Compare commits

..

79 Commits
92.0 ... 96.0

Author SHA1 Message Date
ac0820a5dc add last bits about ETP Strict/dFPI, closes #1337 2022-01-21 03:48:06 +00:00
83b6d64e67 security.insecure_connection_text.enabled
AF has been using HTTPS-Only mode since v84, the interstitial is more than ample, padlock is still marked as insecure
2022-01-16 02:36:08 +00:00
b5bf2ee017 oophs, add removed item from last commit to 6050 2022-01-16 02:34:21 +00:00
09d62d2302 remove 1273: "not Secure" text on insecure sites
AF has been using HTTPS-Only mode since v84, the interstitial is more than ample, padlock is still marked as insecure
2022-01-16 02:31:57 +00:00
7a4676fe2d make 1601 setup tag more explicit, closes #1326 2022-01-15 05:25:11 +00:00
bc2aba3829 move last update pref to personal 2022-01-12 05:25:31 +00:00
926a2d4ac8 v96 deprecated, #1325
also tidy the description to reflect that the setting is hidden
2022-01-12 05:09:17 +00:00
ab7380c93b HoM: tweak background request info 2022-01-11 09:21:37 +00:00
06b8d8bfa3 move 0362 to don't touch 2022-01-07 17:29:26 +00:00
7016c2050d move TLS 1.0/1.1 downgrades to don't bother
https://bugzilla.mozilla.org/show_bug.cgi?id=1745678
2021-12-30 03:15:56 +00:00
2787da7f90 Update README.md 2021-12-24 06:04:38 +00:00
7e18f8b473 tweak 2011
- FF85+ switched to using application regional locale
   - go to about:support > Internationalization & Localization (almost at the very end)
   - look at Application > Regional Preferences
- add test
2021-12-24 06:01:41 +00:00
d2510b014d move updates to personal
updating (app, extensions, ext cache) is not a privacy issue
- if you're willing to use Firefox but not trust updating, then I have two bricks to sell you: users who wish to disable it (to check changes first etc) and update in a timely manner, then that is on them - including any prompt fatigue
- same goes for extensions: the end-user installed them (and arkenfox only recommends a very select few) - the onus is on the end-user

