diff --git a/fedora-41-gnome.yaml b/fedora-41-gnome.yaml index 25fd8bf..76e7f14 100644 --- a/fedora-41-gnome.yaml +++ b/fedora-41-gnome.yaml @@ -2,21 +2,25 @@ hosts: 127.0.0.1 connection: local tasks: - - name: 'Baseline hardening' ansible.builtin.include_role: name: 'baseline' vars: - umask_changes: true - manage_network: true + - name: 'Gnome package stuff' ansible.builtin.include_role: name: gnome + - name: 'Setup dom0 prompt for sudo' ansible.builtin.include_role: name: sudo-dom0-prompt + - name: 'Install trivalent' ansible.builtin.include_role: name: trivalent -# - ansible.builtin.include-role: -# name: arkenfox \ No newline at end of file + + - name: 'Setup arkenfox' + ansible.builtin.include-role: + name: arkenfox \ No newline at end of file diff --git a/roles/arkenfox/files/usr/lib64/firefox/browser/defaults/preferences/userjs-arkenfox.js b/roles/arkenfox/files/usr/lib64/firefox/browser/defaults/preferences/userjs-arkenfox.js new file mode 100644 index 0000000..ff44c86 --- /dev/null +++ b/roles/arkenfox/files/usr/lib64/firefox/browser/defaults/preferences/userjs-arkenfox.js @@ -0,0 +1,1309 @@ +/****** +* name: arkenfox user.js +* date: 13 January 2025 +* version: 133 +* urls: https://github.com/arkenfox/user.js [repo] +* : https://arkenfox.github.io/gui/ [interactive] +* license: MIT: https://github.com/arkenfox/user.js/blob/master/LICENSE.txt + +* README: + + 0. Changes made for Brace and Mull are noted with //BRACE and //MULL respectively + * sed -i 's/pref(/user_pref(/' userjs-arkenfox.js + * sed -i 's/pref(/pref(/' userjs-arkenfox.js + 1. Consider using Tor Browser if it meets your needs or fits your threat model + * https://2019.www.torproject.org/about/torusers.html + 2. Read the entire wiki + * https://github.com/arkenfox/user.js/wiki + 3. If you skipped step 2, return to step 2 + 4. Make changes in a user-overrides.js + * There are often trade-offs and conflicts between security vs privacy vs anti-tracking + and these need to be balanced against functionality & convenience & breakage + * Some site breakage and unintended consequences will happen. Everyone's experience will differ + e.g. some user data is erased on exit (section 2800), change this to suit your needs + * While not 100% definitive, search for "[SETUP" tags + 5. Some tag info + [SETUP-SECURITY] it's one item, read it + [SETUP-WEB] can cause some websites to break + [SETUP-CHROME] changes how Firefox itself behaves (i.e. not directly website related) + 6. Override Recipes: https://github.com/arkenfox/user.js/issues/1080 + +* RELEASES: https://github.com/arkenfox/user.js/releases + + * Use the arkenfox release that matches your Firefox version + - DON'T wait for arkenfox to update Firefox, nothing major changes these days + * Each release + - run prefsCleaner to reset prefs made inactive, including deprecated (9999) + * ESR + - It is recommended to not use the updater, or you will get a later version which may cause issues. + So you should manually append your overrides (and keep a copy), and manually update when you + change ESR releases (arkenfox is already past that release) + - If you decide to keep updating, then the onus is on you - also see section 9999 + +* INDEX: + + 0100: STARTUP + 0200: GEOLOCATION + 0300: QUIETER FOX + 0400: SAFE BROWSING + 0600: BLOCK IMPLICIT OUTBOUND + 0700: DNS / DoH / PROXY / SOCKS + 0800: LOCATION BAR / SEARCH BAR / SUGGESTIONS / HISTORY / FORMS + 0900: PASSWORDS + 1000: DISK AVOIDANCE + 1200: HTTPS (SSL/TLS / OCSP / CERTS / HPKP) + 1600: REFERERS + 1700: CONTAINERS + 2000: PLUGINS / MEDIA / WEBRTC + 2400: DOM (DOCUMENT OBJECT MODEL) + 2600: MISCELLANEOUS + 2700: ETP (ENHANCED TRACKING PROTECTION) + 2800: SHUTDOWN & SANITIZING + 4000: FPP (fingerprintingProtection) + 4500: OPTIONAL RFP (resistFingerprinting) + 5000: OPTIONAL OPSEC + 5500: OPTIONAL HARDENING + 6000: DON'T TOUCH + 7000: DON'T BOTHER + 8000: DON'T BOTHER: FINGERPRINTING + 9000: NON-PROJECT RELATED + 9999: DEPRECATED / RENAMED + +******/ + +/* START: internal custom pref to test for syntax errors + * [NOTE] Not all syntax errors cause parsing to abort i.e. reaching the last debug pref + * no longer necessarily means that all prefs have been applied. Check the console right + * after startup for any warnings/error messages related to non-applied prefs + * [1] https://blog.mozilla.org/nnethercote/2018/03/09/a-new-preferences-parser-for-firefox/ ***/ + pref("_user.js.parrot", "START: Oh yes, the Norwegian Blue... what's wrong with it?"); + + /* 0000: disable about:config warning ***/ + pref("browser.aboutConfig.showWarning", false); + + /*** [SECTION 0100]: STARTUP ***/ + pref("_user.js.parrot", "0100 syntax error: the parrot's dead!"); + /* 0102: set startup page [SETUP-CHROME] + * 0=blank, 1=home, 2=last visited page, 3=resume previous session + * [NOTE] Session Restore is cleared with history (2811), and not used in Private Browsing mode + * [SETTING] General>Startup>Restore previous session ***/ + pref("browser.startup.page", 0); + /* 0103: set HOME+NEWWINDOW page + * about:home=Firefox Home (default, see 0105), custom URL, about:blank + * [SETTING] Home>New Windows and Tabs>Homepage and new windows ***/ + pref("browser.startup.homepage", "about:blank"); + /* 0104: set NEWTAB page + * true=Firefox Home (default, see 0105), false=blank page + * [SETTING] Home>New Windows and Tabs>New tabs ***/ + pref("browser.newtabpage.enabled", false); + /* 0105: disable sponsored content on Firefox Home (Activity Stream) + * [SETTING] Home>Firefox Home Content ***/ + pref("browser.newtabpage.activity-stream.showSponsored", false); // [FF58+] + pref("browser.newtabpage.activity-stream.showSponsoredTopSites", false); // [FF83+] Shortcuts>Sponsored shortcuts + /* 0106: clear default topsites + * [NOTE] This does not block you from adding your own ***/ + pref("browser.newtabpage.activity-stream.default.sites", ""); + + /*** [SECTION 0200]: GEOLOCATION ***/ + pref("_user.js.parrot", "0200 syntax error: the parrot's definitely deceased!"); + /* 0202: disable using the OS's geolocation service ***/ + pref("geo.provider.ms-windows-location", false); // [WINDOWS] + pref("geo.provider.use_corelocation", false); // [MAC] + pref("geo.provider.use_geoclue", false); // [FF102+] [LINUX] + + /*** [SECTION 0300]: QUIETER FOX ***/ + pref("_user.js.parrot", "0300 syntax error: the parrot's not pinin' for the fjords!"); + /** RECOMMENDATIONS ***/ + /* 0320: disable recommendation pane in about:addons (uses Google Analytics) ***/ + pref("extensions.getAddons.showPane", false); // [HIDDEN PREF] + /* 0321: disable recommendations in about:addons' Extensions and Themes panes [FF68+] ***/ + pref("extensions.htmlaboutaddons.recommendations.enabled", false); + /* 0322: disable personalized Extension Recommendations in about:addons and AMO [FF65+] + * [NOTE] This pref has no effect when Health Reports (0331) are disabled + * [SETTING] Privacy & Security>Firefox Data Collection & Use>Allow Firefox to make personalized extension recommendations + * [1] https://support.mozilla.org/kb/personalized-extension-recommendations ***/ + pref("browser.discovery.enabled", false); + /* 0323: disable shopping experience [FF116+] + * [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1840156#c0 ***/ + pref("browser.shopping.experience2023.enabled", false); // [DEFAULT: false] + + /** TELEMETRY ***/ + /* 0330: disable new data submission [FF41+] + * If disabled, no policy is shown or upload takes place, ever + * [1] https://bugzilla.mozilla.org/1195552 ***/ + pref("datareporting.policy.dataSubmissionEnabled", false); + /* 0331: disable Health Reports + * [SETTING] Privacy & Security>Firefox Data Collection & Use>Allow Firefox to send technical... data ***/ + pref("datareporting.healthreport.uploadEnabled", false); + /* 0332: disable telemetry + * The "unified" pref affects the behavior of the "enabled" pref + * - If "unified" is false then "enabled" controls the telemetry module + * - If "unified" is true then "enabled" only controls whether to record extended data + * [NOTE] "toolkit.telemetry.enabled" is now LOCKED to reflect prerelease (true) or release builds (false) [2] + * [1] https://firefox-source-docs.mozilla.org/toolkit/components/telemetry/telemetry/internals/preferences.html + * [2] https://medium.com/georg-fritzsche/data-preference-changes-in-firefox-58-2d5df9c428b5 ***/ + pref("toolkit.telemetry.unified", false); + pref("toolkit.telemetry.enabled", false); // see [NOTE] + pref("toolkit.telemetry.server", "data:,"); + pref("toolkit.telemetry.archive.enabled", false); + pref("toolkit.telemetry.newProfilePing.enabled", false); // [FF55+] + pref("toolkit.telemetry.shutdownPingSender.enabled", false); // [FF55+] + pref("toolkit.telemetry.updatePing.enabled", false); // [FF56+] + pref("toolkit.telemetry.bhrPing.enabled", false); // [FF57+] Background Hang Reporter + pref("toolkit.telemetry.firstShutdownPing.enabled", false); // [FF57+] + /* 0333: disable Telemetry Coverage + * [1] https://blog.mozilla.org/data/2018/08/20/effectively-measuring-search-in-firefox/ ***/ + pref("toolkit.telemetry.coverage.opt-out", true); // [HIDDEN PREF] + pref("toolkit.coverage.opt-out", true); // [FF64+] [HIDDEN PREF] + pref("toolkit.coverage.endpoint.base", ""); + /* 0335: disable Firefox Home (Activity Stream) telemetry ***/ + pref("browser.newtabpage.activity-stream.feeds.telemetry", false); + pref("browser.newtabpage.activity-stream.telemetry", false); + + /** STUDIES ***/ + /* 0340: disable Studies + * [SETTING] Privacy & Security>Firefox Data Collection & Use>Allow Firefox to install and run studies ***/ + pref("app.shield.optoutstudies.enabled", false); + /* 0341: disable Normandy/Shield [FF60+] + * Shield is a telemetry system that can push and test "recipes" + * [1] https://mozilla.github.io/normandy/ ***/ + pref("app.normandy.enabled", false); + pref("app.normandy.api_url", ""); + + /** CRASH REPORTS ***/ + /* 0350: disable Crash Reports ***/ + pref("breakpad.reportURL", ""); + pref("browser.tabs.crashReporting.sendReport", false); // [FF44+] + // pref("browser.crashReports.unsubmittedCheck.enabled", false); // [FF51+] [DEFAULT: false] + /* 0351: enforce no submission of backlogged Crash Reports [FF58+] + * [SETTING] Privacy & Security>Firefox Data Collection & Use>Allow Firefox to send backlogged crash reports ***/ + pref("browser.crashReports.unsubmittedCheck.autoSubmit2", false); // [DEFAULT: false] + + /** OTHER ***/ + /* 0360: disable Captive Portal detection + * [1] https://www.eff.org/deeplinks/2017/08/how-captive-portals-interfere-wireless-security-and-privacy ***/ + pref("captivedetect.canonicalURL", ""); + pref("network.captive-portal-service.enabled", false); // [FF52+] + /* 0361: disable Network Connectivity checks [FF65+] + * [1] https://bugzilla.mozilla.org/1460537 ***/ + pref("network.connectivity-service.enabled", false); + + /*** [SECTION 