mirror of
https://github.com/yokoffing/Betterfox.git
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HJ
80f744f08c
* add note to Fission * move disk cache * move media.memory_cache_max_size * add note * set browser.sessionstore.interval * clarify wording * Update Securefox.js * remove extensions.formautofill.heuristics.enabled extensions.formautofill.heuristics.enabled removed in v.114 * add fallback warning page * privacy.query_stripping.strip_on_share.enabled * re-enable default-browser-agent.enabled * change session save to 5min. * correct DoH default * make english sound natural * Update Securefox.js * HTTP Referrer Header * odoh * add early hints text * network.trr.strict_native_fallback * add note * formatting * Update Securefox.js * Update Securefox.js * remove privacy.resistFingerprinting.randomization.enabled * cleanup * cleanup * periods * Update Securefox.js * xOriginpolicy * move new tab preload * Update Securefox.js * add examples * xorigin description * add Brave search * bing login * comment out permissions.delegation.enabled * move SECTION: SPECULATIVE CONNECTIONS to Fastfox * re-enable permissions.delegation.enabled * adjust relax blocklist * Update Securefox.js * WFX changes * WFX changes * WFX changes * add default note * prune * re-enable signon.privateBrowsingCapture.enabled * add browser.tabs.searchclipboardfor.middleclick * syntax * MangaPill breakage * update note for mixedcontent passive * add allowlist * enable HTTPS Only in Private Browsing * add notes to referers * add ERROR codes * add comment
1272 lines
75 KiB
JavaScript
1272 lines
75 KiB
JavaScript
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/****************************************************************************
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* Securefox *
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* "Natura non contristatur" *
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* priority: provide sensible security and privacy *
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* version: 116 *
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* url: https://github.com/yokoffing/Betterfox *
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****************************************************************************/
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/****************************************************************************
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* SECTION: TRACKING PROTECTION *
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****************************************************************************/
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// PREF: Enhanced Tracking Protection (ETP)
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// Tracking Content blocking will strip cookies and block all resource requests to domains listed in Disconnect.me.
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// Firefox deletes all stored site data (incl. cookies, browser storage) if the site is a known tracker and hasn’t
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// been interacted with in the last 30 days.
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// [NOTE] FF86: "Strict" tracking protection enables dFPI.
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// [1] https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop
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// [2] https://www.reddit.com/r/firefox/comments/l7xetb/network_priority_for_firefoxs_enhanced_tracking/gle2mqn/?web2x&context=3
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//user_pref("privacy.trackingprotection.enabled", true); // enabled with "Strict"
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//user_pref("privacy.trackingprotection.pbmode.enabled", true); // DEFAULT
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//user_pref("browser.contentblocking.customBlockList.preferences.ui.enabled", false); // DEFAULT
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user_pref("browser.contentblocking.category", "strict");
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//user_pref("privacy.trackingprotection.socialtracking.enabled", true); // enabled with "Strict"
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//user_pref("privacy.socialtracking.block_cookies.enabled", true); // DEFAULT
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//user_pref("privacy.trackingprotection.cryptomining.enabled", true); // DEFAULT
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//user_pref("privacy.trackingprotection.fingerprinting.enabled", true); // DEFAULT
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//user_pref("privacy.trackingprotection.emailtracking.enabled", true); // enabled with "Strict"
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//user_pref("network.http.referer.disallowCrossSiteRelaxingDefault", true); // DEFAULT
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//user_pref("network.http.referer.disallowCrossSiteRelaxingDefault.pbmode", true); // DEFAULT
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//user_pref("network.http.referer.disallowCrossSiteRelaxingDefault.pbmode.top_navigation", true); // DEFAULT
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//user_pref("network.http.referer.disallowCrossSiteRelaxingDefault.top_navigation", true); // enabled with "Strict"
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// PREF: relax blocklist for ETP Strict
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// Using a less aggressive internal blocklist to mitigate site breakage.
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// This is easier than adjusting prefs for ETP Custom.
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// [NOTE] Sadly, this does not work on NIGHTLY; you must use Custom and adjust prefs individually.
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// [ALLOWLIST] https://disconnect.me/trackerprotection/unblocked
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//user_pref("browser.contentblocking.features.strict", "tp,tpPrivate,cookieBehavior5,cookieBehaviorPBM5,cm,fp,stp,emailTP,emailTPPrivate,lvl1,rp,rpTop,ocsp,qps,qpsPBM");
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// PREF: query stripping
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// Currently uses a small list [1]
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// We set the same query stripping list that Brave and LibreWolf uses [2]
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// If using uBlock Origin or AdGuard, use filter lists as well [3]
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// [1] https://www.eyerys.com/articles/news/how-mozilla-firefox-improves-privacy-using-query-parameter-stripping-feature
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// [2] https://github.com/brave/brave-core/blob/f337a47cf84211807035581a9f609853752a32fb/browser/net/brave_site_hacks_network_delegate_helper.cc
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// [3] https://github.com/yokoffing/filterlists#url-tracking-parameters
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//user_pref("privacy.query_stripping.enabled", true); // enabled with "Strict"
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//user_pref("privacy.query_stripping.enabled.pbmode", true); // enabled with "Strict"
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user_pref("privacy.query_stripping.strip_list", "__hsfp __hssc __hstc __s _hsenc _openstat dclid fbclid gbraid gclid hsCtaTracking igshid mc_eid ml_subscriber ml_subscriber_hash msclkid oft_c oft_ck oft_d oft_id oft_ids oft_k oft_lk oft_sk oly_anon_id oly_enc_id rb_clickid s_cid twclid vero_conv vero_id wbraid wickedid yclid");
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//user_pref("privacy.query_stripping.strip_on_share.enabled", true); // DEFAULT [FF115+]
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// PREF: allow embedded tweets, Instagram and Reddit posts, and TikTok embeds
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// [TEST - reddit embed] https://www.pcgamer.com/amazing-halo-infinite-bugs-are-already-rolling-in/
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// [TEST - instagram embed] https://www.ndtv.com/entertainment/bharti-singh-and-husband-haarsh-limbachiyaa-announce-pregnancy-see-trending-post-2646359
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// [TEST - tweet embed] https://www.newsweek.com/cryptic-tweet-britney-spears-shows-elton-john-collab-may-date-back-2015-1728036
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// [TEST - tiktok embed] https://www.vulture.com/article/snl-adds-four-new-cast-members-for-season-48.html
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// [1] https://www.reddit.com/r/firefox/comments/l79nxy/firefox_dev_is_ignoring_social_tracking_preference/gl84ukk
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// [2] https://www.reddit.com/r/firefox/comments/pvds9m/reddit_embeds_not_loading/
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user_pref("urlclassifier.trackingSkipURLs", "*.reddit.com, *.twitter.com, *.twimg.com, *.tiktok.com"); // MANUAL
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user_pref("urlclassifier.features.socialtracking.skipURLs", "*.instagram.com, *.twitter.com, *.twimg.com"); // MANUAL
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// PREF: lower the priority of network loads for resources on the tracking protection list [NIGHTLY]
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// [1] https://github.com/arkenfox/user.js/issues/102#issuecomment-298413904
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//user_pref("privacy.trackingprotection.lower_network_priority", true);
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// PREF: Site Isolation (sandboxing) [FF100+]
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// [ABOUT] View in about:processes.
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// Site Isolation (Fission) builds upon a new security architecture that extends current
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// protection mechanisms by separating web content and loading each site
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// in its own operating system process. This new security architecture allows
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// Firefox to completely separate code originating from different sites and, in turn,
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// defend against malicious sites trying to access sensitive information from other sites you are visiting.
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// [1] https://hacks.mozilla.org/2021/05/introducing-firefox-new-site-isolation-security-architecture/
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// [2] https://hacks.mozilla.org/2022/05/improved-process-isolation-in-firefox-100/
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// [3] https://hacks.mozilla.org/2021/12/webassembly-and-back-again-fine-grained-sandboxing-in-firefox-95/
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// [4] https://www.reddit.com/r/firefox/comments/r69j52/firefox_content_process_limit_is_gone/
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// [5] https://hg.mozilla.org/mozilla-central/file/tip/dom/ipc/ProcessIsolation.cpp#l53
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//user_pref("fission.autostart", true); // DEFAULT [DO NOT TOUCH]
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//user_pref("fission.webContentIsolationStrategy", 1); // DEFAULT
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// PREF: GPU sandboxing [FF110+] [WINDOWS]
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// [1] https://www.ghacks.net/2023/01/17/firefox-110-will-launch-with-gpu-sandboxing-on-windows/
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// [2] https://techdows.com/2023/02/disable-gpu-sandboxing-firefox.html
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// 0=disabled, 1=enabled (default)
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//user_pref("security.sandbox.gpu.level", 1); // DEFAULT WINDOWS
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// PREF: State Paritioning [aka Dynamic First-Party Isolation (dFPI)]
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// Firefox manages client-side state (i.e., data stored in the browser) to mitigate the ability of websites to abuse state
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// for cross-site tracking. This effort aims to achieve that by providing what is effectively a "different", isolated storage
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// location to every website a user visits.
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// dFPI is a more web-compatible version of FPI, which double keys all third-party state by the origin of the top-level
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// context. dFPI isolates user's browsing data for each top-level eTLD+1, but is flexible enough to apply web
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// compatibility heuristics to address resulting breakage by dynamically modifying a frame's storage principal.
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// dFPI isolates most sites while applying heuristics to allow sites through the isolation in certain circumstances for usability.
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// [NOTE] dFPI partitions all of the following caches by the top-level site being visited: HTTP cache, image cache,
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// favicon cache, HSTS cache, OCSP cache, style sheet cache, font cache, DNS cache, HTTP Authentication cache,
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// Alt-Svc cache, and TLS certificate cache.
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// [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1549587
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// [2] https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Privacy/State_Partitioning
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// [3] https://blog.mozilla.org/security/2021/02/23/total-cookie-protection/
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// [4] https://hacks.mozilla.org/2021/02/introducing-state-partitioning/
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// [5] https://github.com/arkenfox/user.js/issues/1281
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// [6] https://hacks.mozilla.org/2022/02/improving-the-storage-access-api-in-firefox/
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//user_pref("network.cookie.cookieBehavior", 5); // DEFAULT FF103+
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//user_pref("browser.contentblocking.reject-and-isolate-cookies.preferences.ui.enabled", true); // DEFAULT
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// PREF: Network Partitioning
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// Networking-related APIs are not intended to be used for websites to store data, but they can be abused for
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// cross-site tracking. Network APIs and caches are permanently partitioned by the top-level site.
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// Network Partitioning (isolation) will allow Firefox to associate resources on a per-website basis rather than together
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// in the same pool. This includes cache, favicons, CSS files, images, and even speculative connections.