The remaining ones I will deal with later
2021-12-23 23:42:28 +00:00
87bd8683fa 2022: add browser.eme.ui.enabled
for those who want to remove DRM prompts and have no intention of enabling it
2021-12-23 21:22:41 +00:00
d48d3ad29a remove browser.eme.ui.enabled 2021-12-23 21:20:28 +00:00
6675225ec4 make 0301 inactive
auto-updating is not a security nor a privacy risk, by default it should be enabled and it's on end-users if they want to disable it - does not affect windows users
2021-12-23 06:36:39 +00:00
bb56056a68 explain 0-RTT 2021-12-15 19:23:03 +00:00
93f0ff89c8 move web notifcations to don't bother 2021-12-15 00:05:03 +00:00
7811e912f4 make push notifications inactive
- they require SWers which are already blocked by virtue of permissions being session only
- also remove "dom.push.userAgentID" as this means prefsCleaner resets it and would wipe user's subscriptions
   - not adding "dom.push.userAgentID" to the cleanup script for the same reason
2021-12-14 13:25:46 +00:00
238f1545f4 fixup thanks #fxbrit have a 🍥 fish cake 2021-12-13 14:15:25 +00:00
c269ac9f7d remove duplicate 2021-12-13 03:49:42 +00:00
78297132b4 fix syntax 2021-12-12 15:44:39 +00:00
8de87de050 update 0704: GIO, closes #1050 (#1300)
https://bugzilla.mozilla.org/show_bug.cgi?id=1666725
2021-12-12 15:41:55 +00:00
8bc25b552d expand 0650 to include any removed item
this should reduce any dependency on the scratchpad script
2021-12-12 15:30:53 +00:00
c8c86262d7 enforce SmartBlock shims 2021-12-12 13:51:25 +00:00
f836e55363 tidy ETP stuff 2021-12-12 13:31:01 +00:00
8cdb30cc08 make cookie pref active
@SkewedZeppelin ... https://github.com/arkenfox/user.js/issues/1051#issuecomment-991806497
2021-12-12 00:26:12 +00:00
54810e333f typo 2021-12-11 19:17:43 +00:00
7ec13c0323 sharedWorkers tweak
tested in FF91+. Seems as if sharedWorkers no longer requires an explicit `Allow`
2021-12-11 12:22:00 +00:00
af109d4696 tweak 7016 2021-12-11 11:15:34 +00:00
460951df9e tidy, add instructions 2021-12-11 09:37:45 +00:00
93874bda43 rename 2021-12-11 09:14:59 +00:00
4ebabbb569 Delete arkenfox-clear-deprecated.js 2021-12-11 09:13:51 +00:00
1f0dc1853d merge scratchpads into one 2021-12-11 09:13:09 +00:00
13e5fe17b1 remove rfpalts (#1288) 2021-12-11 06:56:43 +00:00
ec7cb6a491 2702: partition service workers 2021-12-09 17:17:52 +00:00
d9f49bdf1f make 7017 clearer 2021-12-09 16:17:53 +00:00
d5bc6715cd remove web workers section
farewell parrot
2021-12-09 16:14:36 +00:00
8860c90abf make service workers inactive
currently 3rd party service workers are blocked in FF95 when dFPI is enabled (which this version has should anyone update to 96-alpha)
   - but I get an error even on first party - https://arkenfox.github.io/TZP/tzp.html#storage
   - I get : service worker | test : enabled | failed: SecurityError
in FF96+ service workers they are covered by dFPI
  - see https://bugzilla.mozilla.org/show_bug.cgi?id=1731999
2021-12-09 14:31:41 +00:00
4d5abd6cc3 tweak 8000 title
lets not encourage non-RFP users to see this as a sign to use them
2021-12-09 14:18:25 +00:00
de28689e76 flip from FPI to dFPI
I will tidy and expand 2700 entries later
2021-12-09 14:13:39 +00:00
5d508e4242 move LSNG to don't touch 2021-12-09 14:05:47 +00:00
1fc43574d6 move "cookie" permission info into 2801 2021-12-09 14:00:21 +00:00
83602baa38 misc site storage/data prefs
been inactive since jesus was a baby
2021-12-09 13:47:57 +00:00
0634a568ef remove redundant site data prefs
we've never used these
- service workers are disabled (or soon to be covered by dFPI when enabled) and sanitizing is already done (or will be done via enhanced cookie cleaning)
- storage API, storage access API: we sanitize on close, and sites are isolated by eTLD+1
2021-12-09 13:45:46 +00:00
97322d6e8b various inactive FPI prefs 2021-12-09 12:31:38 +00:00
f7bba92c71 cleanout FPI section
farewell parrot
2021-12-09 12:28:45 +00:00
fe75baa79f move DNT to DON'T BOTHER 2021-12-09 11:44:51 +00:00
72cc4d176e 0706: network.proxy.allow_bypass, closes #1292 2021-12-09 11:41:18 +00:00
7e1b92567c 95 final 2021-12-08 12:13:47 +00:00
fec5168203 95 deprecated 2021-12-08 04:28:47 +00:00
b60a888da3 update WebRTC, closes #1282 2021-12-06 14:45:47 +00:00
ec595c3b95 fixup duplicate line 2021-12-05 19:59:33 +00:00
9d61992c8c don't clear offlineApps on shutdown, #1291
- in v94 we switched to cookies lifetime as session, so users could use site exceptions to retain selected cookies (to stay logged in one assumes)
- that mean not deleting all cookies on shutdown
- but some login methods/types require more than cookies and also need the "site data" part of "cookies + site data" - that's the offlineApps part
- note: all site data (and cookies) is still cleared on close except site exceptions
2021-12-05 19:49:32 +00:00
fd860e6c69 flip RFP newwin max values, closes #1286 2021-12-04 10:23:59 +00:00
d1d20b897a wiki cleanup (#1289) 2021-12-04 09:36:09 +00:00
cf0102f71e fixup: from being flogged to death by overseers
thanks @dngray, also save some precious bytes .. polar bears know about scarce resources
2021-12-02 09:34:34 +00:00
4dc5372257 0603: network.predictor.enable-prefetch
make active for Nighty users - see https://bugzilla.mozilla.org/show_bug.cgi?id=1506194
2021-11-30 13:29:19 +00:00
c2ddfd60bf tidy 79-91 removed items 2021-11-28 13:22:46 +00:00
47de4f520b tidy 5505 2021-11-28 09:01:39 +00:00
27977a16ad 2652: browser.download.alwaysOpenPanel
FYI: https://bugzilla.mozilla.org/1738372