0400]: SAFE BROWSING (SB) + SB has taken many steps to preserve privacy. If required, 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("_user.js.parrot", "0400 syntax error: the parrot's passed on!"); + /* 0401: disable SB (Safe Browsing) + * [WARNING] Do this at your own risk! These are the master switches + * [SETTING] Privacy & Security>Security>... Block dangerous and deceptive content ***/ + // pref("browser.safebrowsing.malware.enabled", false); + // pref("browser.safebrowsing.phishing.enabled", false); + /* 0402: disable SB checks for downloads (both local lookups + remote) + * This is the master switch for the safebrowsing.downloads* prefs (0403, 0404) + * [SETTING] Privacy & Security>Security>... "Block dangerous downloads" ***/ + // pref("browser.safebrowsing.downloads.enabled", false); + /* 0403: 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 + * [SETUP-SECURITY] If you do not understand this, or you want this protection, then override this ***/ + pref("browser.safebrowsing.downloads.remote.enabled", false); + // pref("browser.safebrowsing.downloads.remote.url", ""); // Defense-in-depth + /* 0404: disable SB checks for unwanted software + * [SETTING] Privacy & Security>Security>... "Warn you about unwanted and uncommon software" ***/ + // pref("browser.safebrowsing.downloads.remote.block_potentially_unwanted", false); + // pref("browser.safebrowsing.downloads.remote.block_uncommon", false); + /* 0405: disable "ignore this warning" on SB warnings [FF45+] + * If clicked, it bypasses the block for that session. This is a means for admins to enforce SB + * [TEST] see https://github.com/arkenfox/user.js/wiki/Appendix-A-Test-Sites#-mozilla + * [1] https://bugzilla.mozilla.org/1226490 ***/ + // pref("browser.safebrowsing.allowOverride", false); + + /*** [SECTION 0600]: BLOCK IMPLICIT OUTBOUND [not explicitly asked for - e.g. clicked on] ***/ + pref("_user.js.parrot", "0600 syntax error: the parrot's no more!"); + /* 0601: disable link prefetching + * [1] https://developer.mozilla.org/docs/Web/HTTP/Link_prefetching_FAQ ***/ + pref("network.prefetch-next", false); + /* 0602: disable DNS prefetching + * [1] https://developer.mozilla.org/docs/Web/HTTP/Headers/X-DNS-Prefetch-Control ***/ + pref("network.dns.disablePrefetch", true); + pref("network.dns.disablePrefetchFromHTTPS", true); + /* 0603: disable predictor / prefetching ***/ + pref("network.predictor.enabled", false); + pref("network.predictor.enable-prefetch", false); // [FF48+] [DEFAULT: false] + /* 0604: disable link-mouseover opening connection to linked server + * [1] https://news.slashdot.org/story/15/08/14/2321202/how-to-quash-firefoxs-silent-requests ***/ + pref("network.http.speculative-parallel-limit", 0); + /* 0605: disable mousedown speculative connections on bookmarks and history [FF98+] ***/ + pref("browser.places.speculativeConnect.enabled", false); + /* 0610: enforce no "Hyperlink Auditing" (click tracking) + * [1] https://www.bleepingcomputer.com/news/software/major-browsers-to-prevent-disabling-of-click-tracking-privacy-risk/ ***/ + // pref("browser.send_pings", false); // [DEFAULT: false] + + /*** [SECTION 0700]: DNS / DoH / PROXY / SOCKS ***/ + pref("_user.js.parrot", "0700 syntax error: the parrot's given up the ghost!"); + /* 0702: 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 ***/ + pref("network.proxy.socks_remote_dns", true); + /* 0703: disable using UNC (Uniform Naming Convention) paths [FF61+] + * [SETUP-CHROME] Can break extensions for profiles on network shares + * [1] https://bugzilla.mozilla.org/1413868 ***/ + pref("network.file.disable_unc_paths", true); // [HIDDEN PREF] + /* 0704: 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. From FF87-117, by default only sftp was accepted + * [1] https://bugzilla.mozilla.org/1433507 + * [2] https://en.wikipedia.org/wiki/GVfs + * [3] https://en.wikipedia.org/wiki/GIO_(software) ***/ + pref("network.gio.supported-protocols", ""); // [HIDDEN PREF] [DEFAULT: "" FF118+] + /* 0705: disable proxy direct failover for system requests [FF91+] + * [WARNING] Default true is a security feature against malicious extensions [1] + * [SETUP-CHROME] If you use a proxy and you trust your extensions + * [1] https://blog.mozilla.org/security/2021/10/25/securing-the-proxy-api-for-firefox-add-ons/ ***/ + // pref("network.proxy.failover_direct", false); + /* 0706: disable proxy bypass for system request failures [FF95+] + * RemoteSettings, UpdateService, Telemetry [1] + * [WARNING] If false, this will break the fallback for some security features + * [SETUP-CHROME] If you use a proxy and you understand the security impact + * [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1732792,1733994,1733481 ***/ + // pref("network.proxy.allow_bypass", false); + /* 0710: enable DNS-over-HTTPS (DoH) [FF60+] + * 0=default, 2=increased (TRR (Trusted Recursive Resolver) first), 3=max (TRR only), 5=off (no rollout) + * see "doh-rollout.home-region": USA 2019, Canada 2021, Russia/Ukraine 2022 [3] + * [SETTING] Privacy & Security>DNS over HTTPS + * [1] https://hacks.mozilla.org/2018/05/a-cartoon-intro-to-dns-over-https/ + * [2] https://wiki.mozilla.org/Security/DOH-resolver-policy + * [3] https://support.mozilla.org/kb/firefox-dns-over-https + * [4] https://www.eff.org/deeplinks/2020/12/dns-doh-and-odoh-oh-my-year-review-2020 ***/ + // pref("network.trr.mode", 3); + /* 0712: set DoH provider + * The custom uri is the value shown when you "Choose provider>Custom>" + * [NOTE] If you USE custom then "network.trr.uri" should be set the same + * [SETTING] Privacy & Security>DNS over HTTPS>Increased/Max>Choose provider ***/ + // pref("network.trr.uri", "https://example.dns"); + // pref("network.trr.custom_uri", "https://example.dns"); + + /*** [SECTION 0800]: LOCATION BAR / SEARCH BAR / SUGGESTIONS / HISTORY / FORMS ***/ + pref("_user.js.parrot", "0800 syntax error: the parrot's ceased to be!"); + /* 0801: disable location bar making speculative connections [FF56+] + * [1] https://bugzilla.mozilla.org/1348275 ***/ + pref("browser.urlbar.speculativeConnect.enabled", false); + /* 0802: disable location bar contextual suggestions + * [NOTE] The UI is controlled by the .enabled pref + * [SETTING] Search>Address Bar>Suggestions from... + * [1] https://blog.mozilla.org/data/2021/09/15/data-and-firefox-suggest/ ***/ + pref("browser.urlbar.quicksuggest.enabled", false); // [FF92+] + pref("browser.urlbar.suggest.quicksuggest.nonsponsored", false); // [FF95+] + pref("browser.urlbar.suggest.quicksuggest.sponsored", false); // [FF92+] + /* 0803: disable live search suggestions + * [NOTE] Both must be true for live search to work in the location bar + * [SETUP-CHROME] Override these if you trust and use a privacy respecting search engine + * [SETTING] Search>Show search suggestions | Show search suggestions in address bar results ***/ + pref("browser.search.suggest.enabled", false); + pref("browser.urlbar.suggest.searches", false); + /* 0805: disable urlbar trending search suggestions [FF118+] + * [SETTING] Search>Search Suggestions>Show trending search suggestions (FF119) ***/ + pref("browser.urlbar.trending.featureGate", false); + /* 0806: disable urlbar suggestions ***/ + pref("browser.urlbar.addons.featureGate", false); // [FF115+] + pref("browser.urlbar.fakespot.featureGate", false); // [FF130+] [DEFAULT: false] + pref("browser.urlbar.mdn.featureGate", false); // [FF117+] [HIDDEN PREF] + pref("browser.urlbar.pocket.featureGate", false); // [FF116+] [DEFAULT: false] + pref("browser.urlbar.weather.featureGate", false); // [FF108+] [DEFAULT: false] + pref("browser.urlbar.yelp.featureGate", false); // [FF124+] + /* 0807: disable urlbar clipboard suggestions [FF118+] ***/ + // pref("browser.urlbar.clipboard.featureGate", false); + /* 0808: disable recent searches [FF120+] + * [NOTE] Recent searches are cleared with history (2811) + * [1] https://support.mozilla.org/kb/search-suggestions-firefox ***/ + // pref("browser.urlbar.recentsearches.featureGate", false); + /* 0810: disable search and form history + * [NOTE] We also clear formdata on exit (2811) + * [SETUP-WEB] Be aware that autocomplete form data can be read by third parties [1][2] + * [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 ***/ + pref("browser.formfill.enable", false); + /* 0815: disable tab-to-search [FF85+] + * Alternatively, you can exclude on a per-engine basis by unchecking them in Options>Search + * [SETTING] Search>Address Bar>When using the address bar, suggest>Search engines ***/ + // pref("browser.urlbar.suggest.engines", false); + /* 0820: disable coloring of visited links + * [SETUP-HARDEN] Bulk rapid history sniffing was mitigated in 2010 [1][2]. Slower and more expensive + * redraw timing attacks were largely mitigated in FF77+ [3]. Using RFP (4501) further hampers timing + * attacks. Don't forget clearing history on exit (2811). However, social engineering [2#limits][4][5] + * and advanced targeted timing attacks could still produce usable results + * [1] https://developer.mozilla.org/docs/Web/CSS/Privacy_and_the_:visited_selector + * [2] https://dbaron.org/mozilla/visited-privacy + * [3] https://bugzilla.mozilla.org/1632765 + * [4] https://earthlng.github.io/testpages/visited_links.html (see github wiki APPENDIX A on how to use) + * [5] https://lcamtuf.blogspot.com/2016/08/css-mix-blend-mode-is-bad-for-keeping.html ***/ + pref("layout.css.visited_links_enabled", false); //BRACE-UNCOMMENTED: nice to have disabled + /* 0830: enable separate default search engine in Private Windows and its UI setting + * [SETTING] Search>Default Search Engine>Choose a different default search engine for Private Windows only ***/ + pref("browser.search.separatePrivateDefault", true); // [FF70+] + pref("browser.search.separatePrivateDefault.ui.enabled", true); // [FF71+] + + /*** [SECTION 0900]: PASSWORDS + [1] https://support.mozilla.org/kb/use-primary-password-protect-stored-logins-and-pas + ***/ + pref("_user.js.parrot", "0900 syntax error: the parrot's expired!"); + /* 0903: disable auto-filling username & password form fields + * can leak in cross-site forms *and* be spoofed + * [NOTE] Username & password is still available when you enter the field + * [SETTING] Privacy & Security>Logins and Passwords>Autofill logins and passwords + * [1] https://freedom-to-tinker.com/2017/12/27/no-boundaries-for-user-identities-web-trackers-exploit-browser-login-managers/ + * [2] https://homes.esat.kuleuven.be/~asenol/leaky-forms/ ***/ + pref("signon.autofillForms", false); + /* 0904: disable formless login capture for Password Manager [FF51+] ***/ + pref("signon.formlessCapture.enabled", false); + /* 0905: limit (or disable) HTTP authentication credentials dialogs triggered by sub-resources [FF41+] + * 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) ***/ + pref("network.auth.subresource-http-auth-allow", 1); + /* 0906: enforce no automatic authentication on Microsoft sites [FF91+] [WINDOWS 10+] + * [SETTING] Privacy & Security>Logins and Passwords>Allow Windows single sign-on for... + * [1] https://support.mozilla.org/kb/windows-sso ***/ + // pref("network.http.windows-sso.enabled", false); // [DEFAULT: false] + /* 0907: enforce no automatic authentication on Microsoft sites [FF131+] [MAC] + * On macOS, SSO only works on corporate devices ***/ + // pref("network.http.microsoft-entra-sso.enabled", false); // [DEFAULT: false] + + /*** [SECTION 1000]: DISK AVOIDANCE ***/ + pref("_user.js.parrot", "1000 syntax error: the parrot's gone to meet 'is maker!"); + /* 1001: disable disk cache + * [NOTE] We also clear cache on exit (2811) + * [SETUP-CHROME] If you think disk cache helps perf, then feel free to override this ***/ + // pref("browser.cache.disk.enable", false); //BRACE-COMMENTED: caches are important, bandwidth available can be limited (data plans or slow network) + /* 1002: set media cache in Private Browsing to in-memory and increase its maximum size + * [NOTE] MSE (Media Source Extensions) are already stored in-memory in PB ***/ + pref("browser.privatebrowsing.forceMediaMemoryCache", true); // [FF75+] + pref("media.memory_cache_max_size", 65536); + /* 1003: disable storing extra session data [SETUP-CHROME] + * define on which sites to save extra session data such as form content, cookies and POST data + * 0=everywhere, 1=unencrypted sites, 2=nowhere ***/ + pref("browser.sessionstore.privacy_level", 2); + /* 1005: disable automatic Firefox start and session restore after reboot [FF62+] [WINDOWS] + * [1] https://bugzilla.mozilla.org/603903 ***/ + pref("toolkit.winRegisterApplicationRestart", false); + /* 1006: disable favicons in shortcuts [WINDOWS] + * URL shortcuts use a cached randomly named .ico file which is stored in your + * profile/shortcutCache directory. The .ico remains after the shortcut is deleted + * If set to false then the shortcuts use a generic Firefox icon ***/ + pref("browser.shell.shortcutFavicons", false); + + /*** [SECTION 1200]: HTTPS (SSL/TLS / OCSP / CERTS / HPKP) + Your cipher and other settings can be used in server side fingerprinting + [TEST] https://www.ssllabs.com/ssltest/viewMyClient.html + [TEST] https://browserleaks.com/ssl + [TEST] https://ja3er.com/ + [1] https://www.securityartwork.es/2017/02/02/tls-client-fingerprinting-with-bro/ + ***/ + pref("_user.js.parrot", "1200 syntax error: the parrot's a stiff!"); + /** SSL (Secure Sockets Layer) / TLS (Transport Layer Security) ***/ + /* 1201: require safe negotiation + * Blocks connections to servers that don't support RFC 5746 [2] as they're potentially vulnerable to a + * MiTM attack [3]. A server without RFC 5746 can be safe from the attack if it disables renegotiations + * but the problem is that the browser can't know that. Setting this pref to true is the only way for the + * browser to ensure there will be no unsafe renegotiations on the channel between the browser and the server + * [SETUP-WEB] SSL_ERROR_UNSAFE_NEGOTIATION: is it worth overriding this for that one site? + * [STATS] SSL Labs (May 2024) reports over 99.7% of top sites have secure renegotiation [4] + * [1] https://wiki.mozilla.org/Security:Renegotiation + * [2] https://datatracker.ietf.org/doc/html/rfc5746 + * [3] https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2009-3555 + * [4] https://www.ssllabs.com/ssl-pulse/ ***/ + pref("security.ssl.require_safe_negotiation", true); + /* 1206: disable TLS1.3 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/ ***/ + pref("security.tls.enable_0rtt_data", false); + + /** OCSP (Online Certificate Status Protocol) + [1] https://scotthelme.co.uk/revocation-is-broken/ + [2] https://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox/ + ***/ + /* 1211: enforce OCSP fetching to confirm current validity of certificates + * 0=disabled, 1=enabled (default), 2=enabled for EV certificates only + * OCSP (non-stapled) leaks information about the sites you visit to the CA (cert authority) + * It's a trade-off between security (checking) and privacy (leaking info to the CA) + * [NOTE] This pref only controls OCSP fetching and does not affect OCSP stapling + * [SETTING] Privacy & Security>Security>Certificates>Query OCSP responder servers... + * [1] https://en.wikipedia.org/wiki/Ocsp ***/ + pref("security.OCSP.enabled", 1); // [DEFAULT: 1] + /* 1212: set OCSP fetch failures (non-stapled, see 1211) to hard-fail + * [SETUP-WEB] SEC_ERROR_OCSP_SERVER_ERROR + * When a CA cannot be reached to validate a cert, Firefox just continues the connection (=soft-fail) + * Setting this pref to true tells Firefox to instead terminate the connection (=hard-fail) + * It is pointless to soft-fail when an OCSP fetch fails: you cannot confirm a cert is still valid (it + * could have been revoked) and/or you could be under attack (e.g. malicious blocking of OCSP servers) + * [1] https://blog.mozilla.org/security/2013/07/29/ocsp-stapling-in-firefox/ + * [2] https://www.imperialviolet.org/2014/04/19/revchecking.html ***/ + pref("security.OCSP.require", true); + + /** CERTS / HPKP (HTTP Public Key Pinning) ***/ + /* 1223: enable strict PKP (Public Key Pinning) + * 0=disabled, 1=allow user MiTM (default; such as your antivirus), 2=strict + * [SETUP-WEB] MOZILLA_PKIX_ERROR_KEY_PINNING_FAILURE ***/ + pref("security.cert_pinning.enforcement_level", 2); + /* 1224: enable CRLite [FF73+] + * 0 = disabled + * 1 = consult CRLite but only collect telemetry + * 2 = consult CRLite and enforce both "Revoked" and "Not Revoked" results + * 3 = consult CRLite and enforce "Not Revoked" results, but defer to OCSP for "Revoked" (default) + * [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1429800,1670985,1753071 + * [2] https://blog.mozilla.org/security/tag/crlite/ ***/ + pref("security.remote_settings.crlite_filters.enabled", true); + pref("security.pki.crlite_mode", 2); + + /** MIXED CONTENT ***/ + /* 1241: disable insecure passive content (such as images) on https pages ***/ + // pref("security.mixed_content.block_display_content", true); // Defense-in-depth (see 1244) + /* 1244: enable HTTPS-Only mode in all windows + * When the top-level is HTTPS, insecure subresources are also upgraded (silent fail) + * [SETTING] to add site exceptions: Padlock>HTTPS-Only mode>On (after "Continue to HTTP Site") + * [SETTING] Privacy & Security>HTTPS-Only Mode (and manage exceptions) + * [TEST] http://example.com [upgrade] + * [TEST] http://httpforever.com/ | http://http.rip [no upgrade] ***/ + pref("dom.security.https_only_mode", true); // [FF76+] + // pref("dom.security.https_only_mode_pbm", true); // [FF80+] + /* 1245: enable HTTPS-Only mode for local resources [FF77+] ***/ + // pref("dom.security.https_only_mode.upgrade_local", true); + /* 1246: disable HTTP background requests [FF82+] + * When attempting to upgrade, if the server doesn't respond within 3 seconds, Firefox sends + * a top-level HTTP request without path in order to check if the server supports HTTPS or not + * This is done to avoid waiting for a timeout which takes 90 seconds + * [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1642387,1660945 ***/ + pref("dom.security.https_only_mode_send_http_background_request", false); + + /** UI (User Interface) ***/ + /* 1270: display warning on the padlock for "broken security" (if 1201 is false) + * Bug: warning padlock not indicated for subresources on a secure page! [2] + * [1] https://wiki.mozilla.org/Security:Renegotiation + * [2] https://bugzilla.mozilla.org/1353705 ***/ + pref("security.ssl.treat_unsafe_negotiation_as_broken", true); + /* 1272: display advanced information on Insecure Connection warning pages + * only works when it's possible to add an exception + * i.e. it doesn't work for HSTS discrepancies (https://subdomain.preloaded-hsts.badssl.com/) + * [TEST] https://expired.badssl.com/ ***/ + pref("browser.xul.error_pages.expert_bad_cert", true); + + /*** [SECTION 1600]: REFERERS + full URI: https://example.com:8888/foo/bar.html?id=1234 + scheme+host+port+path: https://example.com:8888/foo/bar.html + scheme+host+port: https://example.com:8888 + [1] https://feeding.cloud.geek.nz/posts/tweaking-referrer-for-privacy-in-firefox/ + ***/ + pref("_user.js.parrot", "1600 syntax error: the parrot rests in peace!"); + /* 1602: control the amount of cross-origin information to send [FF52+] + * 0=send full URI (default), 1=scheme+host+port+path, 2=scheme+host+port ***/ + pref("network.http.referer.XOriginTrimmingPolicy", 2); + + /*** [SECTION 1700]: CONTAINERS ***/ + pref("_user.js.parrot", "1700 syntax error: the parrot's bit the dust!"); + /* 1701: enable Container Tabs and its UI setting [FF50+] + * [SETTING] General>Tabs>Enable Container Tabs + * https://wiki.mozilla.org/Security/Contextual_Identity_Project/Containers ***/ + pref("privacy.userContext.enabled", true); + pref("privacy.userContext.ui.enabled", true); + /* 1702: 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 ***/ + // pref("privacy.userContext.newTabContainerOnLeftClick.enabled", true); + /* 1703: set external links to open in site-specific containers [FF123+] + * [SETUP-WEB] Depending on your container extension(s) and their settings + * true=Firefox will not choose a container (so your extension can) + * false=Firefox will choose the container/no-container (default) + * [1] https://bugzilla.mozilla.org/1874599 ***/ + // pref("browser.link.force_default_user_context_id_for_external_opens", true); + + /*** [SECTION 2000]: PLUGINS / MEDIA / WEBRTC ***/ + pref("_user.js.parrot", "2000 syntax error: the parrot's snuffed it!"); + /* 2002: force WebRTC inside the proxy [FF70+] ***/ + pref("media.peerconnection.ice.proxy_only_if_behind_proxy", true); + /* 2003: 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/docs/Web/API/RTCIceCandidate + * [2] https://wiki.mozilla.org/Media/WebRTC/Privacy ***/ + pref("media.peerconnection.ice.default_address_only", true); + /* 2004: 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 ***/ + // pref("media.peerconnection.ice.no_host", true); + /* 2020: disable GMP (Gecko Media Plugins) + * [1] https://wiki.mozilla.org/GeckoMediaPlugins ***/ + // pref("media.gmp-provider.enabled", false); + + /*** [SECTION 2400]: DOM (DOCUMENT OBJECT MODEL) ***/ + pref("_user.js.parrot", "2400 syntax error: the parrot's kicked the bucket!"); + /* 2402: prevent scripts from moving and resizing open windows ***/ + pref("dom.disable_window_move_resize", true); + + /*** [SECTION 2600]: MISCELLANEOUS ***/ + pref("_user.js.parrot", "2600 syntax error: the parrot's run down the curtain!"); + /* 2603: remove temp files opened from non-PB windows with an external application + * [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=302433,1738574 ***/ + pref("browser.download.start_downloads_in_tmp_dir", true); // [FF102+] + pref("browser.helperApps.deleteTempFileOnExit", true); + /* 2606: disable UITour backend so there is no chance that a remote page can use it ***/ + pref("browser.uitour.enabled", false); + // pref("browser.uitour.url", ""); // Defense-in-depth + /* 2608: reset remote debugging to disabled + * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/16222 ***/ + pref("devtools.debugger.remote-enabled", false); // [DEFAULT: false] + /* 2615: disable websites overriding Firefox's keyboard shortcuts [FF58+] + * 0 (default) or 1=allow, 2=block + * [SETTING] to add site exceptions: Ctrl+I>Permissions>Override Keyboard Shortcuts ***/ + // pref("permissions.default.shortcuts", 2); + /* 2616: remove special permissions for certain mozilla domains [FF35+] + * [1] resource://app/defaults/permissions ***/ + pref("permissions.manager.defaultsUrl", ""); + /* 2619: use Punycode in Internationalized Domain Names to eliminate possible spoofing + * [SETUP-WEB] 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] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=punycode+firefox + * [4] https://www.xudongz.com/blog/2017/idn-phishing/ ***/ + pref("network.IDN_show_punycode", true); + /* 2620: enforce PDFJS, disable PDFJS scripting + * This setting controls if the option "Display in Firefox" is available in the setting below + * and by effect controls whether PDFs are handled in-browser or externally ("Ask" or "Open With") + * [WHY] pdfjs is lightweight, open source, and secure: the last exploit was June 2015 [1] + * It doesn't break "state separation" of browser content (by not sharing with OS, independent apps). + * It maintains disk avoidance and application data isolation. It's convenient. You can still save to disk. + * [NOTE] JS can still force a pdf to open in-browser by bundling its own code + * [SETUP-CHROME] You may prefer a different pdf reader for security/workflow reasons + * [SETTING] General>Applications>Portable Document Format (PDF) + * [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=pdf.js+firefox ***/ + pref("pdfjs.disabled", false); // [DEFAULT: false] + pref("pdfjs.enableScripting", false); // [FF86+] + /* 2624: disable middle click on new tab button opening URLs or searches using clipboard [FF115+] */ + pref("browser.tabs.searchclipboardfor.middleclick", false); // [DEFAULT: false NON-LINUX] + /* 2630: disable content analysis by DLP (Data Loss Prevention) agents + * DLP agents are background processes on managed computers that allow enterprises to monitor locally running + * applications for data exfiltration events, which they can allow/block based on customer defined DLP policies. + * 0=Block all requests, 1=Warn on all requests (which lets the user decide), 2=Allow all requests + * [1] https://github.com/chromium/content_analysis_sdk */ + pref("browser.contentanalysis.enabled", false); // [FF121+] [DEFAULT: false] + pref("browser.contentanalysis.default_result", 0); // [FF127+] [DEFAULT: 0] + + /** DOWNLOADS ***/ + /* 2651: enable user interaction for security by always asking where to download + * [SETUP-CHROME] On Android this blocks longtapping and saving images + * [SETTING] General>Downloads>Always ask you where to save files ***/ + pref("browser.download.useDownloadDir", false); //MULL-COMMENT_ME: breakage, see note above + /* 2652: disable downloads panel opening on every download [FF96+] ***/ + pref("browser.download.alwaysOpenPanel", false); + /* 2653: disable adding downloads to the system's "recent documents" list ***/ + pref("browser.download.manager.addToRecentDocs", false); + /* 2654: enable user interaction for security by always asking how to handle new mimetypes [FF101+] + * [SETTING] General>Files and Applications>What should Firefox do with other files ***/ + pref("browser.download.always_ask_before_handling_new_types", true); + + /** EXTENSIONS ***/ + /* 2660: limit allowed extension directories + * 1=profile, 2=user, 4=application, 8=system, 16=temporary, 31=all + * The pref value represents the sum: e.g. 5 would be profile and application directories + * [SETUP-CHROME] Breaks usage of files which are installed outside allowed directories + * [1] https://archive.is/DYjAM ***/ + // pref("extensions.enabledScopes", 5); // [HIDDEN PREF] //BRACE-COMMENTED: brace-installer-base adds system packages for add-ons (uBlock Origin) + // pref("extensions.autoDisableScopes", 15); // [DEFAULT: 15] + /* 2661: disable bypassing 3rd party extension install prompts [FF82+] + * [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1659530,1681331 ***/ + pref("extensions.postDownloadThirdPartyPrompt", false); + /* 2662: disable webextension restrictions on certain mozilla domains (you also need 4503) [FF60+] + * [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1384330,1406795,1415644,1453988 ***/ + // pref("extensions.webextensions.restrictedDomains", ""); + + /*** [SECTION 2700]: ETP (ENHANCED TRACKING PROTECTION) ***/ + pref("_user.js.parrot", "2700 syntax error: the parrot's joined the bleedin' choir invisible!"); + /* 2701: enable ETP Strict Mode [FF86+] + * ETP Strict Mode enables Total Cookie Protection (TCP) + * [NOTE] Adding site exceptions disables all ETP protections for that site and increases the risk of + * cross-site state tracking e.g. exceptions for SiteA and SiteB means PartyC on both sites is shared + * [1] https://blog.mozilla.org/security/2021/02/23/total-cookie-protection/ + * [SETTING] to add site exceptions: Urlbar>ETP Shield + * [SETTING] to manage site exceptions: Options>Privacy & Security>Enhanced Tracking Protection>Manage Exceptions ***/ + pref("browser.contentblocking.category", "strict"); // [HIDDEN PREF] + /* 2702: disable ETP web compat features [FF93+] + * [SETUP-HARDEN] Includes skip lists, heuristics (SmartBlock) and automatic grants + * Opener and redirect heuristics are granted for 30 days, see [3] + * [1] https://blog.mozilla.org/security/2021/07/13/smartblock-v2/ + * [2] https://hg.mozilla.org/mozilla-central/rev/e5483fd469ab#l4.12 + * [3] https://developer.mozilla.org/docs/Web/Privacy/State_Partitioning#storage_access_heuristics ***/ + // pref("privacy.antitracking.enableWebcompat", false); + + /*** [SECTION 2800]: SHUTDOWN & SANITIZING ***/ + pref("_user.js.parrot", "2800 syntax error: the parrot's bleedin' demised!"); + /* 2810: enable Firefox to clear items on shutdown + * [NOTE] In FF129+ clearing "siteSettings" on shutdown (2811), or manually via site data (2820) and + * via history (2830), will no longer remove sanitize on shutdown "cookie and site data" site exceptions (2815) + * [SETTING] Privacy & Security>History>Custom Settings>Clear history when Firefox closes | Settings ***/ + pref("privacy.sanitize.sanitizeOnShutdown", false); //BRACE-DISABLED: usability, this ain't Tor Browser + + /** SANITIZE ON SHUTDOWN: IGNORES "ALLOW" SITE EXCEPTIONS | v2 migration is FF128+ ***/ + /* 2811: set/enforce what items to clear on shutdown (if 2810 is true) [SETUP-CHROME] + * [NOTE] If "history" is true, downloads will also be cleared ***/ + pref("privacy.clearOnShutdown.cache", true); // [DEFAULT: true] + pref("privacy.clearOnShutdown_v2.cache", true); // [FF128+] [DEFAULT: true] + pref("privacy.clearOnShutdown.downloads", true); // [DEFAULT: true] + pref("privacy.clearOnShutdown.formdata", true); // [DEFAULT: true] + pref("privacy.clearOnShutdown.history", true); // [DEFAULT: true] + pref("privacy.clearOnShutdown_v2.historyFormDataAndDownloads", true); // [FF128+] [DEFAULT: true] + // pref("privacy.clearOnShutdown.siteSettings", false); // [DEFAULT: false] + // pref("privacy.clearOnShutdown_v2.siteSettings", false); // [FF128+] [DEFAULT: false] + /* 2812: set Session Restore to clear on shutdown (if 2810 is true) [FF34+] + * [NOTE] Not needed if Session Restore is not used (0102) or it is already cleared with history (2811) + * [NOTE] If true, this prevents resuming from crashes (also see 5008) ***/ + // pref("privacy.clearOnShutdown.openWindows", true); + + /** SANITIZE ON SHUTDOWN: RESPECTS "ALLOW" SITE EXCEPTIONS FF103+ | v2 migration is FF128+ ***/ + /* 2815: set "Cookies" and "Site Data" to clear on shutdown (if 2810 is true) [SETUP-CHROME] + * [NOTE] Exceptions: A "cookie" permission also controls "offlineApps" (see note below). For cross-domain logins, + * add exceptions for both sites e.g. https://www.youtube.com (site) + https://accounts.google.com (single sign on) + * [NOTE] "offlineApps": Offline Website Data: localStorage, service worker cache, QuotaManager (IndexedDB, asm-cache) + * [NOTE] "sessions": Active Logins (has no site exceptions): refers to HTTP Basic Authentication [1], not logins via cookies + * [WARNING] Be selective with what sites you "Allow", as they also disable partitioning (1767271) + * [SETTING] to add site exceptions: Ctrl+I>Permissions>Cookies>Allow (when on the website in question) + * [SETTING] to manage site exceptions: Options>Privacy & Security>Permissions>Settings + * [1] https://en.wikipedia.org/wiki/Basic_access_authentication ***/ + pref("privacy.clearOnShutdown.cookies", true); // Cookies + pref("privacy.clearOnShutdown.offlineApps", true); // Site Data + pref("privacy.clearOnShutdown.sessions", true); // Active Logins [DEFAULT: true] + pref("privacy.clearOnShutdown_v2.cookiesAndStorage", true); // Cookies, Site Data, Active Logins [FF128+] + + /** SANITIZE SITE DATA: IGNORES "ALLOW" SITE EXCEPTIONS ***/ + /* 2820: set manual "Clear Data" items [SETUP-CHROME] [FF128+] + * Firefox remembers your last choices. This will reset them when you start Firefox + * [SETTING] Privacy & Security>Browser Privacy>Cookies and Site Data>Clear Data ***/ + pref("privacy.clearSiteData.cache", true); + pref("privacy.clearSiteData.cookiesAndStorage", false); // keep false until it respects "allow" site exceptions + pref("privacy.clearSiteData.historyFormDataAndDownloads", true); + // pref("privacy.clearSiteData.siteSettings", false); + + /** SANITIZE HISTORY: IGNORES "ALLOW" SITE EXCEPTIONS | clearHistory migration is FF128+ ***/ + /* 2830: set manual "Clear History" items, also via Ctrl-Shift-Del [SETUP-CHROME] + * Firefox remembers your last choices. This will reset them when you start Firefox + * [NOTE] Regardless of what you set "downloads" to, as soon as the dialog + * for "Clear Recent History" is opened, it is synced to the same as "history" + * [SETTING] Privacy & Security>History>Custom Settings>Clear History ***/ + pref("privacy.cpd.cache", true); // [DEFAULT: true] + pref("privacy.clearHistory.cache", true); + pref("privacy.cpd.formdata", true); // [DEFAULT: true] + pref("privacy.cpd.history", true); // [DEFAULT: true] + // pref("privacy.cpd.downloads", true); // not used, see note above + pref("privacy.clearHistory.historyFormDataAndDownloads", true); + pref("privacy.cpd.cookies", false); + pref("privacy.cpd.sessions", true); // [DEFAULT: true] + pref("privacy.cpd.offlineApps", false); // [DEFAULT: false] + pref("privacy.clearHistory.cookiesAndStorage", false); + // pref("privacy.cpd.openWindows", false); // Session Restore + // pref("privacy.cpd.passwords", false); + // pref("privacy.cpd.siteSettings", false); + // pref("privacy.clearHistory.siteSettings", false); + + /** SANITIZE MANUAL: TIMERANGE ***/ + /* 2840: set "Time range to clear" for "Clear Data" (2820) and "Clear History" (2830) + * 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 + * [NOTE] Values 5 (last 5 minutes) and 6 (last 24 hours) are not listed in the dropdown, + * which will display a blank value, and are not guaranteed to work ***/ + pref("privacy.sanitize.timeSpan", 0); + + /*** [SECTION 4000]: FPP (fingerprintingProtection) + RFP (4501) overrides FPP + + In FF118+ FPP is on by default in private windows (4001) and in FF119+ is controlled + by ETP (2701). FPP will also use Remote Services in future to relax FPP protections + on a per site basis for compatibility (4004). + + https://searchfox.org/mozilla-central/source/toolkit/components/resistfingerprinting/RFPTargetsDefault.inc + + [NOTE] RFPTargets + granular overrides are somewhat experimental and may produce unexpected results + - e.g. FrameRate can only be controlled per process, not per origin + + 1826408 - restrict fonts to system (kBaseFonts + kLangPackFonts) (Windows, Mac, some Linux) + https://searchfox.org/mozilla-central/search?path=StandardFonts*.inc + 1858181 - subtly randomize canvas per eTLD+1, per session and per window-mode (FF120+) + ***/ + pref("_user.js.parrot", "4000 syntax error: the parrot's bereft of life!"); + /* 4001: enable FPP in PB mode [FF114+] + * [NOTE] In FF119+, FPP for all modes (7016) is enabled with ETP Strict (2701) ***/ + // pref("privacy.fingerprintingProtection.pbmode", true); // [DEFAULT: true FF118+] + /* 4002: set global FPP overrides [FF114+] + * uses "RFPTargets" [1] which despite the name these are not used by RFP + * e.g. "+AllTargets,-CSSPrefersColorScheme,-JSDateTimeUTC" = all targets but allow prefers-color-scheme and do not change timezone + * e.g. "-AllTargets,+CanvasRandomization,+JSDateTimeUTC" = no targets but do use FPP canvas and change timezone + * [NOTE] Not supported by arkenfox. Either use RFP or FPP at defaults + * [1] https://searchfox.org/mozilla-central/source/toolkit/components/resistfingerprinting/RFPTargets.inc ***/ + // pref("privacy.fingerprintingProtection.overrides", ""); + /* 4003: set granular FPP overrides + * JSON format: e.g."[{\"firstPartyDomain\": \"netflix.com\", \"overrides\": \"-CanvasRandomization,-FrameRate,\"}]" + * [NOTE] Not supported by arkenfox. Either use RFP or FPP at defaults ***/ + // pref("privacy.fingerprintingProtection.granularOverrides", ""); + /* 4004: disable remote FPP overrides [FF127+] ***/ + // pref("privacy.fingerprintingProtection.remoteOverrides.enabled", false); + + /*** [SECTION 4500]: OPTIONAL RFP (resistFingerprinting) + RFP overrides FPP (4000) + + FF128+ Arkenfox by default uses FPP (automatically enabled with ETP Strict). For most people + this is all you need. To use RFP instead, add RFP (4501) to your overrides, and optionally + add letterboxing (4504), spoof_english (4506), and webgl (4520). + + RFP is an all-or-nothing buy in: you cannot pick and choose what parts you want + [TEST] https://arkenfox.github.io/TZP/tzp.html + + [WARNING] DO NOT USE extensions to alter RFP protected metrics + + 418986 - limit window.screen & CSS media queries (FF41) + 1360039 - spoof navigator.hardwareConcurrency as 2 (FF55) + FF56 + 1333651 - spoof User Agent & Navigator API + version: android version spoofed as ESR (FF119 or lower) + OS: JS spoofed as Windows 10, OS 10.15, Android 10, or Linux | HTTP Headers spoofed as Windows or Android + 1369319 - disable device sensor API + 1369357 - disable site specific zoom + 1337161 - hide gamepads from content + 1372072 - spoof network information API as "unknown" when dom.netinfo.enabled = true + 1333641 - reduce fingerprinting in WebSpeech API + FF57 + 1369309 - spoof media statistics + 1382499 - reduce screen co-ordinate fingerprinting in Touch API + 1217290 & 1409677 - enable some fingerprinting resistance for WebGL + 1354633 - limit MediaError.message to a whitelist + FF58+ + 1372073 - spoof/block fingerprinting in MediaDevices API (FF59) + Spoof: enumerate devices as one "Internal Camera" and one "Internal Microphone" + Block: suppresses the ondevicechange event + 1039069 - warn when language prefs are not set to "en*" (FF59) + 1222285 & 1433592 - spoof keyboard events and suppress keyboard modifier events (FF59) + Spoofing mimics the content language of the document. Currently it only supports en-US. + Modifier events suppressed are SHIFT and both ALT keys. Chrome is not affected. + 1337157 - disable WebGL debug renderer info (FF60) + 1459089 - disable OS locale in HTTP Accept-Language headers (ANDROID) (FF62) + 1479239 - return "no-preference" with prefers-reduced-motion (FF63) + 1363508 & 1826051 - spoof/suppress Pointer Events (FF64, FF132) + 1492766 - spoof pointerEvent.pointerid (FF65) + 1485266 - disable exposure of system colors to CSS or canvas (FF67) + 1494034 - return "light" with prefers-color-scheme (FF67) + 1564422 - spoof audioContext outputLatency (FF70) + 1595823 - return audioContext sampleRate as 44100 (FF72) + 1607316 - spoof pointer as coarse and hover as none (ANDROID) (FF74) + 1621433 - randomize canvas (previously FF58+ returned an all-white canvas) (FF78) + 1506364 - return "no-preference" with prefers-contrast (FF80) + 1653987 - limit font visibility to bundled and "Base Fonts" (Windows, Mac, some Linux) (FF80) + 1461454 - spoof smooth=true and powerEfficient=false for supported media in MediaCapabilities (FF82) + 531915 - use fdlibm's sin, cos and tan in jsmath (FF93, ESR91.1) + 1756280 - enforce navigator.pdfViewerEnabled as true and plugins/mimeTypes as hard-coded values (FF100-115) + 1692609 - reduce JS timing precision to 16.67ms (previously FF55+ was 100ms) (FF102) + 1422237 - return "srgb" with color-gamut (FF110) + 1794628 - return "none" with inverted-colors (FF114) + 1787790 - normalize system fonts (FF128) + 1835987 - spoof timezone as Atlantic/Reykjavik (previously FF55+ was UTC) (FF128) + 1834307 - always use smooth scrolling (FF132) + 1918202 - spoof screen orientation based on spoofed screen size and platform (FF132) + previously it always returned landscape-primary and an angle of 0 (FF50+) + 1390465 - load all subtitles in WebVTT (Video Text Tracks) (FF133) + 1873382 - make spoofed devicePixelRatio and CSS media queries match (FF133) + previously FF41+ devicePixelRatio was hardcoded as 1 and FF127+ as 2 + previously FF41+ CSS media queries were spoofed as zoom level at a devicePixelRatio of 1 + ***/ + pref("_user.js.parrot", "4500 syntax error: the parrot's popped 'is clogs"); + /* 4501: enable RFP + * [NOTE] pbmode applies if true and the original pref is false + * [SETUP-WEB] RFP can cause some website breakage: mainly canvas, use a canvas site exception via the urlbar. + * RFP also has a few side effects: mainly that timezone is GMT, and websites will prefer light theme ***/ + pref("privacy.resistFingerprinting", true); // [FF41+] //BRACE-UNCOMMENTED + // pref("privacy.resistFingerprinting.pbmode", true); // [FF114+] + /* 4502: set RFP new window size max rounded 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 ***/ + pref("privacy.window.maxInnerWidth", 1600); + pref("privacy.window.maxInnerHeight", 900); + /* 4503: disable mozAddonManager Web API [FF57+] + * [NOTE] To allow extensions to work on AMO, you also need 2662 + * [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1384330,1406795,1415644,1453988 ***/ + pref("privacy.resistFingerprinting.block_mozAddonManager", true); //MULL-MODIFY_ME: set to false to unbreak AMO + /* 4504: enable letterboxing [FF67+] + * Dynamically resizes the inner window by applying margins in stepped ranges [2] + * If you use the dimension pref, then it will only apply those resolutions. + * The format is "width1xheight1, width2xheight2, ..." (e.g. "800x600, 1000x1000") + * [SETUP-WEB] This is independent of RFP (4501). If you're not using RFP, or you are but + * dislike the margins, then flip this pref, keeping in mind that it is effectively fingerprintable + * [WARNING] DO NOT USE: the dimension pref is only meant for testing + * [1] https://bugzilla.mozilla.org/1407366 + * [2] https://hg.mozilla.org/mozilla-central/rev/7211cb4f58ff#l5.13 ***/ + pref("privacy.resistFingerprinting.letterboxing", true); // [HIDDEN PREF] //BRACE-UNCOMMENTED + // pref("privacy.resistFingerprinting.letterboxing.dimensions", ""); // [HIDDEN PREF] + /* 4505: disable RFP by domain [FF91+] + * [NOTE] Working examples: "arkenfox.github.io", "*github.io" + * Non-working examples: "https://arkenfox.github.io", "github.io", "*arkenfox.github.io" ***/ + // pref("privacy.resistFingerprinting.exemptedDomains", "*.example.invalid"); + /* 4506: disable RFP spoof english prompt [FF59+] + * 0=prompt, 1=disabled, 2=enabled + * [NOTE] When changing from value 2, preferred languages ('intl.accept_languages') is not reset. + * [SETUP-WEB] when enabled, sets 'en-US, en' for displaying pages and 'en-US' as locale. + * [SETTING] General>Language>Choose your preferred language for displaying pages>Choose>Request English... ***/ + pref("privacy.spoof_english", 1); + /* 4510: disable using system colors + * [SETTING] General>Language and Appearance>Fonts and Colors>Colors>Use system colors ***/ + pref("browser.display.use_system_colors", false); // [DEFAULT: false NON-WINDOWS] + /* 4511: disable using system accent colors ***/ + pref("widget.non-native-theme.use-theme-accent", false); // [DEFAULT: false WINDOWS] + /* 4512: enforce links targeting new windows to open in a new tab instead + * 1=most recent window or tab, 2=new window, 3=new tab + * Stops malicious window sizes and some screen resolution leaks. + * You can still right-click a link and open in a new window + * [SETTING] General>Tabs>Open links in tabs instead of new windows + * [TEST] https://arkenfox.github.io/TZP/tzp.html#screen + * [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/9881 ***/ + pref("browser.link.open_newwindow", 3); // [DEFAULT: 3] + /* 4513: set all open window methods to abide by "browser.link.open_newwindow" (4512) + * [1] https://searchfox.org/mozilla-central/source/dom/tests/browser/browser_test_new_window_from_content.js ***/ + pref("browser.link.open_newwindow.restriction", 0); + /* 4520: disable WebGL (Web Graphics Library) ***/ + pref("webgl.disabled", true); //BRACE-UNCOMMENTED + + /*** [SECTION 5000]: OPTIONAL OPSEC + Disk avoidance, application data isolation, eyeballs... + ***/ + pref("_user.js.parrot", "5000 