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// [1] https://www.zdnet.com/article/firefox-to-ship-network-partitioning-as-a-new-anti-tracking-defense/
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// [2] https://developer.mozilla.org/en-US/docs/Web/Privacy/State_Partitioning#network_partitioning
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// [3] https://blog.mozilla.org/security/2021/01/26/supercookie-protections/
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//user_pref("privacy.partition.network_state", true); // DEFAULT
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//user_pref("privacy.partition.serviceWorkers", true); // [DEFAULT: true FF105+]
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//user_pref("privacy.partition.network_state.ocsp_cache", true); // enabled with "Strict"
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//user_pref("privacy.partition.bloburl_per_agent_cluster", true); [REGRESSIONS]
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// enable APS (Always Partitioning Storage) [FF104+]
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//user_pref("privacy.partition.always_partition_third_party_non_cookie_storage", true); // [DEFAULT: true FF109+]
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//user_pref("privacy.partition.always_partition_third_party_non_cookie_storage.exempt_sessionstorage", false); // [DEFAULT: false FF109+]
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// PREF: Smartblock
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// [1] https://support.mozilla.org/en-US/kb/smartblock-enhanced-tracking-protection
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// [2] https://www.youtube.com/watch?v=VE8SrClOTgw
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// [3] https://searchfox.org/mozilla-central/source/browser/extensions/webcompat/data/shims.js
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//user_pref("extensions.webcompat.enable_shims", true); // enabled with "Strict"
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// PREF: Redirect Tracking Prevention
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// All storage is cleared (more or less) daily from origins that are known trackers and that
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// haven’t received a top-level user interaction (including scroll) within the last 45 days.
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// [1] https://www.ghacks.net/2020/08/06/how-to-enable-redirect-tracking-in-firefox/
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// [2] https://www.cookiestatus.com/firefox/#other-first-party-storage
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// [3] https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Privacy/Redirect_tracking_protection
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// [4] https://www.ghacks.net/2020/03/04/firefox-75-will-purge-site-data-if-associated-with-tracking-cookies/
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// [5] https://github.com/arkenfox/user.js/issues/1089
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//user_pref("privacy.purge_trackers.enabled", true); // DEFAULT
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// PREF: SameSite Cookies
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// [1] https://hacks.mozilla.org/2020/08/changes-to-samesite-cookie-behavior/
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// [2] https://web.dev/samesite-cookies-explained/
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//user_pref("network.cookie.sameSite.laxByDefault", false); // DEFAULT
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//user_pref("network.cookie.sameSite.noneRequiresSecure", true); // DEFAULT
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//user_pref("network.cookie.sameSite.schemeful", false); // DEFAULT
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// PREF: Hyperlink Auditing (click tracking)
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//user_pref("browser.send_pings", false); // DEFAULT
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// PREF: Beacon API
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// Allows websites to asynchronously transmit small amounts of data to servers
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// without impacting page load performance. This allows things like activity tracking
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// to be done reliably in the background. Other tracking methods like form submissions
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// and XHR requests already allow similar capabilities but hurt performance.
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// Disabling the Beacon API wouldn't make the data unavailable - sites could still
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// collect it synchronously instead.
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// [NOTE] Disabling this API sometimes causes site breakage.
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// [TEST] https://vercel.com/
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// [1] https://developer.mozilla.org/docs/Web/API/Navigator/sendBeacon
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// [2] https://github.com/arkenfox/user.js/issues/1586
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//user_pref("beacon.enabled", false);
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// PREF: battery status tracking
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// [NOTE] Pref remains, but API is depreciated.
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// [1] https://developer.mozilla.org/en-US/docs/Web/API/Battery_Status_API#browser_compatibility
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//user_pref("dom.battery.enabled", false);
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// PREF: disable UITour backend
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// This way, there is no chance that a remote page can use it.
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user_pref("browser.uitour.enabled", false);
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//user_pref("browser.uitour.url", "");
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// PREF: disable remote debugging
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// [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/16222
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//user_pref("devtools.debugger.remote-enabled", false); // DEFAULT
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// PREF: enable Global Privacy Control (GPC) [NIGHTLY]
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// Honored by many highly ranked sites [2].
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// [TEST] https://global-privacy-control.glitch.me/
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// [1] https://globalprivacycontrol.org/press-release/20201007.html
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// [2] https://github.com/arkenfox/user.js/issues/1542#issuecomment-1279823954
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// [3] https://blog.mozilla.org/netpolicy/2021/10/28/implementing-global-privacy-control/
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// [4] https://help.duckduckgo.com/duckduckgo-help-pages/privacy/gpc/
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// [5] https://brave.com/web-standards-at-brave/4-global-privacy-control/
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// [6] https://www.eff.org/gpc-privacy-badger
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// [7] https://www.eff.org/issues/do-not-track
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user_pref("privacy.globalprivacycontrol.enabled", true);
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user_pref("privacy.globalprivacycontrol.functionality.enabled", true);
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/****************************************************************************
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* SECTION: OSCP & CERTS / HPKP (HTTP Public Key Pinning) *
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****************************************************************************/
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// Online Certificate Status Protocol (OCSP)
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// OCSP leaks your IP and domains you visit to the CA when OCSP Stapling is not available on visited host.
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// OCSP is vulnerable to replay attacks when nonce is not configured on the OCSP responder.
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// Short-lived certificates are not checked for revocation (security.pki.cert_short_lifetime_in_days, default:10).
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// Firefox falls back on plain OCSP when must-staple is not configured on the host certificate.
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// [1] https://scotthelme.co.uk/revocation-is-broken/
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// [2] https://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox/
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// [3] https://github.com/arkenfox/user.js/issues/1576#issuecomment-1304590235
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// PREF: disable OCSP fetching to confirm current validity of certificates
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// OCSP (non-stapled) leaks information about the sites you visit to the CA (cert authority).
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// It's a trade-off between security (checking) and privacy (leaking info to the CA).
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// Unlike Chrome, Firefox’s default settings also query OCSP responders to confirm the validity
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// of SSL/TLS certificates. However, because OCSP query failures are so common, Firefox
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// (like other browsers) implements a “soft-fail” policy.
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// [NOTE] This pref only controls OCSP fetching and does not affect OCSP stapling
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// [SETTING] Privacy & Security>Security>Certificates>Query OCSP responder servers...
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// [1] https://en.wikipedia.org/wiki/Ocsp
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// [2] https://www.ssl.com/blogs/how-do-browsers-handle-revoked-ssl-tls-certificates/#ftoc-heading-3
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// 0=disabled, 1=enabled (default), 2=enabled for EV certificates only
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user_pref("security.OCSP.enabled", 0);
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// PREF: set OCSP fetch failures to hard-fail
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// When a CA cannot be reached to validate a cert, Firefox just continues the connection (=soft-fail)
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// Setting this pref to true tells Firefox to instead terminate the connection (=hard-fail)
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// It is pointless to soft-fail when an OCSP fetch fails: you cannot confirm a cert is still valid (it
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// could have been revoked) and/or you could be under attack (e.g. malicious blocking of OCSP servers)
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// [WARNING] Expect breakage:
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// security.OCSP.require will make the connection fail when the OCSP responder is unavailable
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// security.OCSP.require is known to break browsing on some captive portals
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// [1] https://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox/
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// [2] https://www.imperialviolet.org/2014/04/19/revchecking.html
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// [3] https://www.ssl.com/blogs/how-do-browsers-handle-revoked-ssl-tls-certificates/#ftoc-heading-3
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//user_pref("security.OCSP.require", true);
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// PREF: enable CRLite
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// CRLite covers valid certs, and it doesn't fall back to OCSP in mode 2 [FF84+]
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// 0 = disabled
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// 1 = consult CRLite but only collect telemetry
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// 2 = consult CRLite and enforce both "Revoked" and "Not Revoked" results
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// 3 = consult CRLite and enforce "Not Revoked" results, but defer to OCSP for "Revoked" [FF99+, default FF100+]
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// [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1429800,1670985,1753071
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// [2] https://blog.mozilla.org/security/tag/crlite/
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user_pref("security.remote_settings.crlite_filters.enabled", true);
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user_pref("security.pki.crlite_mode", 2);
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// PREF: HTTP Public Key Pinning (HPKP)
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// If you rely on an antivirus to protect your web browsing
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// by inspecting ALL your web traffic, then leave at 1.
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// [ERROR] MOZILLA_PKIX_ERROR_KEY_PINNING_FAILURE
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// By default, pinning enforcement is not applied if a user-installed
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// certificate authority (CA) is present. However, this allows user-installed
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// CAs to override pins for any site, negating the security benefits of HPKP.
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// 0=disabled, 1=allow user MiTM (such as your antivirus) (default), 2=strict
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// [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/16206
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// [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1168603
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// [3] https://github.com/yokoffing/Betterfox/issues/53#issuecomment-1035554783
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user_pref("security.cert_pinning.enforcement_level", 2);
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// PREF: disable Enterprise Root Certificates of the operating system
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//user_pref("security.enterprise_roots.enabled", false); // DEFAULT
|
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//user_pref("security.certerrors.mitm.auto_enable_enterprise_roots", false);
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|
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/****************************************************************************
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* SECTION: SSL (Secure Sockets Layer) / TLS (Transport Layer Security) *
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****************************************************************************/
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// PREF: display warning on the padlock for "broken security"
|
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// Bug: warning padlock not indicated for subresources on a secure page! [2]
|
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// [1] https://wiki.mozilla.org/Security:Renegotiation
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// [2] https://bugzilla.mozilla.org/1353705
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user_pref("security.ssl.treat_unsafe_negotiation_as_broken", true);
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// PREF: require safe negotiation
|
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// [ERROR] SSL_ERROR_UNSAFE_NEGOTIATION
|
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// Blocks connections to servers that don't support RFC 5746 [2]
|
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// as they're potentially vulnerable to a MiTM attack [3].
|
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// A server without RFC 5746 can be safe from the attack if it
|
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// disables renegotiations but the problem is that the browser can't
|
||
// know that. Setting this pref to true is the only way for the
|
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// browser to ensure there will be no unsafe renegotiations on
|
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// the channel between the browser and the server.
|
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// [STATS] SSL Labs > Renegotiation Support (Feb 2023) reports over 99.3% of top sites have secure renegotiation [4].
|
||
// [1] https://wiki.mozilla.org/Security:Renegotiation
|
||
// [2] https://datatracker.ietf.org/doc/html/rfc5746
|
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// [3] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3555
|
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// [4] https://www.ssllabs.com/ssl-pulse/
|
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user_pref("security.ssl.require_safe_negotiation", true);
|
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|
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// PREF: display advanced information on Insecure Connection warning pages
|
||
// [TEST] https://expired.badssl.com/
|
||
user_pref("browser.xul.error_pages.expert_bad_cert", true);
|
||
|
||
// PREF: disable TLS 1.3 0-RTT (round-trip time) [FF51+]
|
||
// This data is not forward secret, as it is encrypted solely under keys derived using
|
||
// the offered PSK. There are no guarantees of non-replay between connections.