There is a small privacy issue with shoulder surfers, but in reality, this just needs to happen IMO
- we already prompt where to save, but even if we didn't, we also know we clicked or initiated a download
   - unless it's a drive by or user-gesture trickery - which is why we prompt
- the download icon is shown (if hidden) and the throbber/accent color go to work
- users can always click the icon to show entries (and open folder etc)
- this maintains the current behavior in FF94
2021-11-25 06:49:38 +00:00
4b393b9b12 start 95-alpha 2021-11-24 01:09:10 +00:00
6027aaa45d fixup warnOnQuitShortcut 2021-11-23 12:02:50 +00:00
cbfb8abf15 94 final 2021-11-23 07:11:43 +00:00
58d0161b67 add warnOnQuitShortcut, closes #1270 2021-11-23 07:05:01 +00:00
6b351a9458 fixup trade-offs
anti-fingerprinting doesn't fit here: it's not a major component or priority of this user.js, and only a few prefs outside RFP (as a robust built-in browser solution that defeats naive scripts) have anything to do with it
2021-11-22 18:15:53 +00:00
c9e4cac618 tweak webRTC
webRTC will be overhauled... but not today... in the meantime
- remove dead link before @dngray has a hernia
- correctly refer to the type of IP leak
2021-11-22 18:08:07 +00:00
34bd3c5a04 consolidate/simplify sanitizing, fixes #1256
move all sanitizing on exit prefs into 2800

switch to cookie lifetime as session
- now users can utilize exceptions (as allow)
- session cookies still block service workers (which we disable anyway)
- we still block 3rd party cookies (until we move to dFPI)
- we still have defense in depth for 3rd party cookies with 2803
- we still bulk sanitize offlineApps on exit: localStorage, service worker cache, QuotaManager (IndexedDB, asm-cache)
   - i.e you get to keep the cookies only IF you add an exception

add `privacy.clearsitedata.cache.enabled`
2021-11-22 05:40:49 +00:00
2f88ca2e40 misc
- move DoH so it has room to grow
- tidy privacy.clearOnShutdown, privacy.cpd
2021-11-18 01:28:21 +00:00
e2e7f9c647 font vis changes (#1275) 2021-11-16 11:56:20 +00:00
f8932dced1 remove ambiguous line
The point was that google have said (stated in policy, but fuck knows where that is located these days) that it is anonymized and not used for tracking. It's an API used by **_4 billion devices_** - the API has privacy policies for use. If a whistleblower or someone else found out that google was using this to enhance their user profiling, then all hell would break loose. And they don't even need this to fuel their ad revenue. It is provided, gratis, to the web to help ensure security - they wouldn't dare taint it and get it caught up in a privacy scandal involving **+4 billion devices_**. And in all this time (since 2007), there has been no such whistleblower or proof it is used to track or announcements by google of changes to the contrary.

Anyway, a quick search brings up
- Here is their policy - https://www.google.com/intl/en_us/privacy/browsing.html - it's empty and points to
- https://www.google.com/intl/en/chrome/privacy/
   - and if you scroll down to "Safe Browsing practices" it doesn't say anything about privacy policies for the API itself (or the owner of the API) - it just spells out what happens in chrome
- I'm not going to bother to look any further and find a history of policy changes

Anyway, this is Firefox and hashes are part hashes bundled with other real hashes - and we turned off real time binary checks. So this line can fuck the fuck off. It was meant to reassure those who want the security of real-time binary checks, that privacy "shouldn't" be an issue, but I'm not going to expand on it
2021-11-07 06:48:45 +00:00
17beb468f1 tweak 1510 default info 2021-11-04 22:44:23 +00:00
bd59131d3e default changes, missed one 2021-11-04 22:38:16 +00:00
0f8217ad60 cleanup sanitizing-on-close prefs 2021-11-04 16:18:35 +00:00
1515897449 default changes 2021-11-02 16:07:42 +00:00
ba92918d38 don't disable system addon updates, closes #1251 2021-10-26 10:16:42 +00:00
094356e073 0706: add reference 2021-10-25 20:56:18 +00:00
7d68a32971 start 94-alpha
- and remove obsolete ESR78 notations
- note: we leave the deprecated ESR78.x section and item 6050 until v95 so users upgrading to ESR91 can easily reset those prefs with prefsCleaner
2021-10-25 17:41:16 +00:00
85438d00e4 v93 deprecated 2021-10-12 08:23:46 +00:00
11 changed files with 492 additions and 630 deletions

View File

@ -20,6 +20,7 @@ Also be aware that the `arkenfox user.js` is made specifically for desktop Firef
- [wiki](https://github.com/arkenfox/user.js/wiki)
- [stickies](https://github.com/arkenfox/user.js/issues?q=is%3Aissue+is%3Aopen+label%3A%22sticky+topic%22)
- [diffs](https://github.com/arkenfox/user.js/issues?q=is%3Aissue+label%3Adiffs)
- [common questions and answers](https://github.com/arkenfox/user.js/issues?q=is%3Aissue+label%3Aanswered)
### 🟥 acknowledgments
Literally thousands of sources, references and suggestions. Many thanks, and much appreciated.

