// ~/.{librewolf,var/app/io.gitlab.librewolf-community/.librewolf}/librewolf.overrides.cfg // The first line of this file is supposed to be empty. // This was originally a LibreWolf overrides config beginning with samples from // https://librewolf.net/docs/settings/ // later eating https://aminda.eu/browser-extensions#firefox-aboutconfig // and finally becoming Firefox autoconfig file copied from // https://codeberg.org/librewolf/settings/src/branch/master/librewolf.cfg // Firefox autoconfig pref("autoadmin.global_config_url","https://gitea.blesmrt.net/mikaela/shell-things/raw/branch/master/conf/librewolf.overrides.cfg"); pref("general.config.obscure_value", 0); pref("autoadmin.refresh_interval", 120); pref("autoadmin.offline_failover", true); pref("autoadmin.failover_to_cached", true); // via https://www.ghacks.net/2017/10/27/how-to-enable-firefox-webextensions-on-mozilla-websites/ pref("extensions.webextensions.restrictedDomains", ""); //pref("privacy.resistFingerprinting.block_mozAddonManage", true); // Block cookie banners. Warning: may result to auto-accepting cookies. // https://www.ghacks.net/2022/12/24/configure-firefox-to-reject-cookie-banners-automatically/ pref("cookiebanners.service.mode", 2); pref("cookiebanners.service.mode.privateBrowsing", 2); pref("cookiebanners.bannerClicking.enabled", true); // https://globalprivacycontrol.org/ the successor of DNT pref("privacy.globalprivacycontrol.enabled", true); pref("privacy.globalprivacycontrol.functionality.enabled", true); pref("privacy.donottrackheader.enabled", true); pref("privacy.donottrackheader.value", 1); // Conflicts with fingerprintingProtection pref("privacy.resistFingerprinting", false); pref("privacy.resistFingerprinting.pbmode", false); // Enable letterboxing pref("privacy.resistFingerprinting.letterboxing", true); // Timezone spoofing. I cannot handle it with many pages. //pref("privacy.resistFingerprinting.spoofTimezone", false); // Fingerprinting protection and what to not protect. Via https://superuser.com/questions/1610744/how-do-i-get-around-resistfingerprinting-setting-my-preferred-firefox-theme-to-l/1815927#1815927 pref("privacy.fingerprintingProtection", true); pref("privacy.fingerprintingProtection.pbmode", true); // Use all protections, except make compromises for accessibility and // usability. https://searchfox.org/mozilla-central/source/toolkit/components/resistfingerprinting/RFPTargets.inc pref("privacy.fingerprintingProtection.overrides", "+AllTargets,-KeyboardEvents,-SpeechSynthesis,-CSSPrefersColorScheme,-CSSPrefersReducedMotion,-JSDateTimeUTC"); // :( but fingerprintability pref("javascript.use_us_english_locale", true); // This is the privacy.resistfingerprinting value and probably most common //pref("intl.accept_languages", "en-US, en"); // Then again I already lost the fingerprintability game. The default on // Firefox Android for me is `fi-FI,en-FI` which looks like even more losing // the fingerprinting game. //pref("intl.accept_languages", "fi, en"); // Apparently even not sending accept-language is more common than Finnish, // so let's do that. Any language is fine, at least I am not promoting English // to every web site I visit. pref("intl.accept_languages", ""); // No JavaScript allowed in internal pdf viewer pref("pdfjs.enableScripting", false); // Dark mode pref("ui.systemUsesDarkTheme", 1); pref("prefers-color-scheme", "dark"); pref("pdfjs.viewerCssTheme", 2); // Enable Firefox accounts pref("identity.fxaccounts.enabled", true); // Settings on what to clear on quit // - Goal: let Element Web & co stay logged in pref("privacy.clearOnShutdown.cache", false); pref("privacy.clearOnShutdown.cookies", false); pref("privacy.clearOnShutdown.history", false); pref("privacy.clearOnShutdown.offlineApps", false); pref("privacy.clearOnShutdown.openWindows", false); pref("privacy.clearOnShutdown.sessions", false); pref("privacy.clearOnShutdown.siteSettings", false); // Don't resume from crash (SSD) pref("browser.sessionstore.resume_from_crash", false); // Click to play. https://wiki.mozilla.org/Media/block-autoplay pref("media.autoplay.blocking_policy", 2); // No corporate CA MITM deafultPref("security.certerrors.mitm.auto_enable_enterprise_roots", false); // Decrease animations pref("image.animation_mode", "once"); // Punycode pref("network.IDN_show_punycode", true); // Enforce reader mode enabling? pref("reader.parse-on-load.force-enabled", true); // TRR & ECH // Mode 2 allows fallback to system resolver, 3 is TTR-only //pref("network.trr.mode", 2); pref("network.trr.mode", 3); pref("network.trr.early-AAAA", true); pref("network.trr.uri", "https://dns0.eu"); //pref("network.trr.uri", "https://dns.adguard-dns.com/dns-query"); // NOTE: ECH requires TRR, so mode 2 may not use it. pref("network.trr.disable-ECS", false); pref("network.dns.echconfig.enabled", true); pref("network.dns.use_https_rr_as_altsvc", true); pref("network.trr.exclude-etc-hosts", false); pref("network.trr.excluded-domains", "http.badssl.com,norwegianwifi.com,mywifiext.net,tplinkrepeater.net,router.asus.com",); // Default UI scale pref("layout.css.devPixelsPerPx", "1.5"); // Keep cache on both disk & memory. This is required for // https://github.com/JimmXinu/FanFicFare/wiki/BrowserCacheFeature pref("browser.cache.disk.enable", true); pref("browser.cache.memory.enable", true); // Start from homepage, don't restore the previous session (excluding pinned tabs)' pref("browser.startup.page", 1); // Simplified DDG experience without prompts for extension and all pref("browser.startup.homepage", "https://start.duckduckgo.com"); // https://codeberg.org/librewolf/settings/src/branch/master/librewolf.cfg begins pref("browser.contentblocking.category", "strict"); pref("privacy.partition.always_partition_third_party_non_cookie_storage", true); pref("privacy.partition.always_partition_third_party_non_cookie_storage.exempt_sessionstorage", false); /** prevent media cache from being written to disk in pb, but increase max cache size to avoid playback issues */ pref("browser.privatebrowsing.forceMediaMemoryCache", true); pref("media.memory_cache_max_size", 65536); pref("browser.shell.shortcutFavicons", false); // disable favicons in profile folder pref("browser.helperApps.deleteTempFileOnExit", true); // delete temporary files opened with external apps /** [SECTION] LOGGING * these prefs are off by default in the official Mozilla builds, * so it only makes sense that we also disable them. * See https://gitlab.com/librewolf-community/settings/-/issues/240 */ pref("browser.dom.window.dump.enabled", false); pref("devtools.console.stdout.chrome", false); pref("dom.security.https_only_mode", true); // only allow https in all windows, including private browsing pref("network.auth.subresource-http-auth-allow", 1); // block HTTP authentication credential dialogs /** [SECTION] REFERERS * to enhance privacy but keep a certain level of usability we trim cross-origin * referers to only send scheme, host and port, instead of completely avoid sending them. * as a general rule, the behavior of referes which are not cross-origin should not * be changed. */ pref("network.http.referer.XOriginTrimmingPolicy", 2); /** [SECTION] WEBRTC * there is no point in disabling webrtc as mDNS protects the private IP on linux, osx and win10+. * the private IP address is only used in trusted environments, eg. allowed camera and mic access. */ pref("media.peerconnection.ice.default_address_only", true); // use a single interface for ICE candidates, the vpn one when a vpn is used /** [SECTION] PROXY */ pref("network.gio.supported-protocols", ""); // disable gio as it could bypass proxy pref("network.file.disable_unc_paths", true); // hidden, disable using uniform naming convention to prevent proxy bypass pref("network.proxy.socks_remote_dns", true); // forces dns query through the proxy when using one pref("media.peerconnection.ice.proxy_only_if_behind_proxy", true); // force webrtc inside proxy when one is used /** [SECTION] DNS */ pref("network.dns.disablePrefetch", true); // disable dns prefetching pref("network.dns.skipTRR-when-parental-control-enabled", false); // Arkenfox user.js v117 /** [SECTION] PREFETCHING AND SPECULATIVE CONNECTIONS * disable prefecthing for different things such as links, bookmarks and predictions. */ pref("network.predictor.enabled", false); pref("network.prefetch-next", false); pref("network.http.speculative-parallel-limit", 0); pref("browser.places.speculativeConnect.enabled", false); // disable speculative connections and domain guessing from the urlbar pref("browser.urlbar.speculativeConnect.enabled", false); // RFP + DarkReader? -Aminda pref("browser.display.use_system_colors", false); // default, except Win // RFP I configured by myself before and window size won't affect me due to Sway // and I manually enabled letterboxing above. -Aminda // I am trusting PrivacyBadger and NoScript. -Aminda pref("webgl.disabled", false); /** [SECTION] CERTIFICATES */ pref("security.cert_pinning.enforcement_level", 2); // enable strict public key pinning, might cause issues with AVs /** * enable safe negotiation and show warning when it is not supported. might cause breakage * if the the server does not support RFC 5746, in tha case SSL_ERROR_UNSAFE_NEGOTIATION * will be shown. */ pref("security.ssl.require_safe_negotiation", true); pref("security.ssl.treat_unsafe_negotiation_as_broken", true); /** * our