|
||
// [1] https://github.com/tlswg/tls13-spec/issues/1001
|
||
// [2] https://www.rfc-editor.org/rfc/rfc9001.html#name-replay-attacks-with-0-rtt
|
||
// [3] https://blog.cloudflare.com/tls-1-3-overview-and-q-and-a/
|
||
user_pref("security.tls.enable_0rtt_data", false); // disable 0 RTT to improve tls 1.3 security
|
||
|
||
/****************************************************************************
|
||
* SECTION: FONTS *
|
||
****************************************************************************/
|
||
|
||
// PREF: disable rendering of SVG OpenType fonts
|
||
// [1] https://github.com/arkenfox/user.js/issues/1529
|
||
//user_pref("gfx.font_rendering.opentype_svg.enabled", false);
|
||
|
||
// PREF: limit font visibility (Windows, Mac, some Linux) [FF94+]
|
||
// Uses hardcoded lists with two parts: kBaseFonts + kLangPackFonts [1], bundled fonts are auto-allowed
|
||
// In Normal windows: uses the first applicable: RFP (4506) over TP over Standard
|
||
// In Private Browsing windows: uses the most restrictive between normal and private
|
||
// 1=only base system fonts, 2=also fonts from optional language packs, 3=also user-installed fonts
|
||
// [1] https://searchfox.org/mozilla-central/search?path=StandardFonts*.inc
|
||
//user_pref("layout.css.font-visibility.resistFingerprinting", 1); // DEFAULT
|
||
//user_pref("layout.css.font-visibility.trackingprotection", 1); // Normal Browsing windows with tracking protection enabled
|
||
//user_pref("layout.css.font-visibility.private", 1); // Private Browsing windows
|
||
//user_pref("layout.css.font-visibility.standard", 1); // Normal Browsing windows with tracking protection disabled(?)
|
||
|
||
/****************************************************************************
|
||
* SECTION: FINGERPRINT PROTECTION (RFP) *
|
||
****************************************************************************/
|
||
|
||
// PREF: enable FingerPrint Protection (FPP) [WiP]
|
||
// [1] https://github.com/arkenfox/user.js/issues/1661
|
||
// [2] https://bugzilla.mozilla.org/show_bug.cgi?id=1816064
|
||
//user_pref("privacy.resistFingerprinting.randomization.daily_reset.enabled", true);
|
||
//user_pref("privacy.resistFingerprinting.randomization.daily_reset.private.enabled", true);
|
||
|
||
/****************************************************************************
|
||
* SECTION: RESIST FINGERPRINTING (RFP) *
|
||
****************************************************************************/
|
||
|
||
// PREF: enable advanced fingerprinting protection
|
||
// [WARNING] Leave disabled unless you're okay with all the drawbacks
|
||
// [1] https://librewolf.net/docs/faq/#what-are-the-most-common-downsides-of-rfp-resist-fingerprinting
|
||
// [2] https://www.reddit.com/r/firefox/comments/wuqpgi/comment/ile3whx/?context=3
|
||
//user_pref("privacy.resistFingerprinting", true);
|
||
|
||
// PREF: set new window size rounding max values [FF55+]
|
||
// [SETUP-CHROME] sizes round down in hundreds: width to 200s and height to 100s, to fit your screen
|
||
// [1] https://bugzilla.mozilla.org/1330882
|
||
//user_pref("privacy.window.maxInnerWidth", 1600);
|
||
//user_pref("privacy.window.maxInnerHeight", 900);
|
||
|
||
// PREF: disable showing about:blank as soon as possible during startup [FF60+]
|
||
// [1] https://github.com/arkenfox/user.js/issues/1618
|
||
// [2] https://bugzilla.mozilla.org/1448423
|
||
//user_pref("browser.startup.blankWindow", false);
|
||
|
||
// PREF: disable ICC color management
|
||
// Use a color calibrator for best results [WINDOWS]
|
||
// Also may help improve font rendering on WINDOWS
|
||
// [SETTING] General>Language and Appearance>Fonts and Colors>Colors>Use system colors
|
||
// default=false NON-WINDOWS
|
||
// [1] https://developer.mozilla.org/en-US/docs/Mozilla/Firefox/Releases/3.5/ICC_color_correction_in_Firefox
|
||
//user_pref("browser.display.use_system_colors", false);
|
||
|
||
// PREF: enforce non-native widget theme
|
||
// Security: removes/reduces system API calls, e.g. win32k API [1]
|
||
// Fingerprinting: provides a uniform look and feel across platforms [2]
|
||
// [1] https://bugzilla.mozilla.org/1381938
|
||
// [2] https://bugzilla.mozilla.org/1411425
|
||
//user_pref("widget.non-native-theme.enabled", true); // DEFAULT
|
||
|
||
/****************************************************************************
|
||
* SECTION: DISK AVOIDANCE *
|
||
****************************************************************************/
|
||
|
||
// PREF: prevent media cache from writing to disk in Private Browsing
|
||
// [NOTE] MSE (Media Source Extensions) are already stored in-memory in PB
|
||
user_pref("browser.privatebrowsing.forceMediaMemoryCache", true);
|
||
|
||
// PREF: set the minimum interval (in milliseconds) between session save operations,
|
||
// when crashing or restarting to install updates
|
||
// [NOTE] The value is how often FF checks for state changes.
|
||
// Data is only saved when state changes [2].
|
||
// [1] https://kb.mozillazine.org/Browser.sessionstore.interval
|
||
// [2] https://bugzilla.mozilla.org/1304389
|
||
user_pref("browser.sessionstore.interval", 60000); // 1 minute; default=15000 (15s)
|
||
|
||
// PREF: store extra session data when crashing or restarting to install updates
|
||
// Dictates whether sites may save extra session data such as form content,
|
||
// scrollbar positions, and POST data.
|
||
// 0=everywhere (default), 1=unencrypted sites, 2=nowhere
|
||
//user_pref("browser.sessionstore.privacy_level", 2);
|
||
|
||
// PREF: disable automatic Firefox start and session restore after reboot [WINDOWS]
|
||
// [1] https://bugzilla.mozilla.org/603903
|
||
//user_pref("toolkit.winRegisterApplicationRestart", false);
|
||
|
||
// PREF: disable fetching and permanently storing favicons for Windows .URL shortcuts created by drag and drop
|
||
// [NOTE] .URL shortcut files will be created with a generic icon.
|
||
// Favicons are stored as .ico files in $profile_dir\shortcutCache.
|
||
//user_pref("browser.shell.shortcutFavicons", false);
|
||
|
||
// PREF: remove temp files opened with an external application
|
||
// [1] https://bugzilla.mozilla.org/302433
|
||
//user_pref("browser.helperApps.deleteTempFileOnExit", true); // DEFAULT [FF108]
|
||
|
||
// PREF: disable page thumbnails capturing
|
||
// Page thumbnails are only used in chrome/privileged contexts.
|
||
//user_pref("browser.pagethumbnails.capturing_disabled", true); // [HIDDEN PREF]
|
||
|
||
/******************************************************************************
|
||
* SECTION: CLEARING DATA DEFAULTS *
|
||
******************************************************************************/
|
||
|
||
// PREF: reset default 'Time range to clear' for 'Clear Recent History'.
|
||
// Firefox remembers your last choice. This will reset the value when you start Firefox.
|
||
// 0=everything, 1=last hour, 2=last two hours, 3=last four hours,
|
||
// 4=today, 5=last five minutes, 6=last twenty-four hours
|
||
// The values 5 + 6 are not listed in the dropdown, which will display a
|
||
// blank value if they are used, but they do work as advertised.
|
||
//user_pref("privacy.sanitize.timeSpan", 0);
|
||
|
||
// PREF: reset default items to clear with Ctrl-Shift-Del
|
||
// This dialog can also be accessed from the menu History>Clear Recent History
|
||
// Firefox remembers your last choices. This will reset them when you start Firefox.
|
||
// Regardless of what you set privacy.cpd.downloads to, as soon as the dialog
|
||
// for "Clear Recent History" is opened, it is synced to the same as 'history'.
|
||
//user_pref("privacy.cpd.history", true); // Browsing & Download History [DEFAULT]
|
||
//user_pref("privacy.cpd.formdata", true); // Form & Search History [DEFAULT]
|
||
//user_pref("privacy.cpd.cache", true); // Cache [DEFAULT]
|
||
//user_pref("privacy.cpd.cookies", true); // Cookies [DEFAULT]
|
||
//user_pref("privacy.cpd.sessions", false); // Active Logins [DEFAULT]
|
||
//user_pref("privacy.cpd.offlineApps", false); // Offline Website Data [DEFAULT]
|
||
//user_pref("privacy.cpd.siteSettings", false); // Site Preferences [DEFAULT]
|
||
|
||
/******************************************************************************
|
||
* SECTION: SHUTDOWN & SANITIZING *
|
||
******************************************************************************/
|
||
|
||
// PREF: set History section to show all options
|
||
// Settings>Privacy>History>Use custom settings for history
|
||
// [INFOGRAPHIC] https://bugzilla.mozilla.org/show_bug.cgi?id=1765533#c1
|
||
user_pref("privacy.history.custom", true);
|
||
|
||
// PREF: clear browsing data on shutdown, while respecting site exceptions
|
||
// Set cookies, site data, cache, etc. to clear on shutdown.
|
||
// [SETTING] Privacy & Security>History>Custom Settings>Clear history when Firefox closes>Settings
|
||
// [NOTE] "sessions": Active Logins: refers to HTTP Basic Authentication [1], not logins via cookies
|
||
// [NOTE] "offlineApps": Offline Website Data: localStorage, service worker cache, QuotaManager (IndexedDB, asm-cache)
|
||
// Clearing "offlineApps" may affect login items after browser restart [2].
|
||
// [1] https://en.wikipedia.org/wiki/Basic_access_authentication
|
||
// [2] https://github.com/arkenfox/user.js/issues/1291
|
||
//user_pref("privacy.sanitize.sanitizeOnShutdown", true);
|
||
|
||
// Uncomment individual prefs to disable clearing on shutdown:
|
||
// [NOTE] If "history" is true, downloads will also be cleared.
|
||
// [NOTE] Even if "downloads" pref is enabled, downloads won't be cleared unless "history" is set to true!