View File

@ -1,10 +1,29 @@
/***
This will reset the preferences that have been removed completely from the arkenfox user.js.
This will reset the preferences that have been
- removed from the arkenfox user.js
- deprecated by Mozilla but listed in the arkenfox user.js in the past
Last updated: 29-August-2021
Last updated: 16-January-2022
Instructions:
- [optional] close Firefox and backup your profile
- [optional] disable your network connection [1]
- start Firefox
- load about:config and press Ctrl+Shift+K to open the Web Console for about:config
- using about:config is important, so the script has the right permissions
- paste this script
- if you edited the list of prefs in the script, make sure the last pref does not have a trailing comma
- hit enter
- check the Info output to see which prefs were reset
- restart
- some prefs require a restart
- a restart will reapply your user.js
- [optional] re-enable your network connection
[1] Blocking Firefox from the internet ensures it cannot act on your reset preferences in the
period before you restart it, such as app and extension auto-updating, or downloading unwanted
components (GMP etc). It depends on what you're resetting and how long before you restart.
For instructions see:
https://github.com/arkenfox/user.js/wiki/3.1-Resetting-Inactive-Prefs-[Scripts]
***/
(() => {
@ -12,31 +31,231 @@
if ('undefined' === typeof(Services)) return alert('about:config needs to be the active tab!');
const aPREFS = [
/* removed in arkenfox user.js */
/* 91 */
/* DEPRECATED */
/* FF92+ */
'browser.urlbar.suggest.quicksuggest', // 95
'layout.css.font-visibility.level', // 94
'security.ssl3.rsa_des_ede3_sha', // 93
/* FF79-91 */
'browser.cache.offline.storage.enable',
'browser.download.hide_plugins_without_extensions',
'browser.library.activity-stream.enabled',
'browser.search.geoSpecificDefaults',
'browser.search.geoSpecificDefaults.url',
'dom.ipc.plugins.flash.subprocess.crashreporter.enabled',
'dom.ipc.plugins.reportCrashURL',
'dom.w3c_pointer_events.enabled',
'intl.charset.fallback.override',
'network.ftp.enabled',
'plugin.state.flash',
'security.mixed_content.block_object_subrequest',
'security.ssl.errorReporting.automatic',
'security.ssl.errorReporting.enabled',
'security.ssl.errorReporting.url',
/* 69-78 */
'browser.newtabpage.activity-stream.telemetry.ping.endpoint',
'browser.tabs.remote.allowLinkedWebInFileUriProcess',
'browser.urlbar.oneOffSearches',
'devtools.webide.autoinstallADBExtension',
'devtools.webide.enabled',
'dom.indexedDB.enabled',
'extensions.blocklist.url',
'geo.wifi.logging.enabled',
'geo.wifi.uri',
'gfx.downloadable_fonts.woff2.enabled',
'media.autoplay.allow-muted',
'media.autoplay.enabled.user-gestures-needed',
'offline-apps.allow_by_default',
'plugins.click_to_play',
'privacy.userContext.longPressBehavior',
'toolkit.cosmeticAnimations.enabled',
'toolkit.telemetry.hybridContent.enabled',
'webgl.disable-extensions',
/* 61-68 */
'app.update.enabled',
'browser.aboutHomeSnippets.updateUrl',
'browser.chrome.errorReporter.enabled',
'browser.chrome.errorReporter.submitUrl',
'browser.chrome.favicons',
'browser.ctrlTab.previews',
'browser.fixup.hide_user_pass',
'browser.newtabpage.activity-stream.asrouter.userprefs.cfr',
'browser.newtabpage.activity-stream.disableSnippets',
'browser.onboarding.enabled',
'browser.search.countryCode',
'browser.urlbar.autocomplete.enabled',
'devtools.webide.adbAddonURL',
'devtools.webide.autoinstallADBHelper',
'dom.event.highrestimestamp.enabled',
'experiments.activeExperiment',
'experiments.enabled',
'experiments.manifest.uri',
'experiments.supported',
'lightweightThemes.update.enabled',
'media.autoplay.enabled',
'network.allow-experiments',
'network.cookie.lifetime.days',
'network.jar.block-remote-files',
'network.jar.open-unsafe-types',
'plugin.state.java',
'security.csp.enable_violation_events',
'security.csp.experimentalEnabled',
'shield.savant.enabled',
/* 60 or earlier */
'browser.bookmarks.showRecentlyBookmarked',
'browser.casting.enabled',
'browser.crashReports.unsubmittedCheck.autoSubmit',
'browser.formautofill.enabled',
'browser.formfill.saveHttpsForms',
'browser.fullscreen.animate',
'browser.history.allowPopState',
'browser.history.allowPushState',
'browser.history.allowReplaceState',
'browser.newtabpage.activity-stream.enabled',
'browser.newtabpage.directory.ping',
'browser.newtabpage.directory.source',
'browser.newtabpage.enhanced',
'browser.newtabpage.introShown',
'browser.pocket.api',
'browser.pocket.enabled',
'browser.pocket.oAuthConsumerKey',
'browser.pocket.site',
'browser.polaris.enabled',
'browser.safebrowsing.appRepURL',
'browser.safebrowsing.enabled',
'browser.safebrowsing.gethashURL',
'browser.safebrowsing.malware.reportURL',
'browser.safebrowsing.provider.google.appRepURL',
'browser.safebrowsing.reportErrorURL',
'browser.safebrowsing.reportGenericURL',
'browser.safebrowsing.reportMalwareErrorURL',
'browser.safebrowsing.reportMalwareMistakeURL',
'browser.safebrowsing.reportMalwareURL',
'browser.safebrowsing.reportPhishMistakeURL',
'browser.safebrowsing.reportURL',
'browser.safebrowsing.updateURL',
'browser.search.showOneOffButtons',