syntax error: the parrot's taken 'is last bow"); + /* 5001: start Firefox in PB (Private Browsing) mode + * [NOTE] In this mode all windows are "private windows" and the PB mode icon is not displayed + * [NOTE] The P in PB mode can be misleading: it means no "persistent" disk state such as history, + * caches, searches, cookies, localStorage, IndexedDB etc (which you can achieve in normal mode). + * In fact, PB mode limits or removes the ability to control some of these, and you need to quit + * Firefox to clear them. PB is best used as a one off window (Menu>New Private Window) to provide + * a temporary self-contained new session. Close all private windows to clear the PB session. + * [SETTING] Privacy & Security>History>Custom Settings>Always use private browsing mode + * [1] https://wiki.mozilla.org/Private_Browsing + * [2] https://support.mozilla.org/kb/common-myths-about-private-browsing ***/ + // pref("browser.privatebrowsing.autostart", true); + /* 5002: disable memory cache + * capacity: -1=determine dynamically (default), 0=none, n=memory capacity in kibibytes ***/ + // pref("browser.cache.memory.enable", false); + // pref("browser.cache.memory.capacity", 0); + /* 5003: disable saving passwords + * [NOTE] This does not clear any passwords already saved + * [SETTING] Privacy & Security>Logins and Passwords>Ask to save logins and passwords for websites ***/ + // pref("signon.rememberSignons", false); + /* 5004: disable permissions manager from writing to disk [FF41+] [RESTART] + * [NOTE] This means any permission changes are session only + * [1] https://bugzilla.mozilla.org/967812 ***/ + // pref("permissions.memory_only", true); // [HIDDEN PREF] + /* 5005: disable intermediate certificate caching [FF41+] [RESTART] + * [NOTE] This affects login/cert/key dbs. The effect is all credentials are session-only. + * Saved logins and passwords are not available. Reset the pref and restart to return them ***/ + // pref("security.nocertdb", true); + /* 5006: disable favicons in history and bookmarks + * [NOTE] Stored as data blobs in favicons.sqlite, these don't reveal anything that your + * actual history (and bookmarks) already do. Your history is more detailed, so + * control that instead; e.g. disable history, clear history on exit, use PB mode + * [NOTE] favicons.sqlite is sanitized on Firefox close ***/ + // pref("browser.chrome.site_icons", false); + /* 5007: exclude "Undo Closed Tabs" in Session Restore ***/ + // pref("browser.sessionstore.max_tabs_undo", 0); + /* 5008: disable resuming session from crash + * [TEST] about:crashparent ***/ + // pref("browser.sessionstore.resume_from_crash", false); + /* 5009: disable "open with" in download dialog [FF50+] + * Application data isolation [1] + * [1] https://bugzilla.mozilla.org/1281959 ***/ + pref("browser.download.forbid_open_with", true); //BRACE-UNCOMMENTED: brace-installer-base installs firejail, without this would cause confusion + /* 5010: disable location bar suggestion types + * [SETTING] Search>Address Bar>When using the address bar, suggest ***/ + // pref("browser.urlbar.suggest.history", false); + // pref("browser.urlbar.suggest.bookmark", false); + // pref("browser.urlbar.suggest.openpage", false); + // pref("browser.urlbar.suggest.topsites", false); // [FF78+] + /* 5011: disable location bar dropdown + * This value controls the total number of entries to appear in the location bar dropdown ***/ + // pref("browser.urlbar.maxRichResults", 0); + /* 5012: disable location bar autofill + * [1] https://support.mozilla.org/kb/address-bar-autocomplete-firefox#w_url-autocomplete ***/ + // pref("browser.urlbar.autoFill", false); + /* 5013: disable browsing and download history + * [NOTE] We also clear history and downloads on exit (2811) + * [SETTING] Privacy & Security>History>Custom Settings>Remember browsing and download history ***/ + // pref("places.history.enabled", false); + /* 5014: disable Windows jumplist [WINDOWS] ***/ + // pref("browser.taskbar.lists.enabled", false); + // pref("browser.taskbar.lists.frequent.enabled", false); + // pref("browser.taskbar.lists.recent.enabled", false); + // pref("browser.taskbar.lists.tasks.enabled", false); + /* 5016: discourage downloading to desktop + * 0=desktop, 1=downloads (default), 2=custom + * [SETTING] To set your custom default "downloads": General>Downloads>Save files to ***/ + // pref("browser.download.folderList", 2); + /* 5017: disable Form Autofill + * If .supportedCountries includes your region (browser.search.region) and .supported + * is "detect" (default), then the UI will show. Stored data is not secure, uses JSON + * [SETTING] Privacy & Security>Forms and Autofill>Autofill addresses + * [1] https://wiki.mozilla.org/Firefox/Features/Form_Autofill ***/ + // pref("extensions.formautofill.addresses.enabled", false); // [FF55+] + // pref("extensions.formautofill.creditCards.enabled", false); // [FF56+] + /* 5018: limit events that can cause a pop-up ***/ + // pref("dom.popup_allowed_events", "click dblclick mousedown pointerdown"); + /* 5019: disable page thumbnail collection ***/ + // pref("browser.pagethumbnails.capturing_disabled", true); // [HIDDEN PREF] + /* 5020: disable Windows native notifications and use app notications instead [FF111+] [WINDOWS] ***/ + // pref("alerts.useSystemBackend.windows.notificationserver.enabled", false); + /* 5021: disable location bar using search + * Don't leak URL typos to a search engine, give an error message instead + * Examples: "secretplace,com", "secretplace/com", "secretplace com", "secret place.com" + * [NOTE] This does not affect explicit user action such as using search buttons in the + * dropdown, or using keyword search shortcuts you configure in options (e.g. "d" for DuckDuckGo) ***/ + // pref("keyword.enabled", false); + + /*** [SECTION 5500]: OPTIONAL HARDENING + Not recommended. Overriding these can cause breakage and performance issues, + they are mostly fingerprintable, and the threat model is practically nonexistent + ***/ + pref("_user.js.parrot", "5500 syntax error: this is an ex-parrot!"); + /* 5501: disable MathML (Mathematical Markup Language) [FF51+] + * [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=mathml ***/ + pref("mathml.disabled", true); // 1173199 //BRACE-UNCOMMENTED: attack surface reduction + /* 5502: disable in-content SVG (Scalable Vector Graphics) [FF53+] + * [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=firefox+svg ***/ + // pref("svg.disabled", true); // 1216893 + /* 5503: disable graphite + * [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=firefox+graphite + * [2] https://en.wikipedia.org/wiki/Graphite_(SIL) ***/ + pref("gfx.font_rendering.graphite.enabled", false); //BRACE-UNCOMMENTED: attack surface reduction + /* 5504: disable asm.js [FF22+] + * [1] http://asmjs.org/ + * [2] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=asm.js + * [3] https://rh0dev.github.io/blog/2017/the-return-of-the-jit/ ***/ + pref("javascript.options.asmjs", false); //BRACE-UNCOMMENTED: attack surface reduction + /* 5505: disable Ion and baseline JIT to harden against JS exploits [RESTART] + * [NOTE] When both Ion and JIT are disabled, and trustedprincipals + * is enabled, then Ion can still be used by extensions (1599226) + * [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=firefox+jit + * [2] https://microsoftedge.github.io/edgevr/posts/Super-Duper-Secure-Mode/ ***/ + pref("javascript.options.ion", false); //BRACE-UNCOMMENTED: attack surface reduction + pref("javascript.options.baselinejit", false); //BRACE-UNCOMMENTED: attack surface reduction + pref("javascript.options.native_regexp", false); //BRACE-ADDED: attack surface reduction + pref("javascript.options.jit_trustedprincipals", true); // [FF75+] [HIDDEN PREF]//BRACE-UNCOMMENTED: attack surface reduction + /* 5506: disable WebAssembly [FF52+] + * Vulnerabilities [1] have increasingly been found, including those known and fixed + * in native programs years ago [2]. WASM has powerful low-level access, making + * certain attacks (brute-force) and vulnerabilities more possible + * [STATS] ~0.2% of websites, about half of which are for cryptomining / malvertising [2][3] + * [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=wasm + * [2] https://spectrum.ieee.org/tech-talk/telecom/security/more-worries-over-the-security-of-web-assembly + * [3] https://www.zdnet.com/article/half-of-the-websites-using-webassembly-use-it-for-malicious-purposes ***/ + pref("javascript.options.wasm", false); //BRACE-UNCOMMENTED: attack surface reduction + /* 5507: disable rendering of SVG OpenType fonts ***/ + pref("gfx.font_rendering.opentype_svg.enabled", false); //BRACE-UNCOMMENTED: attack surface reduction + /* 5508: disable all DRM content (EME: Encryption Media Extension) + * Optionally hide the UI setting which also disables the DRM prompt + * [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 ***/ + pref("media.eme.enabled", false); //BRACE-UNCOMMENTED: proprietary + pref("browser.eme.ui.enabled", false); + /* 5509: disable IPv6 if using a VPN + * This is an application level fallback. Disabling IPv6 is best done at an OS/network + * level, and/or configured properly in system wide VPN setups. + * [NOTE] PHP defaults to IPv6 with "localhost". Use "php -S 127.0.0.1:PORT" + * [SETUP-WEB] PR_CONNECT_RESET_ERROR + * [TEST] https://ipleak.org/ + * [1] https://www.internetsociety.org/tag/ipv6-security/ (Myths 2,4,5,6) ***/ + // pref("network.dns.disableIPv6", true); + /* 5510: control when to send a cross-origin referer + * 0=always (default), 1=only if base domains match, 2=only if hosts match + * [NOTE] Will cause breakage: older modems/routers and some sites e.g banks, vimeo, icloud, instagram ***/ + pref("network.http.referer.XOriginPolicy", 2); //BRACE-UNCOMMENTED: nice to have + /* 5511: set DoH bootstrap address [FF89+] + * Firefox uses the system DNS to initially resolve the IP address of your DoH server. + * When set to a valid, working value that matches your "network.trr.uri" (0712) Firefox + * won't use the system DNS. If the IP doesn't match then DoH won't work ***/ + // pref("network.trr.bootstrapAddr", "10.0.0.1"); // [HIDDEN PREF] + + /*** [SECTION 6000]: DON'T TOUCH ***/ + pref("_user.js.parrot", "6000 syntax error: the parrot's 'istory!"); + /* 6001: enforce Firefox blocklist + * [WHY] It includes updates for "revoked certificates" + * [1] https://blog.mozilla.org/security/2015/03/03/revoking-intermediate-certificates-introducing-onecrl/ ***/ + pref("extensions.blocklist.enabled", true); // [DEFAULT: true] + /* 6002: enforce no referer spoofing + * [WHY] Spoofing can affect CSRF (Cross-Site Request Forgery) protections ***/ + pref("network.http.referer.spoofSource", false); // [DEFAULT: false] + /* 6004: enforce a security delay on some confirmation dialogs such as install, open/save + * [1] https://www.squarefree.com/2004/07/01/race-conditions-in-security-dialogs/ ***/ + pref("security.dialog_enable_delay", 1000); // [DEFAULT: 1000] + /* 6008: enforce no First Party Isolation [FF51+] + * [WARNING] Replaced with network partitioning (FF85+) and TCP (2701), and enabling FPI + * disables those. FPI is no longer maintained except at Tor Project for Tor Browser's config ***/ + pref("privacy.firstparty.isolate", false); // [DEFAULT: false] //MULL-ENABLE_ME: dFPI needs to be tested + /* 6009: enforce SmartBlock shims (about:compat) [FF81+] + * [1] https://blog.mozilla.org/security/2021/03/23/introducing-smartblock/ ***/ + pref("extensions.webcompat.enable_shims", true); // [HIDDEN PREF] [DEFAULT: true] + /* 6010: enforce no TLS 1.0/1.1 downgrades + * [TEST] https://tls-v1-1.badssl.com:1010/ ***/ + pref("security.tls.version.enable-deprecated", false); // [DEFAULT: false] + /* 6011: enforce disabling of Web Compatibility Reporter [FF56+] + * Web Compatibility Reporter adds a "Report Site Issue" button to send data to Mozilla + * [WHY] To prevent wasting Mozilla's time with a custom setup ***/ + pref("extensions.webcompat-reporter.enabled", false); // [DEFAULT: false] + /* 6012: enforce Quarantined Domains [FF115+] + * [WHY] https://support.mozilla.org/kb/quarantined-domains */ + pref("extensions.quarantinedDomains.enabled", true); // [DEFAULT: true] + /* 6050: prefsCleaner: previously active items removed from arkenfox 115-127 ***/ + // pref("accessibility.force_disabled", ""); + // pref("browser.urlbar.dnsResolveSingleWordsAfterSearch", ""); + // pref("geo.provider.network.url", ""); + // pref("geo.provider.network.logging.enabled", ""); + // pref("geo.provider.use_gpsd", ""); + // pref("network.protocol-handler.external.ms-windows-store", ""); + // pref("privacy.partition.always_partition_third_party_non_cookie_storage", ""); + // pref("privacy.partition.always_partition_third_party_non_cookie_storage.exempt_sessionstorage", ""); + // pref("privacy.partition.serviceWorkers", ""); + + /*** [SECTION 7000]: DON'T BOTHER ***/ + pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies!"); + /* 7001: disable APIs + * Location-Aware Browsing, Full Screen + * [WHY] The API state is easily fingerprintable. + * Geo is behind a prompt (7002). Full screen requires user interaction ***/ + // pref("geo.enabled", false); + // pref("full-screen-api.enabled", false); + /* 7002: set default permissions + * Location, Camera, Microphone, Notifications [FF58+] Virtual Reality [FF73+] + * 0=always ask (default), 1=allow, 2=block + * [WHY] These are fingerprintable via Permissions API, except VR. Just add site + * exceptions as allow/block for frequently visited/annoying sites: i.e. not global + * [SETTING] to add site exceptions: Ctrl+I>Permissions> + * [SETTING] to manage site exceptions: Options>Privacy & Security>Permissions>Settings ***/ + // pref("permissions.default.geo", 0); + // pref("permissions.default.camera", 0); + // pref("permissions.default.microphone", 0); + // pref("permissions.default.desktop-notification", 0); + // pref("permissions.default.xr", 0); // Virtual Reality + /* 7003: disable non-modern cipher suites [1] + * [WHY] Passive fingerprinting. Minimal/non-existent threat of downgrade attacks + * [1] https://browserleaks.com/ssl ***/ + // pref("security.ssl3.ecdhe_ecdsa_aes_128_sha", false); + // pref("security.ssl3.ecdhe_ecdsa_aes_256_sha", false); + // pref("security.ssl3.ecdhe_rsa_aes_128_sha", false); + // pref("security.ssl3.ecdhe_rsa_aes_256_sha", false); + // pref("security.ssl3.rsa_aes_128_gcm_sha256", false); // no PFS + // pref("security.ssl3.rsa_aes_256_gcm_sha384", false); // no PFS + // pref("security.ssl3.rsa_aes_128_sha", false); // no PFS + // pref("security.ssl3.rsa_aes_256_sha", false); // no PFS + /* 7004: control TLS versions + * [WHY] Passive fingerprinting and security ***/ + // pref("security.tls.version.min", 3); // [DEFAULT: 3] + // pref("security.tls.version.max", 4); + /* 7005: disable SSL session IDs [FF36+] + * [WHY] Passive fingerprinting and perf costs. These are session-only + * and isolated with network partitioning (FF85+) and/or containers ***/ + // pref("security.ssl.disable_session_identifiers", true); + /* 7007: referers + * [WHY] Only cross-origin referers (1602, 5510) matter ***/ + // pref("network.http.sendRefererHeader", 2); + // pref("network.http.referer.trimmingPolicy", 0); + /* 7008: set the default Referrer Policy [FF59+] + * 0=no-referer, 1=same-origin, 2=strict-origin-when-cross-origin, 3=no-referrer-when-downgrade + * [WHY] Defaults are fine. They can be overridden by a site-controlled Referrer Policy ***/ + // pref("network.http.referer.defaultPolicy", 2); // [DEFAULT: 2] + // pref("network.http.referer.defaultPolicy.pbmode", 2); // [DEFAULT: 2] + /* 7010: disable HTTP Alternative Services [FF37+] + * [WHY] Already isolated with network partitioning (FF85+) ***/ + // pref("network.http.altsvc.enabled", false); + /* 7011: disable website control over browser right-click context menu + * [WHY] Just use Shift-Right-Click ***/ + // pref("dom.event.contextmenu.enabled", false); + /* 7012: disable icon fonts (glyphs) and local fallback rendering + * [WHY] Breakage, font fallback is equivalency, also RFP + * [1] https://bugzilla.mozilla.org/789788 + * [2] https://gitlab.torproject.org/legacy/trac/-/issues/8455 ***/ + // pref("gfx.downloadable_fonts.enabled", false); // [FF41+] + // pref("gfx.downloadable_fonts.fallback_delay", -1); + /* 7013: disable Clipboard API + * [WHY] Fingerprintable. Breakage. Cut/copy/paste require user + * interaction, and paste is limited to focused editable fields ***/ + // pref("dom.event.clipboardevents.enabled", false); + /* 7014: disable System Add-on updates + * [WHY] It can compromise security. System addons ship with prefs, use those ***/ + // pref("extensions.systemAddon.update.enabled", false); // [FF62+] + // pref("extensions.systemAddon.update.url", ""); // [FF44+] + /* 7015: enable the DNT (Do Not Track) HTTP header + * [WHY] DNT is enforced with Tracking Protection which is used in ETP Strict (2701) ***/ + // pref("privacy.donottrackheader.enabled", true); + /* 7016: customize ETP settings + * [NOTE] FPP (fingerprintingProtection) is ignored when RFP (4501) is enabled + * [WHY] Arkenfox only supports strict (2701) which sets these at runtime ***/ + pref("network.cookie.cookieBehavior", 5); // [DEFAULT: 5] //BRACE-UNCOMMENTED: strict cannot be set on first launch, use custom + enterprise policy instead //MULL-MODIFY_ME: set to 1 for FPI + pref("network.cookie.cookieBehavior.optInPartitioning", true); // [ETP FF132+] + pref("network.http.referer.disallowCrossSiteRelaxingDefault", true); + pref("network.http.referer.disallowCrossSiteRelaxingDefault.top_navigation", true); // [FF100+] + pref("privacy.bounceTrackingProtection.mode", 1); // [FF131+] [ETP FF133+] + pref("privacy.fingerprintingProtection", true); // [FF114+] [ETP FF119+] + pref("privacy.partition.network_state.ocsp_cache", true); // [DEFAULT: true FF123+] + pref("privacy.query_stripping.enabled", true); // [FF101+] + pref("privacy.trackingprotection.enabled", true); + pref("privacy.trackingprotection.socialtracking.enabled", true); + pref("privacy.trackingprotection.cryptomining.enabled", true); // [DEFAULT: true] + pref("privacy.trackingprotection.fingerprinting.enabled", true); // [DEFAULT: true] + pref("privacy.trackingprotection.emailtracking.enabled", true); //BRACE-ADDED + /* 7017: disable service workers + * [WHY] Already isolated with TCP (2701) behind a pref (2710) ***/ + // pref("dom.serviceWorkers.enabled", false); + /* 7018: disable Web Notifications [FF22+] + * [WHY] Web Notifications are behind a prompt (7002) + * [1] https://blog.mozilla.org/en/products/firefox/block-notification-requests/ ***/ + // pref("dom.webnotifications.enabled", false); + /* 7019: disable Push Notifications [FF44+] + * [WHY] Website "push" requires subscription, and the API is required for CRLite (1224) + * [NOTE] To remove all subscriptions, reset "dom.push.userAgentID" + * [1] https://support.mozilla.org/kb/push-notifications-firefox ***/ + // pref("dom.push.enabled", false); + /* 7020: disable WebRTC (Web Real-Time Communication) + * [WHY] 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 ***/ + // pref("media.peerconnection.enabled", false); //MULL-UNCOMMENT_ME: Fenix doesn't protect local IP addreses like desktop does + /* 7021: enable GPC (Global Privacy Control) in non-PB windows + * [WHY] Passive and active fingerprinting. Mostly redundant with Tracking Protection + * in ETP Strict (2701) and sanitizing on close (2800s) ***/ + pref("privacy.globalprivacycontrol.enabled", true); //BRACE-ENABLED: GPC does have legal affordances in select regions + + /*** [SECTION 8000]: DON'T BOTHER: FINGERPRINTING + [WHY] They are insufficient to help anti-fingerprinting and do more harm than good + [WARNING] DO NOT USE with RFP. RFP already covers these and they can interfere + ***/ + pref("_user.js.parrot", "8000 syntax error: the parrot's crossed the Jordan"); + /* 8001: prefsCleaner: reset items useless for anti-fingerprinting ***/ + // pref("browser.display.use_document_fonts", ""); + // pref("browser.zoom.siteSpecific", ""); + // pref("device.sensors.enabled", ""); + // pref("dom.enable_performance", ""); + // pref("dom.enable_resource_timing", ""); + // pref("dom.gamepad.enabled", ""); + // pref("dom.maxHardwareConcurrency", ""); + // pref("dom.w3c_touch_events.enabled", ""); + // pref("dom.webaudio.enabled", ""); + // pref("font.system.whitelist", ""); + // pref("general.appname.override", ""); + // pref("general.appversion.override", ""); + // pref("general.buildID.override", ""); + // pref("general.oscpu.override", ""); + // pref("general.platform.override", ""); + // pref("general.useragent.override", ""); + // pref("media.navigator.enabled", ""); + // pref("media.ondevicechange.enabled", ""); + // pref("media.video_stats.enabled", ""); + // pref("media.webspeech.synth.enabled", ""); + // pref("ui.use_standins_for_native_colors", ""); + // pref("webgl.enable-debug-renderer-info", ""); + + /*** [SECTION 9000]: NON-PROJECT RELATED ***/ + pref("_user.js.parrot", "9000 syntax error: the parrot's cashed in 'is chips!"); + /* 9001: disable welcome notices ***/ + pref("browser.startup.homepage_override.mstone", "ignore"); // [HIDDEN PREF] + /* 9002: disable General>Browsing>Recommend extensions/features as you browse [FF67+] ***/ + pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.addons", false); + pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features", false); + /* 9004: disable search terms [FF110+] + * [SETTING] Search>Search Bar>Use the address bar for search and navigation>Show search terms instead of URL... ***/ + pref("browser.urlbar.showSearchTerms.enabled", false); + + /*** [SECTION 