|
||
//user_pref("privacy.clearOnShutdown.history", true); // [DEFAULT]
|
||
//user_pref("privacy.clearOnShutdown.downloads", true);
|
||
//user_pref("privacy.clearOnShutdown.formdata", true); // [DEFAULT]
|
||
//user_pref("privacy.clearOnShutdown.sessions", true); // [DEFAULT]
|
||
//user_pref("privacy.clearOnShutdown.offlineApps", true);
|
||
//user_pref("privacy.clearOnShutdown.siteSettings", false); // [DEFAULT]
|
||
|
||
// PREF: configure site exceptions
|
||
// [NOTE] Currently, there is no way to add sites via about:config
|
||
// [SETTING] to manage site exceptions: Options>Privacy & Security>Cookies & Site Data>Manage Exceptions
|
||
// or when on the website in question: Ctrl+I>Permissions>Cookies>Allow
|
||
// For cross-domain logins, add exceptions for both sites:
|
||
// e.g. https://www.youtube.com (site) + https://accounts.google.com (single sign on)
|
||
// [WARNING] Be selective with what cookies you keep, as they also disable partitioning [1]
|
||
// [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1767271
|
||
|
||
/******************************************************************************
|
||
* SECTION: SEARCH / URL BAR *
|
||
******************************************************************************/
|
||
|
||
// PREF: trim certain parts of the URL
|
||
// Makes the domain name more prominent by graying out other parts of the URL.
|
||
// [1] https://udn.realityripple.com/docs/Mozilla/Preferences/Preference_reference/browser.urlbar.trimURLs
|
||
// [2] https://winaero.com/firefox-75-strips-https-and-www-from-address-bar-results/
|
||
//user_pref("browser.urlbar.trimURLs", true); // DEFAULT
|
||
|
||
// PREF: do not show search terms in URL bar [FF110+] [FF113+]
|
||
// Show search query instead of URL on search results pages.
|
||
// [SETTING] Search>Search Bar>Use the address bar for search and navigation>Show search terms instead of URL...
|
||
//user_pref("browser.urlbar.showSearchTerms.enabled", false);
|
||
|
||
// PREF: enable seperate search engine for Private Windows
|
||
// [SETTINGS] Preferences>Search>Default Search Engine>"Use this search engine in Private Windows"
|
||
user_pref("browser.search.separatePrivateDefault.ui.enabled", true);
|
||
// [SETTINGS] "Choose a different default search engine for Private Windows only"
|
||
//user_pref("browser.search.separatePrivateDefault", true); // DEFAULT
|
||
// enable prompt for searching in a Private Window when using normal browsing window URL bar
|
||
// [1] https://www.reddit.com/r/firefox/comments/yg8jyh/different_private_search_option_gone_firefox_106/
|
||
//user_pref("browser.search.separatePrivateDefault.urlbarResult.enabled", true); // HIDDEN
|
||
|
||
// PREF: enable option to add custom search engine
|
||
// [SETTINGS] Settings -> Search -> Search Shortcuts -> Add
|
||
// [EXAMPLE] https://search.brave.com/search?q=%s
|
||
// [EXAMPLE] https://lite.duckduckgo.com/lite/?q=%s
|
||
// [1] https://reddit.com/r/firefox/comments/xkzswb/adding_firefox_search_engine_manually/
|
||
user_pref("browser.urlbar.update2.engineAliasRefresh", true); // HIDDEN
|
||
|
||
// PREF: disable live search engine suggestions (Google, Bing, etc.)
|
||
// [WARNING] Search engines keylog every character you type from the URL bar.
|
||
user_pref("browser.search.suggest.enabled", false);
|
||
//user_pref("browser.search.suggest.enabled.private", false); // DEFAULT
|
||
|
||
// PREF: disable location bar leaking single words to a DNS provider after searching
|
||
// 0=never resolve single words, 1=heuristic (default), 2=always resolve
|
||
// [1] https://bugzilla.mozilla.org/1642623
|
||
//user_pref("browser.urlbar.dnsResolveSingleWordsAfterSearch", 0); // DEFAULT FF104+
|
||
|
||
// PREF: disable Firefox Suggest
|
||
// [1] https://github.com/arkenfox/user.js/issues/1257
|
||
//user_pref("browser.urlbar.quicksuggest.enabled", false); // controls whether the UI is shown
|
||
user_pref("browser.urlbar.suggest.quicksuggest.sponsored", false);
|
||
user_pref("browser.urlbar.suggest.quicksuggest.nonsponsored", false);
|
||
// hide Firefox Suggest label in URL dropdown box
|
||
//user_pref("browser.urlbar.groupLabels.enabled", false);
|
||
|
||
// PREF: disable search and form history
|
||
// Be aware that autocomplete form data can be read by third parties [1][2].
|
||
// Form data can easily be stolen by third parties.
|
||
// [SETTING] Privacy & Security>History>Custom Settings>Remember search and form history
|
||
// [1] https://blog.mindedsecurity.com/2011/10/autocompleteagain.html
|
||
// [2] https://bugzilla.mozilla.org/381681
|
||
user_pref("browser.formfill.enable", false);
|
||
|
||
// PREF: URL bar domain guessing
|
||
// Domain guessing intercepts DNS "hostname not found errors" and resends a
|
||
// request (e.g. by adding www or .com). This is inconsistent use (e.g. FQDNs), does not work
|
||
// via Proxy Servers (different error), is a flawed use of DNS (TLDs: why treat .com
|
||
// as the 411 for DNS errors?), privacy issues (why connect to sites you didn't
|
||
// intend to), can leak sensitive data (e.g. query strings: e.g. Princeton attack),
|
||
// and is a security risk (e.g. common typos & malicious sites set up to exploit this).
|
||
//user_pref("browser.fixup.alternate.enabled", false); // [DEFAULT FF104+]
|
||
|
||
// PREF: display "Not Secure" text on HTTP sites
|
||
// Needed with HTTPS-First Policy; not needed with HTTPS-Only Mode.
|
||
user_pref("security.insecure_connection_text.enabled", true);
|
||
user_pref("security.insecure_connection_text.pbmode.enabled", true);
|
||
//user_pref("security.insecure_connection_icon.enabled", true); // DEFAULT
|
||
//user_pref("security.insecure_connection_icon.pbmode.enabled", true); // DEFAULT
|
||
|
||
// PREF: Disable location bar autofill
|
||
// https://support.mozilla.org/en-US/kb/address-bar-autocomplete-firefox#w_url-autocomplete
|
||
//user_pref("browser.urlbar.autoFill", false);
|
||
|
||
// PREF: Enforce Punycode for Internationalized Domain Names to eliminate possible spoofing
|
||
// Firefox has some protections, but it is better to be safe than sorry.
|
||
// [!] Might be undesirable for non-latin alphabet users since legitimate IDN's are also punycoded.
|
||
// [TEST] https://www.xn--80ak6aa92e.com/ (www.apple.com)
|
||
// [1] https://wiki.mozilla.org/IDN_Display_Algorithm
|
||
// [2] https://en.wikipedia.org/wiki/IDN_homograph_attack
|
||
// [3] CVE-2017-5383: https://www.mozilla.org/security/advisories/mfsa2017-02/
|
||
// [4] https://www.xudongz.com/blog/2017/idn-phishing/
|
||
user_pref("network.IDN_show_punycode", true);
|
||
|
||
/******************************************************************************
|
||
* SECTION: HTTPS-FIRST POLICY *
|
||
******************************************************************************/
|
||
|
||
// PREF: HTTPS-First Policy
|
||
// Firefox attempts to make all connections to websites secure, and falls back to insecure
|
||
// connections only when a website does not support it. Unlike HTTPS-Only Mode, Firefox
|
||
// will NOT ask for your permission before connecting to a website that doesn’t support secure connections.
|
||
// [NOTE] HTTPS-Only Mode needs to be disabled for HTTPS First to work.
|
||
// [TEST] http://example.com [upgrade]
|
||
// [TEST] http://httpforever.com/ [no upgrade]
|
||
// [1] https://blog.mozilla.org/security/2021/08/10/firefox-91-introduces-https-by-default-in-private-browsing/
|
||
// [2] https://brave.com/privacy-updates/22-https-by-default/
|
||
// [3] https://github.com/brave/adblock-lists/blob/master/brave-lists/https-upgrade-exceptions-list.txt
|
||
// [4] https://web.dev/why-https-matters/
|
||
// [5] https://www.cloudflare.com/learning/ssl/why-use-https/
|
||
user_pref("dom.security.https_first", true);
|
||
//user_pref("dom.security.https_first_pbm", true); // DEFAULT
|
||
|
||
/******************************************************************************
|
||
* SECTION: HTTPS-ONLY MODE *
|
||
******************************************************************************/
|
||
|
||
// Firefox displays a warning page if HTTPS is not supported by a server. Options to use HTTP are then provided.
|
||
// [NOTE] When "https_only_mode" (all windows) is true, "https_only_mode_pbm" (private windows only) is ignored.
|
||
// [SETTING] to add site exceptions: Padlock>HTTPS-Only mode>On/Off/Off temporarily
|
||
// [SETTING] Privacy & Security>HTTPS-Only Mode
|
||
// [TEST] http://example.com [upgrade]
|
||
// [TEST] http://httpforever.com/ [no upgrade]
|
||
// [TEST] http://speedofanimals.com [no upgrade]
|
||
// [1] https://bugzilla.mozilla.org/1613063
|
||
// [2] https://blog.mozilla.org/security/2020/11/17/firefox-83-introduces-https-only-mode/
|
||
// [3] https://web.dev/why-https-matters/
|
||
// [4] https://www.cloudflare.com/learning/ssl/why-use-https/
|
||
|
||
// PREF: enable HTTPS-only Mode
|
||
//user_pref("dom.security.https_only_mode_pbm", true); // Private Browsing windows only
|
||
//user_pref("dom.security.https_only_mode", true); // Normal + Private Browsing windows
|
||
|
||
// PREF: offer suggestion for HTTPS site when available
|
||
// [1] https://twitter.com/leli_gibts_scho/status/1371458534186057731
|
||
user_pref("dom.security.https_only_mode_error_page_user_suggestions", true);
|
||
|
||
// PREF: HTTP background requests in HTTPS-only Mode
|
||
// When attempting to upgrade, if the server doesn't respond within 3 seconds[=default time],
|
||
// Firefox sends HTTP requests in order to check if the server supports HTTPS or not.
|
||
// This is done to avoid waiting for a timeout which takes 90 seconds.
|
||
// Firefox only sends top level domain when falling back to http.
|
||
// [WARNING] Disabling causes long timeouts when no path to HTTPS is present.
|
||
// [NOTE] Use "Manage Exceptions" for sites known for no HTTPS.
|
||
// [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1642387,1660945
|
||
// [2] https://blog.mozilla.org/attack-and-defense/2021/03/10/insights-into-https-only-mode/
|
||
//user_pref("dom.security.https_only_mode_send_http_background_request", true); // DEFAULT
|
||
//user_pref("dom.security.https_only_fire_http_request_background_timer_ms", 3000); // DEFAULT
|
||
|
||
// PREF: disable HTTPS-Only mode for local resources
|
||
//user_pref("dom.security.https_only_mode.upgrade_local", false); // DEFAULT
|
||
|
||
/******************************************************************************
|
||
* SECTION: DNS-over-HTTPS *
|
||
******************************************************************************/
|
||
|
||
// PREF: DNS-over-HTTPS (DoH) mode
|
||
// Mozilla uses Cloudfare by default. NextDNS is also an option.