'browser.selfsupport.enabled',
'browser.selfsupport.url',
'browser.sessionstore.privacy_level_deferred',
'browser.tabs.animate',
'browser.trackingprotection.gethashURL',
'browser.trackingprotection.updateURL',
'browser.urlbar.unifiedcomplete',
'browser.usedOnWindows10.introURL',
'camera.control.autofocus_moving_callback.enabled',
'camera.control.face_detection.enabled',
'datareporting.healthreport.about.reportUrl',
'datareporting.healthreport.about.reportUrlUnified',
'datareporting.healthreport.documentServerURI',
'datareporting.healthreport.service.enabled',
'datareporting.policy.dataSubmissionEnabled.v2',
'devtools.webide.autoinstallFxdtAdapters',
'dom.archivereader.enabled',
'dom.beforeAfterKeyboardEvent.enabled',
'dom.disable_image_src_set',
'dom.disable_window_open_feature.scrollbars',
'dom.disable_window_status_change',
'dom.enable_user_timing',
'dom.flyweb.enabled',
'dom.idle-observers-api.enabled',
'dom.keyboardevent.code.enabled',
'dom.network.enabled',
'dom.push.udp.wakeupEnabled',
'dom.telephony.enabled',
'dom.vr.oculus050.enabled',
'dom.workers.enabled',
'dom.workers.sharedWorkers.enabled',
'extensions.formautofill.experimental',
'extensions.screenshots.system-disabled',
'extensions.shield-recipe-client.api_url',
'extensions.shield-recipe-client.enabled',
'full-screen-api.approval-required',
'general.useragent.locale',
'geo.security.allowinsecure',
'intl.locale.matchOS',
'loop.enabled',
'loop.facebook.appId',
'loop.facebook.enabled',
'loop.facebook.fallbackUrl',
'loop.facebook.shareUrl',
'loop.feedback.formURL',
'loop.feedback.manualFormURL',
'loop.logDomains',
'loop.server',
'media.block-play-until-visible',
'media.eme.apiVisible',
'media.eme.chromium-api.enabled',
'media.getusermedia.screensharing.allow_on_old_platforms',
'media.getusermedia.screensharing.allowed_domains',
'media.gmp-eme-adobe.autoupdate',
'media.gmp-eme-adobe.enabled',
'media.gmp-eme-adobe.visible',
'network.http.referer.userControlPolicy',
'network.http.sendSecureXSiteReferrer',
'network.http.spdy.enabled.http2draft',
'network.http.spdy.enabled.v3-1',
'network.websocket.enabled',
'pageThumbs.enabled',
'pfs.datasource.url',
'plugin.scan.Acrobat',
'plugin.scan.Quicktime',
'plugin.scan.WindowsMediaPlayer',
'plugins.enumerable_names',
'plugins.update.notifyUser',
'plugins.update.url',
'privacy.clearOnShutdown.passwords',
'privacy.donottrackheader.value',
'security.mixed_content.send_hsts_priming',
'security.mixed_content.use_hsts',
'security.ssl3.ecdhe_ecdsa_rc4_128_sha',
'security.ssl3.ecdhe_rsa_rc4_128_sha',
'security.ssl3.rsa_rc4_128_md5',
'security.ssl3.rsa_rc4_128_sha',
'security.tls.insecure_fallback_hosts.use_static_list',
'security.tls.unrestricted_rc4_fallback',
'security.xpconnect.plugin.unrestricted',
'social.directories',
'social.enabled',
'social.remote-install.enabled',
'social.share.activationPanelEnabled',
'social.shareDirectory',
'social.toast-notifications.enabled',
'social.whitelist',
'toolkit.telemetry.unifiedIsOptIn',
/* REMOVED */
/* 92+ */
'dom.caches.enabled',
'dom.storageManager.enabled',
'dom.storage_access.enabled',
'privacy.firstparty.isolate.block_post_message',
'privacy.firstparty.isolate.restrict_opener_access',
'privacy.firstparty.isolate.use_site',
'security.insecure_connection_text.enabled',
/* 79-91 */
'alerts.showFavicons',
'browser.newtabpage.activity-stream.asrouter.providers.snippets',
'browser.send_pings.require_same_host',
'browser.urlbar.usepreloadedtopurls.enabled',
'dom.allow_cut_copy',
'dom.battery.enabled',
'dom.IntersectionObserver.enabled',
'dom.storage.enabled',
'dom.vibrator.enabled',
'extensions.screenshots.upload-disabled',
'general.warnOnAboutConfig',
'gfx.direct2d.disabled',
'layers.acceleration.disabled',
'media.getusermedia.audiocapture.enabled',
'media.getusermedia.browser.enabled',
'media.getusermedia.screensharing.enabled',
'media.media-capabilities.enabled',
'security.insecure_connection_icon.enabled',
'security.mixed_content.block_active_content',
/* 79-90 */
'browser.newtabpage.activity-stream.asrouter.providers.snippets',
'browser.send_pings.require_same_host',
'browser.urlbar.usepreloadedtopurls.enabled',
'dom.IntersectionObserver.enabled',
'extensions.screenshots.upload-disabled',
'media.gmp-widevinecdm.visible',
'media.media-capabilities.enabled',
'network.http.redirection-limit',
'privacy.partition.network_state',
'security.insecure_connection_icon.enabled',
'security.mixed_content.block_active_content',
'security.ssl.enable_ocsp_stapling',
'security.ssl3.dhe_rsa_aes_128_sha',
'security.ssl3.dhe_rsa_aes_256_sha',
@ -69,7 +288,6 @@
'browser.cache.disk.smart_size.first_run',
'browser.cache.offline.insecure.enable',
'browser.contentblocking.enabled',
'browser.eme.ui.enabled',
'browser.laterrun.enabled',
'browser.offline-apps.notify',
'browser.rights.3.shown',
@ -233,6 +451,8 @@
// 'dom.ipc.plugins.sandbox-level.default',
// 'dom.ipc.plugins.sandbox-level.flash',
// 'security.sandbox.logging.enabled',
/* IMPORTANT: last active pref must not have a trailing comma */
/* reset parrot: check your open about:config after running the script */
'_user.js.parrot'
];