strategy with revocation is to perform all possible checks with CRL, but when a cert * cannot be checked with it we use OCSP stapled with hard-fail, to still keep privacy and * increase security. * crlite is in mode 3 by default, which allows us to detect false positive with OCSP. * in v103, when crlite is fully mature, it will switch to mode 2 and no longer double-check. */ pref("security.remote_settings.crlite_filters.enabled", true); pref("security.OCSP.require", true); // set to hard-fail, might cause SEC_ERROR_OCSP_SERVER_ERROR /** [SECTION] TLS/SSL */ pref("security.tls.enable_0rtt_data", false); // disable 0 RTT to improve tls 1.3 security pref("security.tls.version.enable-deprecated", false); // make TLS downgrades session only by enforcing it with pref(), default pref("browser.xul.error_pages.expert_bad_cert", true); // show relevant and advanced issues on warnings and error screens /** [SECTION] PERMISSIONS */ pref("permissions.delegation.enabled", false); // force permission request to show real origin pref("permissions.manager.defaultsUrl", ""); // revoke special permissions for some mozilla domains // Aminda stripped safebrowsing here as even in LibreWolf filtering DNS is used + the extensions. pref("geo.provider.network.url", "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%"); // Although I doubt they will improve accuracy, why not? pref("geo.provider.use_gpsd", true); // [LINUX] pref("geo.provider.use_geoclue", true); // [LINUX] // disable region specific updates from mozilla pref("browser.region.network.url", ""); pref("browser.region.update.enabled", false); /** [SECTION] SEARCH AND URLBAR * disable search suggestion and do not update opensearch engines. */ pref("browser.urlbar.suggest.searches", false); pref("browser.search.suggest.enabled", false); pref("browser.search.update", false); pref("browser.search.separatePrivateDefault", true); // [FF70+] // Arkenfox user.js v119 pref("browser.search.separatePrivateDefault.ui.enabled", true); // [FF71+] // Arkenfox user.js v119 pref("browser.urlbar.suggest.mdn", true); pref("browser.urlbar.addons.featureGate", false); pref("browser.urlbar.mdn.featureGate", false); pref("browser.urlbar.pocket.featureGate", false); pref("browser.urlbar.trending.featureGate", false); pref("browser.urlbar.weather.featureGate", false); // these are from Arkenfox, I decided to put them here. pref("browser.download.start_downloads_in_tmp_dir", true); // Arkenfox user.js v118 /** * the pref disables the whole feature and hide it from the ui * (as noted in https://bugzilla.mozilla.org/show_bug.cgi?id=1755057). * this also includes the best match feature, as it is part of firefox suggest. */ pref("browser.urlbar.quicksuggest.enabled", false); pref("browser.urlbar.suggest.weather", false); // disable weather suggestions in urlbar once they are no longer behind feature gate /** [SECTION] DOWNLOADS * user interaction should always be required for downloads, as a way to enhance security by asking * the user to specific a certain save location. */ pref("browser.download.useDownloadDir", false); pref("browser.download.autohideButton", false); // do not hide download button automatically pref("browser.download.manager.addToRecentDocs", false); // do not add downloads to recents pref("browser.download.alwaysOpenPanel", false); // do not expand toolbar menu for every download, we already have enough interaction /** [SECTION] AUTOPLAY * block autoplay unless element is right-clicked. this means background videos, videos in a different tab, * or media opened while other media is played will not start automatically. * thumbnails will not autoplay unless hovered. exceptions can be set from the UI. */ pref("media.autoplay.default", 5); /** [SECTION] POP-UPS AND WINDOWS * prevent scripts from resizing existing windows and opening new ones, by forcing them into * new tabs that can't be resized as well. */ pref("dom.disable_window_move_resize", true); pref("browser.link.open_newwindow", 3); pref("browser.link.open_newwindow.restriction", 0); /** [SECTION] MOUSE */ pref("browser.tabs.searchclipboardfor.middleclick", false); // prevent mouse middle click on new tab button to trigger searches or page loads /** [CATEGORY] EXTENSIONS */ /** [SECTION] USER INSTALLED * extensions are allowed to operate on restricted domains, while their scope * is set to profile+applications (https://mike.kaply.com/2012/02/21/understanding-add-on-scopes/). * an installation prompt should always be displayed. */ //pref("extensions.webextensions.restrictedDomains", ""); pref("extensions.enabledScopes", 5); // hidden pref("extensions.postDownloadThirdPartyPrompt", false); /** * the