|
||
// [NOTE] You can set this to 0 if you are already using secure DNS for your entire network (e.g. OS-level, router-level).
|
||
// [1] https://hacks.mozilla.org/2018/05/a-cartoon-intro-to-dns-over-https/
|
||
// [2] https://www.internetsociety.org/blog/2018/12/dns-privacy-support-in-mozilla-firefox/
|
||
// 0=Disable DoH (default)
|
||
// 2=Use DoH; fall back to traditional DNS if necessary
|
||
// 3=Only use DoH; do not fall back to traditional DNS
|
||
// 5=Explicitly disable DoH
|
||
//user_pref("network.trr.mode", 0); // DEFAULT
|
||
|
||
// PREF: DoH fallback warning page
|
||
// Whether DoH fallback warning page will be displayed when DoH doesn't work in TRR first mode.
|
||
//user_pref("network.trr.display_fallback_warning", false); // DEFAULT;
|
||
// Show the checkbox to enable the fallback warning page in the settings UI
|
||
//user_pref("network.trr_ui.show_fallback_warning_option", false); // DEFAULT; show the checkbox to enable the fallback warning page in the settings UI
|
||
|
||
// PREF: enable fallback to native DNS upon network errors
|
||
//user_pref("network.trr.strict_native_fallback", false); // DEFAULT
|
||
|
||
// PREF: DoH resolver
|
||
// [1] https://github.com/uBlockOrigin/uBlock-issues/issues/1710
|
||
//user_pref("network.trr.uri", "https://xxxx/dns-query");
|
||
//user_pref("network.trr.custom_uri", "https://xxxx/dns-query");
|
||
|
||
// PREF: EDNS Client Subnet DNS extension (DNSSEC validation)
|
||
// When set to false, TRR asks the resolver to enable EDNS Client Subnet (ECS).
|
||
// [WARNING] Some websites won't resolve when enabled, usually due to
|
||
// misconfiguration on the part of the domain owner.
|
||
// [NOTE] DNSSEC is not needed if you’re using DoH, as long as you trust the
|
||
// DoH resolver to perform DNSSEC validation correctly. However, if you don’t
|
||
// trust the DoH resolver, you may still want to use DNSSEC along with DoH [1].
|
||
// [1] https://docs.controld.com/docs/disable-dnssec-option
|
||
//user_pref("network.trr.disable-ECS", true); // DEFAULT
|
||
|
||
// PREF: DNS Rebind Protection
|
||
// false=do not allow RFC 1918 private addresses in TRR responses (default)
|
||
// true=allow RFC 1918 private addresses in TRR responses
|
||
// [1] https://docs.controld.com/docs/dns-rebind-option
|
||
//user_pref("network.trr.allow-rfc1918", false); // DEFAULT
|
||
|
||
// PREF: Assorted Options
|
||
//user_pref("network.trr.confirmationNS", "skip"); // skip undesired DOH test connection
|
||
//user_pref("network.dns.skipTRR-when-parental-control-enabled", false); // bypass parental controls when using DoH
|
||
//user_pref("network.trr.skip-AAAA-when-not-supported", true); DEFAULT; If Firefox detects that your system does not have IPv6 connectivity, it will not request IPv6 addresses from the DoH server
|
||
//user_pref("network.trr.clear-cache-on-pref-change", true); // DEFAULT; DNS+TRR cache will be cleared when a relevant TRR pref changes
|
||
//user_pref("network.trr.wait-for-portal", false); // DEFAULT; set this to true to tell Firefox to wait for the captive portal detection before TRR is used
|
||
|
||
// PREF: DOH exlcusions
|
||
//user_pref("network.trr.excluded-domains", ""); // DEFAULT; comma-separated list of domain names to be resolved using the native resolver instead of TRR. This pref can be used to make /etc/hosts works with DNS over HTTPS in Firefox.
|
||
//user_pref("network.trr.builtin-excluded-domains", "localhost,local"); // DEFAULT; comma-separated list of domain names to be resolved using the native resolver instead of TRR
|
||
|
||
// PREF: enable Oblivious DoH setup (Cloudfare) [HIDDEN]
|
||
// [1] https://www.reddit.com/r/firefox/comments/xc9y4g/how_to_enable_oblivious_doh_odoh_for_enhanced_dns/
|
||
// [2] https://blog.cloudflare.com/oblivious-dns/
|
||
// [3] https://techpp.com/2020/12/14/odoh-oblivious-dns-over-https-explained/
|
||
//user_pref("network.trr.mode", 2);
|
||
//user_pref("network.trr.odoh.enabled", true);
|
||
//user_pref("network.trr.odoh.configs_uri", "https://odoh.cloudflare-dns.com/.well-known/odohconfigs");
|
||
//user_pref("network.trr.odoh.target_host", "https://odoh.cloudflare-dns.com/");
|
||
//user_pref("network.trr.odoh.target_path", "dns-query");
|
||
//user_pref("network.trr.odoh.proxy_uri", "https://odoh1.surfdomeinen.nl/proxy");
|
||
//user_pref("network.trr.odoh.min_ttl", 86400); // 1 day
|
||
|
||
/******************************************************************************
|
||
* SECTION: ESNI / ECH *
|
||
******************************************************************************/
|
||
|
||
// PREF: enable Encrypted Client Hello (ECH)
|
||
// [NOTE] HTTP is already isolated with network partitioning.
|
||
// [1] https://blog.cloudflare.com/encrypted-client-hello/
|
||
// [2] https://www.youtube.com/watch?v=tfyrVYqXQRE
|
||
// [3] https://groups.google.com/a/chromium.org/g/blink-dev/c/KrPqrd-pO2M/m/Yoe0AG7JAgAJ
|
||
//user_pref("network.dns.echconfig.enabled", true);
|
||
//user_pref("network.dns.http3_echconfig.enabled", true);
|
||
//user_pref("network.dns.use_https_rr_as_altsvc", true); // DEFAULT
|
||
|
||
/******************************************************************************
|
||
* SECTION: PROXY / SOCKS / IPv6 *
|
||
******************************************************************************/
|
||
|
||
// PREF: disable IPv6
|
||
// IPv6 can be abused, especially with MAC addresses, and can leak with VPNs: assuming
|
||
// your ISP and/or router and/or website is IPv6 capable. Most sites will fall back to IPv4
|
||
// [STATS] Firefox telemetry (Sept 2022) shows ~8% of all successful connections are IPv6
|
||
// [NOTE] This is an application level fallback. Disabling IPv6 is best done at an
|
||
// OS/network level, and/or configured properly in VPN setups. If you are not masking your IP,
|
||
// then this won't make much difference. If you are masking your IP, then it can only help.
|
||
// [NOTE] However, many VPN options now provide IPv6 coverage.
|
||
// [NOTE] PHP defaults to IPv6 with "localhost". Use "php -S 127.0.0.1:PORT"
|
||
// [TEST] https://ipleak.org/
|
||
// [1] https://www.internetsociety.org/tag/ipv6-security/ (Myths 2,4,5,6)
|
||
//user_pref("network.dns.disableIPv6", true);
|
||
|
||
// PREF: set the proxy server to do any DNS lookups when using SOCKS
|
||
// e.g. in Tor, this stops your local DNS server from knowing your Tor destination
|
||
// as a remote Tor node will handle the DNS request.
|
||
// [1] https://trac.torproject.org/projects/tor/wiki/doc/TorifyHOWTO/WebBrowsers
|
||
// [SETTING] Settings>Network Settings>Proxy DNS when using SOCKS v5
|
||
//user_pref("network.proxy.socks_remote_dns", true);
|
||
|
||
// PREF: disable using UNC (Uniform Naming Convention) paths [FF61+]
|
||
// [SETUP-CHROME] Can break extensions for profiles on network shares.
|
||
// [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/26424
|
||
//user_pref("network.file.disable_unc_paths", true); // [HIDDEN PREF]
|
||
|
||
// PREF: disable GIO as a potential proxy bypass vector
|
||
// Gvfs/GIO has a set of supported protocols like obex, network,
|
||
// archive, computer, dav, cdda, gphoto2, trash, etc.
|
||
// By default, only sftp is accepted (FF87+).
|
||
// [1] https://bugzilla.mozilla.org/1433507
|
||
// [2] https://en.wikipedia.org/wiki/GVfs
|
||
// [3] https://en.wikipedia.org/wiki/GIO_(software)
|
||
//user_pref("network.gio.supported-protocols", ""); // [HIDDEN PREF]
|
||
|
||
/******************************************************************************
|
||
* SECTION: PASSWORDS *
|
||
******************************************************************************/
|
||
|
||
// PREF: disable password manager
|
||
// [NOTE] This does not clear any passwords already saved.
|
||
user_pref("signon.rememberSignons", false); // Privacy & Security>Logins and Passwords>Ask to save logins and passwords for websites
|
||
//user_pref("signon.rememberSignons.visibilityToggle", false);
|
||
//user_pref("signon.schemeUpgrades", false);
|
||
//user_pref("signon.showAutoCompleteFooter", false);
|
||
//user_pref("signon.autologin.proxy", false);
|
||
//user_pref("signon.debug", false);
|
||
|
||
// PREF: disable Firefox built-in password generator
|
||
// Create passwords with random characters and numbers.
|
||
// [NOTE] Doesn't work with Lockwise disabled!
|
||
// [1] https://wiki.mozilla.org/Toolkit:Password_Manager/Password_Generation
|
||
//user_pref("signon.generation.available", false);
|
||
//user_pref("signon.generation.enabled", false);
|
||
|
||
// PREF: disable Firefox Lockwise (about:logins)
|
||
// [NOTE] No usernames or passwords are sent to third-party sites.
|
||
// [1] https://lockwise.firefox.com/
|
||
// [2] https://support.mozilla.org/en-US/kb/firefox-lockwise-managing-account-data
|
||
// user_pref("signon.management.page.breach-alerts.enabled", false);
|
||
//user_pref("signon.management.page.breachAlertUrl", "");
|
||
// user_pref("browser.contentblocking.report.lockwise.enabled", false);
|
||
//user_pref("browser.contentblocking.report.lockwise.how_it_works.url", "");
|
||
|
||
// PREF: disable formless login capture
|
||
// [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1166947
|
||
//user_pref("signon.formlessCapture.enabled", false);
|
||
|
||
// PREF: disable capturing credentials in private browsing
|
||
//user_pref("signon.privateBrowsingCapture.enabled", false);
|
||
|
||
// PREF: disable auto-filling username & password form fields
|
||
// Can leak in cross-site forms and be spoofed.