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@ -1,232 +0,0 @@
/***
Version: up to and including FF/ESR91
This will reset the preferences that have been deprecated by Mozilla
and used in the arkenfox user.js
It is in reverse order, so feel free to remove sections that do not apply
For instructions see:
https://github.com/arkenfox/user.js/wiki/3.1-Resetting-Inactive-Prefs-[Scripts]
***/
(() => {
if ('undefined' === typeof(Services)) return alert('about:config needs to be the active tab!');
const aPREFS = [
/* deprecated */
/* FF79-91 */
'browser.cache.offline.storage.enable',
'browser.download.hide_plugins_without_extensions',
'browser.library.activity-stream.enabled',
'browser.search.geoSpecificDefaults',
'browser.search.geoSpecificDefaults.url',
'dom.ipc.plugins.flash.subprocess.crashreporter.enabled',
'dom.ipc.plugins.reportCrashURL',
'dom.w3c_pointer_events.enabled',
'intl.charset.fallback.override',
'network.ftp.enabled',
'plugin.state.flash',
'security.mixed_content.block_object_subrequest',
'security.ssl.errorReporting.automatic',
'security.ssl.errorReporting.enabled',
'security.ssl.errorReporting.url',
/* 69-78 */
'browser.newtabpage.activity-stream.telemetry.ping.endpoint',
'browser.tabs.remote.allowLinkedWebInFileUriProcess',
'browser.urlbar.oneOffSearches',
'devtools.webide.autoinstallADBExtension',
'devtools.webide.enabled',
'dom.indexedDB.enabled',
'extensions.blocklist.url',
'geo.wifi.logging.enabled',
'geo.wifi.uri',
'gfx.downloadable_fonts.woff2.enabled',
'media.autoplay.allow-muted',
'media.autoplay.enabled.user-gestures-needed',
'offline-apps.allow_by_default',
'plugins.click_to_play',
'privacy.userContext.longPressBehavior',
'toolkit.cosmeticAnimations.enabled',
'toolkit.telemetry.hybridContent.enabled',
'webgl.disable-extensions',
/* 61-68 */
'app.update.enabled',
'browser.aboutHomeSnippets.updateUrl',
'browser.chrome.errorReporter.enabled',
'browser.chrome.errorReporter.submitUrl',
'browser.chrome.favicons',
'browser.ctrlTab.previews',
'browser.fixup.hide_user_pass',
'browser.newtabpage.activity-stream.asrouter.userprefs.cfr',
'browser.newtabpage.activity-stream.disableSnippets',
'browser.onboarding.enabled',
'browser.search.countryCode',
'browser.urlbar.autocomplete.enabled',
'devtools.webide.adbAddonURL',
'devtools.webide.autoinstallADBHelper',
'dom.event.highrestimestamp.enabled',
'experiments.activeExperiment',
'experiments.enabled',
'experiments.manifest.uri',
'experiments.supported',
'lightweightThemes.update.enabled',
'media.autoplay.enabled',
'network.allow-experiments',
'network.cookie.lifetime.days',
'network.jar.block-remote-files',
'network.jar.open-unsafe-types',
'plugin.state.java',
'security.csp.enable_violation_events',
'security.csp.experimentalEnabled',
'shield.savant.enabled',
/* 60 or earlier */
'browser.bookmarks.showRecentlyBookmarked',
'browser.casting.enabled',
'browser.crashReports.unsubmittedCheck.autoSubmit',
'browser.formautofill.enabled',
'browser.formfill.saveHttpsForms',
'browser.fullscreen.animate',
'browser.history.allowPopState',
'browser.history.allowPushState',
'browser.history.allowReplaceState',
'browser.newtabpage.activity-stream.enabled',
'browser.newtabpage.directory.ping',
'browser.newtabpage.directory.source',
'browser.newtabpage.enhanced',
'browser.newtabpage.introShown',
'browser.pocket.api',
'browser.pocket.enabled',
'browser.pocket.oAuthConsumerKey',
'browser.pocket.site',
'browser.polaris.enabled',
'browser.safebrowsing.appRepURL',
'browser.safebrowsing.enabled',
'browser.safebrowsing.gethashURL',
'browser.safebrowsing.malware.reportURL',
'browser.safebrowsing.provider.google.appRepURL',
'browser.safebrowsing.reportErrorURL',
'browser.safebrowsing.reportGenericURL',
'browser.safebrowsing.reportMalwareErrorURL',