9999]: DEPRECATED / RENAMED ***/ + pref("_user.js.parrot", "9999 syntax error: the parrot's shuffled off 'is mortal coil!"); + /* ESR115.x still uses all the following prefs + // [NOTE] replace the * with a slash in the line above to re-enable active ones + // FF116 + // 4506: set RFP's font visibility level (1402) [FF94+] + // [-] https://bugzilla.mozilla.org/1838415 + // pref("layout.css.font-visibility.resistFingerprinting", 1); // [DEFAULT: 1] + // FF117 + // 1221: disable Windows Microsoft Family Safety cert [FF50+] [WINDOWS] + // 0=disable detecting Family Safety mode and importing the root + // 1=only attempt to detect Family Safety mode (don't import the root) + // 2=detect Family Safety mode and import the root + // [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/21686 + // [-] https://bugzilla.mozilla.org/1844908 + pref("security.family_safety.mode", 0); + // 7018: disable service worker Web Notifications [FF44+] + // [WHY] Web Notifications are behind a prompt (7002) + // [1] https://blog.mozilla.org/en/products/firefox/block-notification-requests/ + // [-] https://bugzilla.mozilla.org/1842457 + // pref("dom.webnotifications.serviceworker.enabled", false); + // FF118 + // 1402: 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 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 + // [-] https://bugzilla.mozilla.org/1847599 + // pref("layout.css.font-visibility.private", 1); + // pref("layout.css.font-visibility.standard", 1); + // pref("layout.css.font-visibility.trackingprotection", 1); + // 2623: disable permissions delegation [FF73+] + // 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 + // [-] https://bugzilla.mozilla.org/1697151 + // pref("permissions.delegation.enabled", false); + // FF119 + // 0211: use en-US locale regardless of the system or region locale + // [SETUP-WEB] May break some input methods e.g xim/ibus for CJK languages [1] + // [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=867501,1629630 + // [-] https://bugzilla.mozilla.org/1846224 + // pref("javascript.use_us_english_locale", true); // [HIDDEN PREF] + // 0711: disable skipping DoH when parental controls are enabled [FF70+] + // [-] https://bugzilla.mozilla.org/1586941 + pref("network.dns.skipTRR-when-parental-control-enabled", false); + // FF123 + // 0334: disable PingCentre telemetry (used in several System Add-ons) [FF57+] + // Defense-in-depth: currently covered by 0331 + // [-] https://bugzilla.mozilla.org/1868988 + pref("browser.ping-centre.telemetry", false); + // FF126 + // 9003: disable What's New toolbar icon [FF69+] + // [-] https://bugzilla.mozilla.org/1724300 + pref("browser.messaging-system.whatsNewPanel.enabled", false); + // FF127 + // 2630: disable content analysis by DLP (Data Loss Prevention) agents - replaced by default_result + // [-] https://bugzilla.mozilla.org/1880314 + pref("browser.contentanalysis.default_allow", false); + // 4511: 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 + // [-] https://bugzilla.mozilla.org/1848899 + pref("widget.non-native-theme.enabled", true); // [DEFAULT: true] + // ***/ + + /* ESR128.x still uses all the following prefs + // [NOTE] replace the * with a slash in the line above to re-enable active ones + // FF132 + /* 2617: remove webchannel whitelist + // [-] https://bugzilla.mozilla.org/1275612 + // pref("webchannel.allowObject.urlWhitelist", ""); + // ***/ + + /* END: internal custom pref to test for syntax errors ***/ + pref("_user.js.parrot", "SUCCESS: No no he's not dead, he's, he's restin'!"); + \ No newline at end of file diff --git a/roles/arkenfox/files/usr/lib64/firefox/browser/defaults/preferences/userjs-brace.js b/roles/arkenfox/files/usr/lib64/firefox/browser/defaults/preferences/userjs-brace.js new file mode 100644 index 0000000..58da4fc --- /dev/null +++ b/roles/arkenfox/files/usr/lib64/firefox/browser/defaults/preferences/userjs-brace.js @@ -0,0 +1,55 @@ +//Look +pref("browser.ctrlTab.recentlyUsedOrder", false); +pref("browser.privatebrowsing.vpnpromourl", ""); +pref("browser.vpn_promo.enabled", false); +pref("browser.tabs.drawInTitlebar", true); +pref("devtools.netmonitor.persistlog", true); +pref("devtools.webconsole.persistlog", true); +pref("general.smoothScroll", false); +pref("widget.allow-client-side-decoration", true); +pref("mailnews.start_page.enabled", false); +pref("browser.newtabpage.activity-stream.asrouter.providers.snippets", "{}"); //BRACE-KEEP_FOR_NOW +pref("browser.library.activity-stream.enabled", false); //BRACE-UNCOMMENTED + +//Privacy +pref("privacy.globalprivacycontrol.enabled", true); +pref("browser.snippets.enabled", false); +pref("browser.snippets.firstrunHomepage.enabled", false); +pref("browser.snippets.syncPromo.enabled", false); +pref("browser.snippets.updateUrl", ""); +pref("general.useragent.updates.enabled", false); +pref("network.negotiate-auth.trusted-uris", ""); +pref("network.dns.native_https_query", true); +pref("network.trr.uri", "https://dns.quad9.net/dns-query"); +pref("network.trr.custom_uri", "https://dns.quad9.net/dns-query"); +pref("plugin.expose_full_path", false); +pref("extensions.enigmail.autoWkdLookup", 0); +pref("messenger.status.reportIdle", false); +pref("media.gmp-widevinecdm.visible", false); //BRACE-KEEP_FOR_NOW: proprietary +pref("network.manage-offline-status", false); +pref("browser.urlbar.suggest.quicksuggest.nonsponsored", false); +pref("browser.urlbar.suggest.quicksuggest.sponsored", false); +pref("browser.urlbar.quicksuggest.dataCollection.enabled", false); +pref("mailnews.headers.sendUserAgent", false); +pref("mail.sanitize_date_header", true); +pref("dom.private-attribution.submission.enabled", false); + +//Security +pref("browser.gnome-search-provider.enabled", false); +pref("fission.autostart", true); //MULL-COMMENT_ME +pref("security.webauth.u2f", true); //MULL-COMMENT_ME +pref("security.tls.enable_kyber", true); +pref("network.http.http3.enable_kyber", true); +pref("mail.phishing.detection.enabled", true); +pref("mailnews.message_display.disable_remote_image", true); + +//Disable Pocket +pref("browser.newtabpage.activity-stream.feeds.section.topstories", false); +pref("browser.newtabpage.activity-stream.section.highlights.includePocket", false); +pref("extensions.pocket.enabled", false); + +//Disable Sync +pref("identity.fxaccounts.enabled", false); + +//Fix IPv6 when using DoH +pref("network.dns.preferIPv6", true); //BRACE-KEEP_FOR_NOW \ No newline at end of file diff --git a/roles/arkenfox/files/usr/lib64/firefox/browser/defaults/preferences/userjs-override.js b/roles/arkenfox/files/usr/lib64/firefox/browser/defaults/preferences/userjs-override.js new file mode 100644 index 0000000..6fb9b9e --- /dev/null +++ b/roles/arkenfox/files/usr/lib64/firefox/browser/defaults/preferences/userjs-override.js @@ -0,0 +1,3 @@ +pref("privacy.resistFingerprinting.letterboxing", false); // disable letterboxing because it's very annoying +pref("javascript.options.wasm", true); // enable WASM because element and proton need it +pref("general.smoothScroll", true); // why do I have this set? \ No newline at end of file diff --git a/roles/arkenfox/files/usr/lib64/firefox/distribution/policies.json b/roles/arkenfox/files/usr/lib64/firefox/distribution/policies.json new file mode 100644 index 0000000..9b966fa --- /dev/null +++ b/roles/arkenfox/files/usr/lib64/firefox/distribution/policies.json @@ -0,0 +1,80 @@ +{ + "policies": { + "CaptivePortal": false, + "Cookies": { + "Behavior": "reject-tracker-and-partition-foreign", + "BehaviorPrivateBrowsing": "reject-tracker-and-partition-foreign" + }, + "DisableFirefoxAccounts": true, + "DisableFirefoxStudies": true, + "DisablePocket": true, + "DisableSecurityBypass": false, + "DisableTelemetry": true, + "EnableTrackingProtection": { + "Value": true, + "Locked": false, + "Cryptomining": true, + "Fingerprinting": true, + "EmailTracking": true + }, + "DNSOverHTTPS": { + "Enabled": true, + "Locked": false, + "Fallback": false, + "ProviderURL": "https://dns.quad9.net/dns-query" + }, + "Extensions": { + "Install": [ + "https://addons.mozilla.org/firefox/downloads/latest/ublock-origin/latest.xpi" + ] + }, + "ExtensionSettings": { + "*": { + "blocked_install_message": "Denied by Brace", + "install_sources": [ "about:addons", "https://addons.mozilla.org/" ], + "installation_mode": "blocked", + "allowed_types": [ "extension" ] + }, + "uBlock0@raymondhill.net": { + "installation_mode": "force_installed", + "install_url": "https://addons.mozilla.org/firefox/downloads/latest/uBlock0@raymondhill.net/latest.xpi" + }, + "{73a6fe31-595d-460b-a920-fcc0f8843232}": { + "installation_mode": "allowed", + "install_url": "https://addons.mozilla.org/firefox/downloads/latest/{73a6fe31-595d-460b-a920-fcc0f8843232}/latest.xpi" + }, + "{9a41dee2-b924-4161-a971-7fb35c053a4a}": { + "installation_mode": "allowed", + "install_url": "https://addons.mozilla.org/firefox/downloads/latest/{9a41dee2-b924-4161-a971-7fb35c053a4a}/latest.xpi" + }, + "{48748554-4c01-49e8-94af-79662bf34d50}": { + "installation_mode": "allowed", + "install_url": "https://addons.mozilla.org/firefox/downloads/latest/{48748554-4c01-49e8-94af-79662bf34d50}/latest.xpi" + } + }, + "FirefoxHome": { + "Search": true, + "TopSites": false, + "SponsoredTopSites": false, + "Highlights": false, + "Pocket": false, + "SponsoredPocket": false, + "Snippets": false, + "Locked": false + }, + "FirefoxSuggest": { + "WebSuggestions": false, + "SponsoredSuggestions": false, + "ImproveSuggest": false, + "Locked": false + }, + "NetworkPrediction": false, + "OverrideFirstRunPage": "about:home", + "UserMessaging": { + "WhatsNew": false, + "ExtensionRecommendations": false, + "FeatureRecommendations": false, + "SkipOnboarding": false + } + } +} diff --git a/roles/arkenfox/tasks/main.yaml b/roles/arkenfox/tasks/main.yaml index e69de29..c540d5a 100644 --- a/roles/arkenfox/tasks/main.yaml +++ b/roles/arkenfox/tasks/main.yaml @@ -0,0 +1,10 @@ +- name: Copy arkenfox files + ansible.builtin.copy: + src: '{{ item }}' + dest: '/{{ item }}' + mode: '0644' + loop: + - 'usr/lib64/firefox/browser/defaults/preferences/userjs-arkenfox.js' + - 'usr/lib64/firefox/browser/defaults/preferences/userjs-brace.js' + - 'usr/lib64/firefox/browser/defaults/preferences/userjs-override.js' + - 'usr/lib64/firefox/distribution/policies.json' \ No newline at end of file diff --git a/roles/baseline/tasks/main.yaml b/roles/baseline/tasks/main.yaml index 6c014d5..ac5efb8 100644 --- a/roles/baseline/tasks/main.yaml +++ b/roles/baseline/tasks/main.yaml @@ -77,7 +77,7 @@ mode: '0755' when: manage_network == true -- name: Copy dconf files + xdg-desktop-portals fix + Network manager +- name: Harden Network manager using brace config ansible.builtin.copy: src: 'etc/systemd/system/NetworkManager.service.d/99-brace.conf' dest: '/etc/systemd/system/NetworkManager.service.d/99-brace.conf'