|
||
// [NOTE] Username and password is still available when you enter the field.
|
||
//user_pref("signon.autofillForms", false);
|
||
//user_pref("signon.autofillForms.autocompleteOff", true);
|
||
//user_pref("signon.showAutoCompleteOrigins", false);
|
||
|
||
// PREF: disable autofilling saved passwords on HTTP pages
|
||
// [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1217152,1319119
|
||
//user_pref("signon.autofillForms.http", false); // DEFAULT
|
||
|
||
// PREF: disable Firefox import password from signons.sqlite file
|
||
// [1] https://support.mozilla.org/en-US/questions/1020818
|
||
//user_pref("signon.management.page.fileImport.enabled", false);
|
||
//user_pref("signon.importedFromSqlite", false);
|
||
//user_pref("signon.recipes.path", "");
|
||
|
||
// PREF: disable websites autocomplete
|
||
// Don't let sites dictate use of saved logins and passwords.
|
||
//user_pref("signon.storeWhenAutocompleteOff", false);
|
||
|
||
// PREF: prevent password truncation when submitting form data
|
||
// [1] https://www.ghacks.net/2020/05/18/firefox-77-wont-truncate-text-exceeding-max-length-to-address-password-pasting-issues/
|
||
user_pref("editor.truncate_user_pastes", false);
|
||
|
||
// PREF: reveal password icon
|
||
//user_pref("layout.forms.reveal-password-button.enabled", true); // always show icon in password fields
|
||
//user_pref("layout.forms.reveal-password-context-menu.enabled", true); // right-click menu option; DEFAULT [FF112]
|
||
|
||
/****************************************************************************
|
||
* SECTION: ADDRESS + CREDIT CARD MANAGER *
|
||
****************************************************************************/
|
||
|
||
// PREF: disable form autofill
|
||
// [NOTE] stored data is not secure (uses a JSON file)
|
||
// [1] https://wiki.mozilla.org/Firefox/Features/Form_Autofill
|
||
// [2] https://www.ghacks.net/2017/05/24/firefoxs-new-form-autofill-is-awesome
|
||
user_pref("extensions.formautofill.addresses.enabled", false);
|
||
user_pref("extensions.formautofill.creditCards.enabled", false);
|
||
|
||
/******************************************************************************
|
||
* SECTION: MIXED CONTENT + CROSS-SITE *
|
||
******************************************************************************/
|
||
|
||
// PREF: limit (or disable) HTTP authentication credentials dialogs triggered by sub-resources
|
||
// Hardens against potential credentials phishing.
|
||
// 0=don't allow sub-resources to open HTTP authentication credentials dialogs
|
||
// 1=don't allow cross-origin sub-resources to open HTTP authentication credentials dialogs
|
||
// 2=allow sub-resources to open HTTP authentication credentials dialogs (default)
|
||
// [1] https://www.fxsitecompat.com/en-CA/docs/2015/http-auth-dialog-can-no-longer-be-triggered-by-cross-origin-resources/
|
||
user_pref("network.auth.subresource-http-auth-allow", 1);
|
||
|
||
// PREF: disable automatic authentication on Microsoft sites [WINDOWS]
|
||
// [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1695693,1719301
|
||
//user_pref("network.http.windows-sso.enabled", false);
|
||
|
||
// PREF: block insecure active content (scripts) on HTTPS pages.
|
||
// [1] https://trac.torproject.org/projects/tor/ticket/21323
|
||
//user_pref("security.mixed_content.block_active_content", true); // DEFAULT
|
||
|
||
// PREF: block insecure passive content (images) on HTTPS pages
|
||
// Using HTTPS First Policy, Firefox will still make a HTTP connection
|
||
// if it can't find a secure connection, so this isn't redundant.
|
||
// There's the small chance that someone does a MITM on the images
|
||
// and deploys a malicious image. (They're rare, but possible).
|
||
// [NOTE] You can remove if using HTTPS-Only Mode.
|
||
user_pref("security.mixed_content.block_display_content", true);
|
||
|
||
// PREF: upgrade passive content to use HTTPS on secure pages
|
||
//user_pref("security.mixed_content.upgrade_display_content", true); // DEFAULT [FF 110]
|
||
|
||
// PREF: block insecure downloads from secure sites
|
||
// [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1660952
|
||
//user_pref("dom.block_download_insecure", true); // DEFAULT
|
||
|
||
// PREF: allow PDFs to load javascript
|
||
// https://www.reddit.com/r/uBlockOrigin/comments/mulc86/firefox_88_now_supports_javascript_in_pdf_files/
|
||
user_pref("pdfjs.enableScripting", false);
|
||
|
||
// PREF: disable bypassing 3rd party extension install prompts
|
||
// [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1659530,1681331
|
||
user_pref("extensions.postDownloadThirdPartyPrompt", false);
|
||
|
||
// PREF: disable permissions delegation [deprecated in FF118]
|
||
// Currently applies to cross-origin geolocation, camera, mic and screen-sharing
|
||
// permissions, and fullscreen requests. Disabling delegation means any prompts
|
||
// for these will show/use their correct 3rd party origin.
|
||
// [1] https://groups.google.com/forum/#!topic/mozilla.dev.platform/BdFOMAuCGW8/discussion
|
||
user_pref("permissions.delegation.enabled", false);
|
||
|
||
// PREF: disable middle click on new tab button opening URLs or searches using clipboard [FF115+]
|
||
// Enable if you're using LINUX.
|
||
//user_pref("browser.tabs.searchclipboardfor.middleclick", false); // DEFAULT WINDOWS macOS
|
||
|
||
// PREF: enforce TLS 1.0 and 1.1 downgrades as session only
|
||
//user_pref("security.tls.version.enable-deprecated", false); // DEFAULT
|
||
|
||
// PREF: enable (limited but sufficient) window.opener protection
|
||
// Makes rel=noopener implicit for target=_blank in anchor and area elements when no rel attribute is set.
|
||
// [1] https://jakearchibald.com/2016/performance-benefits-of-rel-noopener/
|
||
//user_pref("dom.targetBlankNoOpener.enabled", true); // DEFAULT
|
||
|
||
// PREF: enable "window.name" protection
|
||
// If a new page from another domain is loaded into a tab, then window.name is set to an empty string. The original
|
||
// string is restored if the tab reverts back to the original page. This change prevents some cross-site attacks.
|
||
//user_pref("privacy.window.name.update.enabled", true); // DEFAULT
|
||
|
||
/******************************************************************************
|
||
* SECTION: HEADERS / REFERERS *
|
||
******************************************************************************/
|
||
|
||
// PREF: HTTP Referrer Header
|
||
// [NOTE] Only cross-origin referers need control.
|
||
// See network.http.referer.XOriginPolicy.
|
||
// This may cause breakage where third party images and videos
|
||
// may not load, and with authentication on sites such as banks.
|
||
// 0 = Never send
|
||
// 1 = Send only when clicking on links and similar elements
|
||
// 2 = Send on all requests (default)
|
||
//user_pref("network.http.sendRefererHeader", 2); // DEFAULT
|
||
|
||
// PREF: default referrer policy (used unless overriden by the site)
|
||
// 0=no-referrer, 1=same-origin, 2=strict-origin-when-cross-origin (default),
|
||
// 3=no-referrer-when-downgrade
|
||
// [1] https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Referrer-Policy#examples
|
||
// [2] https://plausible.io/blog/referrer-policy
|
||
//user_pref("network.http.referer.defaultPolicy", 2); // DEFAULT
|
||
//user_pref("network.http.referer.defaultPolicy.pbmode", 2); // DEFAULT
|
||
|
||
// PREF: default Referrer Policy for trackers (used unless overriden by the site)
|
||
// Applied to third-party trackers when the default
|
||
// cookie policy is set to reject third-party trackers.
|
||
// 0=no-referrer, 1=same-origin, 2=strict-origin-when-cross-origin (default),
|
||
// 3=no-referrer-when-downgrade
|
||
// [1] https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Referrer-Policy#examples
|
||
//user_pref("network.http.referer.defaultPolicy.trackers", 1);
|
||
//user_pref("network.http.referer.defaultPolicy.trackers.pbmode", 1);
|
||
|
||
// PREF: control the amount of cross-origin information to send
|
||
// Controls how much referrer to send across origins (different domains).
|
||
// 0=send full URI (default), 1=scheme+host+port+path, 2=scheme+host+port
|
||
// [1] https://blog.mozilla.org/security/2021/03/22/firefox-87-trims-http-referrers-by-default-to-protect-user-privacy/
|
||
// [2] https://web.dev/referrer-best-practices/
|
||
user_pref("network.http.referer.XOriginTrimmingPolicy", 2);
|
||
|
||
// PREF: control when to send a cross-origin referer
|
||
// Controls whether or not to send a referrer across different sites.
|
||
// This includes images, links, and embedded social media on pages.
|
||
// This may cause breakage where third party images and videos
|
||
// may not load, and with authentication on sites such as banks.
|
||
// 0=always send referrer (default)
|
||
// 1=send across subdomains [from a.example.com to b.example.com] (breaks Instagram embeds, Bing login, MangaPill, and some streaming sites)
|
||
// 2=full host name must match [from c.example.com to c.example.com] (breaks Vimeo, iCloud, Instagram, Amazon book previews, and more)
|
||
// [TEST] https://www.jeffersonscher.com/res/jstest.php
|
||
// [1] https://developer.mozilla.org/en-US/docs/Web/HTTP/Headers/Referrer-Policy#examples
|
||
// [2] https://web.dev/referrer-best-practices/
|
||
//user_pref("network.http.referer.XOriginPolicy", 0); // DEFAULT
|
||
|
||
/******************************************************************************
|
||
* SECTION: CONTAINERS *
|
||
******************************************************************************/
|
||
|
||
// PREF: enable Container Tabs and its UI setting [FF50+]
|
||
// [NOTE] No longer a privacy benefit due to Firefox upgrades (see State Partitioning and Network Partitioning)
|
||
// Useful if you want to login to the same site under different accounts
|
||
// You also may want to download Multi-Account Containers for extra options (2)
|
||
// [SETTING] General>Tabs>Enable Container Tabs
|
||
// [1] https://wiki.mozilla.org/Security/Contextual_Identity_Project/Containers
|
||
// [2] https://addons.mozilla.org/en-US/firefox/addon/multi-account-containers/
|
||
user_pref("privacy.userContext.ui.enabled", true);
|
||
//user_pref("privacy.userContext.enabled", true);
|
||
|
||
// PREF: set behavior on "+ Tab" button to display container menu on left click [FF74+]
|
||
// [NOTE] The menu is always shown on long press and right click.