'browser.safebrowsing.reportMalwareMistakeURL',
'browser.safebrowsing.reportMalwareURL',
'browser.safebrowsing.reportPhishMistakeURL',
'browser.safebrowsing.reportURL',
'browser.safebrowsing.updateURL',
'browser.search.showOneOffButtons',
'browser.selfsupport.enabled',
'browser.selfsupport.url',
'browser.sessionstore.privacy_level_deferred',
'browser.tabs.animate',
'browser.trackingprotection.gethashURL',
'browser.trackingprotection.updateURL',
'browser.urlbar.unifiedcomplete',
'browser.usedOnWindows10.introURL',
'camera.control.autofocus_moving_callback.enabled',
'camera.control.face_detection.enabled',
'datareporting.healthreport.about.reportUrl',
'datareporting.healthreport.about.reportUrlUnified',
'datareporting.healthreport.documentServerURI',
'datareporting.healthreport.service.enabled',
'datareporting.policy.dataSubmissionEnabled.v2',
'devtools.webide.autoinstallFxdtAdapters',
'dom.archivereader.enabled',
'dom.battery.enabled',
'dom.beforeAfterKeyboardEvent.enabled',
'dom.disable_image_src_set',
'dom.disable_window_open_feature.scrollbars',
'dom.disable_window_status_change',
'dom.enable_user_timing',
'dom.flyweb.enabled',
'dom.idle-observers-api.enabled',
'dom.keyboardevent.code.enabled',
'dom.network.enabled',
'dom.push.udp.wakeupEnabled',
'dom.telephony.enabled',
'dom.vr.oculus050.enabled',
'dom.workers.enabled',
'dom.workers.sharedWorkers.enabled',
'extensions.formautofill.experimental',
'extensions.screenshots.system-disabled',
'extensions.shield-recipe-client.api_url',
'extensions.shield-recipe-client.enabled',
'full-screen-api.approval-required',
'general.useragent.locale',
'geo.security.allowinsecure',
'intl.locale.matchOS',
'loop.enabled',
'loop.facebook.appId',
'loop.facebook.enabled',
'loop.facebook.fallbackUrl',
'loop.facebook.shareUrl',
'loop.feedback.formURL',
'loop.feedback.manualFormURL',
'loop.logDomains',
'loop.server',
'media.block-play-until-visible',
'media.eme.apiVisible',
'media.eme.chromium-api.enabled',
'media.getusermedia.screensharing.allow_on_old_platforms',
'media.getusermedia.screensharing.allowed_domains',
'media.gmp-eme-adobe.autoupdate',
'media.gmp-eme-adobe.enabled',
'media.gmp-eme-adobe.visible',
'network.http.referer.userControlPolicy',
'network.http.sendSecureXSiteReferrer',
'network.http.spdy.enabled.http2draft',
'network.http.spdy.enabled.v3-1',
'network.websocket.enabled',
'pageThumbs.enabled',
'pfs.datasource.url',
'plugin.scan.Acrobat',
'plugin.scan.Quicktime',
'plugin.scan.WindowsMediaPlayer',
'plugins.enumerable_names',
'plugins.update.notifyUser',
'plugins.update.url',
'privacy.clearOnShutdown.passwords',
'privacy.donottrackheader.value',
'security.mixed_content.send_hsts_priming',
'security.mixed_content.use_hsts',
'security.ssl3.ecdhe_ecdsa_rc4_128_sha',
'security.ssl3.ecdhe_rsa_rc4_128_sha',
'security.ssl3.rsa_rc4_128_md5',
'security.ssl3.rsa_rc4_128_sha',
'security.tls.insecure_fallback_hosts.use_static_list',
'security.tls.unrestricted_rc4_fallback',
'security.xpconnect.plugin.unrestricted',
'social.directories',
'social.enabled',
'social.remote-install.enabled',
'social.share.activationPanelEnabled',
'social.shareDirectory',
'social.toast-notifications.enabled',
'social.whitelist',
'toolkit.telemetry.unifiedIsOptIn',
/* reset parrot: check your open about:config after running the script */
'_user.js.parrot'
];
console.clear();
let c = 0;
for (const sPname of aPREFS) {
if (Services.prefs.prefHasUserValue(sPname)) {
Services.prefs.clearUserPref(sPname);
if (!Services.prefs.prefHasUserValue(sPname)) {
console.info('reset', sPname);
c++;
} else console.warn('failed to reset', sPname);
}
}
focus();
const d = (c==1) ? ' pref' : ' prefs';
alert(c ? 'successfully reset ' + c + d + "\n\nfor details check the console" : 'nothing to reset');
return 'all done';
})();

