache", true);
user_pref("privacy.cpd.formdata", true); // [DEFAULT: true]
user_pref("privacy.cpd.history", true);  // [DEFAULT: true]
user_pref("privacy.clearHistory.historyFormDataAndDownloads", true);
user_pref("privacy.cpd.cookies", false);
user_pref("privacy.cpd.sessions", true); // [DEFAULT: true]
user_pref("privacy.cpd.offlineApps", false); // [DEFAULT: false]
user_pref("privacy.clearHistory.cookiesAndStorage", false);
user_pref("privacy.sanitize.timeSpan", 0);

/*** [SECTION 4000]: FPP (fingerprintingProtection) ***/
user_pref("_user.js.parrot", "4000 syntax error: the parrot's bereft of life!");
user_pref("_user.js.parrot", "4500 syntax error: the parrot's popped 'is clogs");
user_pref("privacy.resistFingerprinting", true); // [FF41+]
user_pref("privacy.window.maxInnerWidth", 1600);
user_pref("privacy.window.maxInnerHeight", 900);
user_pref("privacy.resistFingerprinting.block_mozAddonManager", true);
user_pref("privacy.resistFingerprinting.letterboxing", true); // [HIDDEN PREF]
user_pref("privacy.spoof_english", 1);
user_pref("browser.display.use_system_colors", false); // [DEFAULT: false NON-WINDOWS]
user_pref("widget.non-native-theme.enabled", true); // [DEFAULT: true]
user_pref("browser.link.open_newwindow", 3); // [DEFAULT: 3]
user_pref("browser.link.open_newwindow.restriction", 0);
user_pref("webgl.disabled", true);

/*** [SECTION 5000]: OPTIONAL OPSEC ***/
user_pref("_user.js.parrot", "5000 syntax error: the parrot's taken 'is last bow");

/*** [SECTION 5500]: OPTIONAL HARDENING ***/
user_pref("_user.js.parrot", "5500 syntax error: this is an ex-parrot!");

/*** [SECTION 6000]: DON'T TOUCH ***/
user_pref("_user.js.parrot", "6000 syntax error: the parrot's 'istory!");
user_pref("extensions.blocklist.enabled", true); // [DEFAULT: true]
user_pref("network.http.referer.spoofSource", false); // [DEFAULT: false]
user_pref("security.dialog_enable_delay", 1000); // [DEFAULT: 1000]
user_pref("privacy.firstparty.isolate", false); // [DEFAULT: false]
user_pref("extensions.webcompat.enable_shims", true); // [HIDDEN PREF] [DEFAULT: true]
user_pref("security.tls.version.enable-deprecated", false); // [DEFAULT: false]
user_pref("extensions.webcompat-reporter.enabled", false); // [DEFAULT: false]
user_pref("extensions.quarantinedDomains.enabled", true); // [DEFAULT: true]

/*** [SECTION 7000]: DON'T BOTHER ***/
user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies!");

/*** [SECTION 8000]: DON'T BOTHER: FINGERPRINTING ***/
user_pref("_user.js.parrot", "8000 syntax error: the parrot's crossed the Jordan");

/*** [SECTION 9000]: NON-PROJECT RELATED ***/
user_pref("_user.js.parrot", "9000 syntax error: the parrot's cashed in 'is chips!");
user_pref("browser.startup.homepage_override.mstone", "ignore"); // [HIDDEN PREF]
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.urlbar.showSearchTerms.enabled", false);

/*** [SECTION 9999]: DEPRECATED / RENAMED ***/
user_pref("_user.js.parrot", "9999 syntax error: the parrot's shuffled off 'is mortal coil!");

/* END: internal custom pref to test for syntax errors ***/
user_pref("_user.js.parrot", "SUCCESS: No no he's not dead, he's, he's restin'!");

/*** Custom prefs ***/ 
user_pref("privacy.resistFingerprinting.letterboxing", false); // [HIDDEN PREF]
user_pref("webgl.disabled", false);
user_pref("browser.startup.page", 3); // 0102
user_pref("privacy.clearOnShutdown.history", false); // 2811 FF127 or lower
user_pref("privacy.clearOnShutdown_v2.historyFormDataAndDownloads", false); // 2811 FF128+
user_pref("privacy.clearOnShutdown_v2.cookiesAndStorage", false); // Cookies, Site Data, Active Logins [FF128+]
user_pref("privacy.clearOnShutdown.cookies", false); // Cookies
user_pref("privacy.resistFingerprinting", false); // [FF41+]