|
||
// [SETTING] General>Tabs>Enable Container Tabs>Settings>Select a container for each new tab ***/
|
||
//user_pref("privacy.userContext.newTabContainerOnLeftClick.enabled", true);
|
||
|
||
/******************************************************************************
|
||
* SECTION: WEBRTC *
|
||
******************************************************************************/
|
||
|
||
// PREF: disable WebRTC (Web Real-Time Communication)
|
||
// Firefox desktop uses mDNS hostname obfuscation and the private IP is never exposed until
|
||
// required in TRUSTED scenarios; i.e. after you grant device (microphone or camera) access.
|
||
// [TEST] https://browserleaks.com/webrtc
|
||
// [1] https://groups.google.com/g/discuss-webrtc/c/6stQXi72BEU/m/2FwZd24UAQAJ
|
||
// [2] https://datatracker.ietf.org/doc/html/draft-ietf-mmusic-mdns-ice-candidates#section-3.1.1
|
||
//user_pref("media.peerconnection.enabled", false);
|
||
|
||
// PREF: enable WebRTC Global Mute Toggles [NIGHTLY]
|
||
//user_pref("privacy.webrtc.globalMuteToggles", true);
|
||
|
||
// PREF: force WebRTC inside the proxy [FF70+]
|
||
user_pref("media.peerconnection.ice.proxy_only_if_behind_proxy", true);
|
||
|
||
// PREF: force a single network interface for ICE candidates generation [FF42+]
|
||
// When using a system-wide proxy, it uses the proxy interface.
|
||
// [1] https://developer.mozilla.org/en-US/docs/Web/API/RTCIceCandidate
|
||
// [2] https://wiki.mozilla.org/Media/WebRTC/Privacy
|
||
user_pref("media.peerconnection.ice.default_address_only", true);
|
||
|
||
// PREF: force exclusion of private IPs from ICE candidates [FF51+]
|
||
// [SETUP-HARDEN] This will protect your private IP even in TRUSTED scenarios after you
|
||
// grant device access, but often results in breakage on video-conferencing platforms.
|
||
//user_pref("media.peerconnection.ice.no_host", true);
|
||
|
||
/******************************************************************************
|
||
* SECTION: PLUGINS *
|
||
******************************************************************************/
|
||
|
||
// PREF: disable GMP (Gecko Media Plugins)
|
||
// [1] https://wiki.mozilla.org/GeckoMediaPlugins
|
||
//user_pref("media.gmp-provider.enabled", false);
|
||
|
||
// PREF: disable widevine CDM (Content Decryption Module)
|
||
// [NOTE] This is covered by the EME master switch.
|
||
//user_pref("media.gmp-widevinecdm.enabled", false);
|
||
|
||
// PREF: disable all DRM content (EME: Encryption Media Extension)
|
||
// EME is a JavaScript API for playing DRMed (not free) video content in HTML.
|
||
// A DRM component called a Content Decryption Module (CDM) decrypts, decodes, and displays the video.
|
||
// e.g. Netflix, Amazon Prime, Hulu, HBO, Disney+, Showtime, Starz, DirectTV
|
||
// [SETTING] General>DRM Content>Play DRM-controlled content
|
||
// [TEST] https://bitmovin.com/demos/drm
|
||
// [1] https://www.eff.org/deeplinks/2017/10/drms-dead-canary-how-we-just-lost-web-what-we-learned-it-and-what-we-need-do-next
|
||
// [2] https://www.reddit.com/r/firefox/comments/10gvplf/comment/j55htc7
|
||
//user_pref("media.eme.enabled", false);
|
||
// Optionally, hide the setting which also disables the DRM prompt:
|
||
//user_pref("browser.eme.ui.enabled", false);
|
||
|
||
/******************************************************************************
|
||
* SECTION: VARIOUS *
|
||
******************************************************************************/
|
||
|
||
// PREF: enable FTP protocol
|
||
// Firefox redirects any attempt to load a FTP resource.
|
||
// to the default search engine if the FTP protocol is disabled.
|
||
// [1] https://www.ghacks.net/2018/02/20/firefox-60-with-new-preference-to-disable-ftp/
|
||
//user_pref("network.ftp.enabled", true);
|
||
|
||
// PREF: decode URLs in other languages
|
||
// [WARNING] Causes unintended consequences when copy+paste links with underscores.
|
||
// [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1320061
|
||
//user_pref("browser.urlbar.decodeURLsOnCopy", false); // DEFAULT
|
||
|
||
// PREF: number of usages of the web console
|
||
// If this is less than 5, then pasting code into the web console is disabled.
|
||
//user_pref("devtools.selfxss.count", 5);
|
||
|
||
/******************************************************************************
|
||
* SECTION: SAFE BROWSING (SB) *
|
||
******************************************************************************/
|
||
|
||
// A full url is never sent to Google, only a part-hash of the prefix,
|
||
// hidden with noise of other real part-hashes. Firefox takes measures such as
|
||
// stripping out identifying parameters, and since SBv4 (FF57+), doesn't even use cookies.
|
||
// (Turn on browser.safebrowsing.debug to monitor this activity)
|
||
// [1] https://feeding.cloud.geek.nz/posts/how-safe-browsing-works-in-firefox/
|
||
// [2] https://wiki.mozilla.org/Security/Safe_Browsing
|
||
// [3] https://support.mozilla.org/kb/how-does-phishing-and-malware-protection-work
|
||
// [4] https://educatedguesswork.org/posts/safe-browsing-privacy/
|
||
|
||
// PREF: Safe Browsing
|
||
// [WARNING] Be sure to have alternate security measures if you disable SB! Adblockers do not count!
|
||
// [SETTING] Privacy & Security>Security>... Block dangerous and deceptive content
|
||
// [ALTERNATIVE] Enable local checks only: https://github.com/yokoffing/Betterfox/issues/87
|
||
// [1] https://support.mozilla.org/en-US/kb/how-does-phishing-and-malware-protection-work#w_what-information-is-sent-to-mozilla-or-its-partners-when-phishing-and-malware-protection-is-enabled
|
||
// [2] https://wiki.mozilla.org/Security/Safe_Browsing
|
||
// [3] https://developers.google.com/safe-browsing/v4
|
||
// [4] https://github.com/privacyguides/privacyguides.org/discussions/423#discussioncomment-1752006
|
||
// [5] https://github.com/privacyguides/privacyguides.org/discussions/423#discussioncomment-1767546
|
||
// [6] https://wiki.mozilla.org/Security/Safe_Browsing
|
||
// [7] https://ashkansoltani.org/2012/02/25/cookies-from-nowhere (outdated)
|
||
// [8] https://blog.cryptographyengineering.com/2019/10/13/dear-apple-safe-browsing-might-not-be-that-safe/ (outdated)
|
||
// [9] https://the8-bit.com/apple-proxies-google-safe-browsing-privacy/
|
||
// [10] https://github.com/brave/brave-browser/wiki/Deviations-from-Chromium-(features-we-disable-or-remove)#services-we-proxy-through-brave-servers
|
||
//user_pref("browser.safebrowsing.malware.enabled", false); // all checks happen locally
|
||
//user_pref("browser.safebrowsing.phishing.enabled", false); // all checks happen locally
|
||
//user_pref("browser.safebrowsing.blockedURIs.enabled", false);
|
||
//user_pref("browser.safebrowsing.provider.google4.gethashURL", "");
|
||
//user_pref("browser.safebrowsing.provider.google4.updateURL", "");
|
||
//user_pref("browser.safebrowsing.provider.google.gethashURL", "");
|
||
//user_pref("browser.safebrowsing.provider.google.updateURL", "");
|
||
|
||
// PREF: disable SB checks for downloads
|
||
// This is the master switch for the safebrowsing.downloads prefs (both local lookups + remote).
|
||
// [NOTE] Still enable this for checks to happen locally.
|
||
// [SETTING] Privacy & Security>Security>... "Block dangerous downloads"
|
||
//user_pref("browser.safebrowsing.downloads.enabled", false); // all checks happen locally
|
||
|
||
// PREF: disable SB checks for downloads (remote)
|
||
// To verify the safety of certain executable files, Firefox may submit some information about the
|
||
// file, including the name, origin, size and a cryptographic hash of the contents, to the Google
|
||
// Safe Browsing service which helps Firefox determine whether or not the file should be blocked.
|
||
// [NOTE] If you do not understand the consequences, override this.
|
||
user_pref("browser.safebrowsing.downloads.remote.enabled", false);
|
||
//user_pref("browser.safebrowsing.downloads.remote.url", "");
|
||
// disable SB checks for unwanted software
|
||
// [SETTING] Privacy & Security>Security>... "Warn you about unwanted and uncommon software"
|
||
//user_pref("browser.safebrowsing.downloads.remote.block_potentially_unwanted", false);
|
||
//user_pref("browser.safebrowsing.downloads.remote.block_uncommon", false);
|
||
|
||
// PREF: allow user to "ignore this warning" on SB warnings
|
||
// If clicked, it bypasses the block for that session. This is a means for admins to enforce SB.
|
||
// Report false positives to [2]
|
||
// [TEST] see https://github.com/arkenfox/user.js/wiki/Appendix-A-Test-Sites#-mozilla
|
||
// [1] https://bugzilla.mozilla.org/1226490
|
||
// [2] https://safebrowsing.google.com/safebrowsing/report_general/
|
||
//user_pref("browser.safebrowsing.allowOverride", true); // DEFAULT
|
||
|
||
/******************************************************************************
|
||
* SECTION: MOZILLA *
|
||
******************************************************************************/
|
||
|
||
// PREF: prevent accessibility services from accessing your browser [RESTART]
|
||
// Accessibility Service may negatively impact Firefox browsing performance.
|
||
// Disable it if you’re not using any type of physical impairment assistive software.
|
||
// [1] https://support.mozilla.org/kb/accessibility-services
|
||
// [2] https://www.ghacks.net/2021/08/25/firefox-tip-turn-off-accessibility-services-to-improve-performance/
|
||
// [3] https://www.troddit.com/r/firefox/comments/p8g5zd/why_does_disabling_accessibility_services_improve
|
||
// [4] https://winaero.com/firefox-has-accessibility-service-memory-leak-you-should-disable-it/
|
||
// [5] https://www.ghacks.net/2022/12/26/firefoxs-accessibility-performance-is-getting-a-huge-boost/
|
||
user_pref("accessibility.force_disabled", 1);
|
||
//user_pref("devtools.accessibility.enabled", false);
|
||
|
||
// PREF: disable Firefox accounts
|
||
// [ALTERNATIVE] Use xBrowserSync [1]
|
||
// [1] https://addons.mozilla.org/en-US/firefox/addon/xbs
|
||
// [2] https://github.com/arkenfox/user.js/issues/1175
|
||
user_pref("identity.fxaccounts.enabled", false);
|
||
|
||
// PREF: disable Firefox View [FF106+]
|
||
// [1] https://support.mozilla.org/en-US/kb/how-set-tab-pickup-firefox-view#w_what-is-firefox-view
|
||
user_pref("browser.tabs.firefox-view", false);
|
||
|
||
// PREF: disable Push Notifications API [FF44+]
|
||
// Push is an API that allows websites to send you (subscribed) messages even when the site
|
||
// isn't loaded, by pushing messages to your userAgentID through Mozilla's Push Server.