pref disables quarantined domains. * this is a security feature, we should remove it with v116 as there will be a UI to control this per-extension. * unless we patch remote settings we rely on static dumps. this means even if we did not flip this pref it would * not make a difference at the moment. */ pref("extensions.quarantinedDomains.enabled", false); /** [SECTION] SYSTEM * built-in extension are not allowed to auto-update. additionally the reporter extension * of webcompat is disabled. urls are stripped for defense in depth. */ // Aminda questions the security of not automatically updating built-in extensions. pref("extensions.systemAddon.update.enabled", true); //pref("extensions.systemAddon.update.url", ""); pref("extensions.webcompat-reporter.enabled", false); pref("extensions.webcompat-reporter.newIssueEndpoint", ""); /** [SECTION] LOCKWISE * disable the default password manager built into the browser, including its autofill * capabilities and formless login capture. */ pref("signon.rememberSignons", false); pref("signon.autofillForms", false); pref("extensions.formautofill.addresses.enabled", false); pref("extensions.formautofill.creditCards.enabled", false); pref("signon.formlessCapture.enabled", false); /** [SECTION] CONTAINERS * enable containers and show the settings to control them in the stock ui */ pref("privacy.userContext.enabled", true); pref("privacy.userContext.ui.enabled", true); /** [SECTION] DEVTOOLS * disable remote debugging. */ pref("devtools.debugger.remote-enabled", false); // default, but subject to branding so keep it pref("devtools.selfxss.count", 0); // required for devtools console to work // Aminda has no idea what is that. /** [SECTION] SHOPPING * disable the fakespot shopping sidebar */ pref("browser.shopping.experience2023.enabled", false); pref("browser.shopping.experience2023.optedIn", 2); pref("browser.shopping.experience2023.active", false); /** [SECTION] OTHERS */ pref("webchannel.allowObject.urlWhitelist", ""); // remove web channel whitelist pref("services.settings.server", "https://%.invalid") // set the remote settings URL (REMOTE_SETTINGS_SERVER_URL in the code) /** [SECTION] NEW TAB PAGE * we want NTP to display nothing but the search bar without anything distracting. * the three prefs below are just for minimalism and they should be easy to revert for users. */ pref("browser.newtabpage.activity-stream.section.highlights.includeDownloads", false); pref("browser.newtabpage.activity-stream.section.highlights.includeVisited", false); pref("browser.newtabpage.activity-stream.feeds.topsites", false); // hide stories and sponsored content from Firefox Home pref("browser.newtabpage.activity-stream.feeds.section.topstories", false); pref("browser.newtabpage.activity-stream.showSponsored", false); pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false); // disable telemetry in Firefox Home pref("browser.newtabpage.activity-stream.feeds.telemetry", false); pref("browser.newtabpage.activity-stream.telemetry", false); // hide stories UI in about:preferences#home, empty highlights list pref("browser.newtabpage.activity-stream.feeds.section.topstories.options", "{\"hidden\":true}"); pref("browser.newtabpage.activity-stream.default.sites", ""); /** [SECTION] ABOUT * remove annoying ui elements from the about pages, including about:protections */ pref("browser.contentblocking.report.lockwise.enabled", false); pref("browser.contentblocking.report.hide_vpn_banner", true); pref("browser.contentblocking.report.vpn.enabled", false); pref("browser.contentblocking.report.show_mobile_app", false); pref("browser.vpn_promo.enabled", false); pref("browser.promo.focus.enabled", false); // ...about:addons recommendations sections and more pref("extensions.htmlaboutaddons.recommendations.enabled", false); pref("extensions.getAddons.showPane", false); pref("lightweightThemes.getMoreURL", ""); // disable button to get more themes // ...about:preferences#home pref("browser.topsites.useRemoteSetting", false); // hide sponsored shortcuts button // ...and about:config pref("browser.aboutConfig.showWarning", false); // hide about:preferences#moreFromMozilla pref("browser.preferences.moreFromMozilla", false); /** [SECTION] RECOMMENDED * disable all "recommend as you browse" activity. */ pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features", false); pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons", false); // Maybe Windows specific, but looks useful. pref("network.protocol-handler.external.ms-windows-store", false); // prevent links from launching windows store pref("security.family_safety.mode", 2); // Remove pre-Win10-specific codepath // vim: filetype=javascript