|
||
// You shouldn't need to disable this.
|
||
// [WHY] Push requires subscription.
|
||
// [NOTE] To remove all subscriptions, reset "dom.push.userAgentID"
|
||
// [1] https://support.mozilla.org/en-US/kb/push-notifications-firefox
|
||
// [2] https://developer.mozilla.org/en-US/docs/Web/API/Push_API
|
||
// [3] https://www.reddit.com/r/firefox/comments/fbyzd4/the_most_private_browser_isnot_firefox/
|
||
//user_pref("dom.push.enabled", false);
|
||
//user_pref("dom.push.userAgentID", "");
|
||
|
||
// PREF: default permission for Web Notifications
|
||
// To add site exceptions: Page Info>Permissions>Receive Notifications
|
||
// To manage site exceptions: Options>Privacy & Security>Permissions>Notifications>Settings
|
||
// 0=always ask (default), 1=allow, 2=block
|
||
user_pref("permissions.default.desktop-notification", 2);
|
||
|
||
// PREF: default permission for Location Requests
|
||
// 0=always ask (default), 1=allow, 2=block
|
||
user_pref("permissions.default.geo", 2);
|
||
|
||
// PREF: use Mozilla geolocation service instead of Google when geolocation is enabled
|
||
user_pref("geo.provider.network.url", "https://location.services.mozilla.com/v1/geolocate?key=%MOZILLA_API_KEY%");
|
||
|
||
// PREF: disable using the OS's geolocation service
|
||
//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] broken on Linux?
|
||
//user_pref("geo.provider.use_geoclue", false); // [FF102+] [LINUX]
|
||
|
||
// PREF: logging geolocation to the console
|
||
//user_pref("geo.provider.network.logging.enabled", true);
|
||
|
||
// PREF: disable region updates
|
||
// [1] https://firefox-source-docs.mozilla.org/toolkit/modules/toolkit_modules/Region.html
|
||
//user_pref("browser.region.update.enabled", false);
|
||
//user_pref("browser.region.network.url", "");
|
||
|
||
// PREF: enforce Firefox blocklist for extensions + no hiding tabs
|
||
// This includes updates for "revoked certificates".
|
||
// [1] https://blog.mozilla.org/security/2015/03/03/revoking-intermediate-certificates-introducing-onecrl/
|
||
// [2] https://trac.torproject.org/projects/tor/ticket/16931
|
||
//user_pref("extensions.blocklist.enabled", true); // DEFAULT
|
||
|
||
// PREF: disable auto-INSTALLING Firefox updates [NON-WINDOWS]
|
||
// [NOTE] In FF65+ on Windows this SETTING (below) is now stored in a file and the pref was removed.
|
||
// [SETTING] General>Firefox Updates>Check for updates but let you choose to install them
|
||
//user_pref("app.update.auto", false);
|
||
|
||
// PREF: disable automatic extension updates
|
||
//user_pref("extensions.update.enabled", false);
|
||
|
||
// PREF: disable search engine updates (e.g. OpenSearch)
|
||
// [NOTE] This does not affect Mozilla's built-in or Web Extension search engines.
|
||
//user_pref("browser.search.update", false);
|
||
|
||
// PREF: remove special permissions for certain mozilla domains
|
||
// default = resource://app/defaults/permissions
|
||
//user_pref("permissions.manager.defaultsUrl", "");
|
||
|
||
// PREF: remove webchannel whitelist
|
||
user_pref("webchannel.allowObject.urlWhitelist", "");
|
||
|
||
// PREF: disable mozAddonManager Web API [FF57+]
|
||
// [NOTE] To allow extensions to work on AMO, you also need extensions.webextensions.restrictedDomains.
|
||
// [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1384330,1406795,1415644,1453988
|
||
//user_pref("privacy.resistFingerprinting.block_mozAddonManager", true); // [HIDDEN PREF FF57-108]
|
||
|
||
// PREF: disable webextension restrictions on Mozilla domains
|
||
// [NOTE] May only work with PREF: privacy.resistfingerprinting enabled and/or DEV/NIGHTLY-only?
|
||
// [1] https://www.reddit.com/r/firefox/comments/n1lpaf/make_addons_work_on_mozilla_sites/gwdy235/?context=3
|
||
// [2] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1384330,1406795,1415644,1453988
|
||
//user_pref("extensions.webextensions.restrictedDomains", "");
|
||
|
||
// PREF: do not require signing for extensions [ESR/DEV/NIGHTLY ONLY]
|
||
// [1] https://support.mozilla.org/en-US/kb/add-on-signing-in-firefox#w_what-are-my-options-if-i-want-to-use-an-unsigned-add-on-advanced-users
|
||
//user_pref("xpinstall.signatures.required", false);
|
||
|
||
// PREF: disable Quarantined Domains [FF115+]
|
||
// Users may see a notification when running add-ons that are not monitored by Mozilla when they visit certain sites.
|
||
// The notification informs them that “some extensions are not allowed” and were blocked from running on that site.
|
||
// There's no details as to which sites are affected.
|
||
// [1] https://support.mozilla.org/en-US/kb/quarantined-domains
|
||
// [2] https://www.ghacks.net/2023/07/04/firefox-115-new-esr-base-and-some-add-ons-may-be-blocked-from-running-on-certain-sites/
|
||
//user_pref("extensions.quarantinedDomains.enabled", false);
|
||
|
||
/******************************************************************************
|
||
* SECTION: TELEMETRY *
|
||
******************************************************************************/
|
||
// Disable all the various Mozilla telemetry, studies, reports, etc.
|
||
|
||
// PREF: Telemetry
|
||
user_pref("toolkit.telemetry.unified", false);
|
||
user_pref("toolkit.telemetry.enabled", false);
|
||
user_pref("toolkit.telemetry.server", "data:,");
|
||
user_pref("toolkit.telemetry.archive.enabled", false);
|
||
user_pref("toolkit.telemetry.newProfilePing.enabled", false);
|
||
user_pref("toolkit.telemetry.shutdownPingSender.enabled", false);
|
||
user_pref("toolkit.telemetry.updatePing.enabled", false);
|
||
user_pref("toolkit.telemetry.bhrPing.enabled", false);
|
||
user_pref("toolkit.telemetry.firstShutdownPing.enabled", false);
|
||
user_pref("toolkit.telemetry.dap_enabled", false); // DEFAULT [FF108]
|
||
|
||
// PREF: Check bundled omni JARs for corruption
|
||
// [1] https://github.com/ghostery/user-agent-desktop/issues/141
|
||
// [2] https://github.com/arkenfox/user.js/issues/791
|
||
//user_pref("corroborator.enabled", false);
|
||
|
||
// PREF: Telemetry Coverage
|
||
user_pref("toolkit.telemetry.coverage.opt-out", true);
|
||
user_pref("toolkit.coverage.opt-out", true);
|
||
//user_pref("toolkit.coverage.endpoint.base", "");
|
||
|
||
// PREF: Health Reports
|
||
// [SETTING] Privacy & Security>Firefox Data Collection & Use>Allow Firefox to send technical data.
|
||
user_pref("datareporting.healthreport.uploadEnabled", false);
|
||
|
||
// PREF: new data submission, master kill switch
|
||
// If disabled, no policy is shown or upload takes place, ever
|
||
// [1] https://bugzilla.mozilla.org/1195552
|
||
user_pref("datareporting.policy.dataSubmissionEnabled", false);
|
||
|
||
// PREF: Studies
|
||
// [SETTING] Privacy & Security>Firefox Data Collection & Use>Allow Firefox to install and run studies
|
||
user_pref("app.shield.optoutstudies.enabled", false);
|
||
|
||
// Personalized Extension Recommendations in about:addons and AMO
|
||
// [NOTE] This pref has no effect when Health Reports are disabled.
|
||
// [SETTING] Privacy & Security>Firefox Data Collection & Use>Allow Firefox to make personalized extension recommendations
|
||
user_pref("browser.discovery.enabled", false);
|
||
|
||
// PREF: disable crash reports
|
||
user_pref("breakpad.reportURL", "");
|
||
user_pref("browser.tabs.crashReporting.sendReport", false);
|
||
//user_pref("browser.crashReports.unsubmittedCheck.enabled", false); // DEFAULT
|
||
// PREF: enforce no submission of backlogged crash reports
|
||
user_pref("browser.crashReports.unsubmittedCheck.autoSubmit2", false);
|
||
|
||
// PREF: Captive Portal detection
|
||
// [WARNING] Do NOT use for mobile devices. May NOT be able to use Firefox on public wifi (hotels, coffee shops, etc).
|
||
// [1] https://www.eff.org/deeplinks/2017/08/how-captive-portals-interfere-wireless-security-and-privacy
|
||
// [2] https://wiki.mozilla.org/Necko/CaptivePortal
|
||
user_pref("captivedetect.canonicalURL", "");
|
||
user_pref("network.captive-portal-service.enabled", false);
|
||
|
||
// PREF: Network Connectivity checks
|
||
// [WARNING] Do NOT use for mobile devices. May NOT be able to use Firefox on public wifi (hotels, coffee shops, etc).
|
||
// [1] https://bugzilla.mozilla.org/1460537
|
||
user_pref("network.connectivity-service.enabled", false);
|
||
|
||
// PREF: software that continually reports what default browser you are using [WINDOWS]
|
||
// [WARNING] Breaks "Make Default..." button in Preferences to set Firefox as the default browser [1].
|
||
// [1] https://github.com/yokoffing/Betterfox/issues/166
|
||
//user_pref("default-browser-agent.enabled", false);
|
||
|
||
// PREF: "report extensions for abuse"
|
||
//user_pref("extensions.abuseReport.enabled", false);
|
||
|
||
// PREF: Normandy/Shield [extensions tracking]
|
||
// Shield is an telemetry system (including Heartbeat) that can also push and test "recipes"
|
||
user_pref("app.normandy.enabled", false);
|
||
user_pref("app.normandy.api_url", "");
|
||
|
||
// PREF: PingCentre telemetry (used in several System Add-ons)
|
||
// Currently blocked by 'datareporting.healthreport.uploadEnabled'
|
||
user_pref("browser.ping-centre.telemetry", false);
|
||
|
||
// PREF: disable Firefox Home (Activity Stream) telemetry
|
||
user_pref("browser.newtabpage.activity-stream.telemetry", false);
|
||
user_pref("browser.newtabpage.activity-stream.feeds.telemetry", false);
|
||
|
||
// PREF: disable check for proxies
|
||
//user_pref("network.notify.checkForProxies", false);
|