View File

@ -3,10 +3,10 @@ TITLE arkenfox user.js updater
REM ## arkenfox user.js updater for Windows
REM ## author: @claustromaniac
REM ## version: 4.14
REM ## version: 4.15
REM ## instructions: https://github.com/arkenfox/user.js/wiki/3.3-Updater-Scripts
SET v=4.14
SET v=4.15
VERIFY ON
CD /D "%~dp0"
@ -23,7 +23,6 @@ IF /I "%~1"=="-merge" (SET _merge=1)
IF /I "%~1"=="-updatebatch" (SET _updateb=1)
IF /I "%~1"=="-singlebackup" (SET _singlebackup=1)
IF /I "%~1"=="-esr" (SET _esr=1)
IF /I "%~1"=="-rfpalts" (SET _rfpalts=1)
SHIFT
GOTO parse
:endparse
@ -141,10 +140,6 @@ IF EXIST user.js.new (DEL /F "user.js.new")
CALL :message "Retrieving latest user.js file from github repository..."
CALL :psdownload https://raw.githubusercontent.com/arkenfox/user.js/master/user.js "user.js.new"
IF EXIST user.js.new (
IF DEFINED _rfpalts (
CALL :message "Activating RFP Alternatives section..."
CALL :activate user.js.new "[SETUP-non-RFP]"
)
IF DEFINED _esr (
CALL :message "Activating ESR section..."
CALL :activate user.js.new ".x still uses all the following prefs"
@ -320,8 +315,6 @@ ECHO: Run without user input.
CALL :message " -singleBackup"
ECHO: Use a single backup file and overwrite it on new updates, instead of
ECHO: cumulative backups. This was the default behaviour before v4.3.
CALL :message " -rfpAlts"
ECHO: Activate RFP Alternatives section
CALL :message " -updateBatch"
ECHO: Update the script itself on execution, before the normal routine.
CALL :message ""

626
user.js
View File

@ -1,22 +1,22 @@
/******
* name: arkenfox user.js
* date: 11 October 2021
* version 92
* date: 21 January 2021
* version 96
* url: https://github.com/arkenfox/user.js
* license: MIT: https://github.com/arkenfox/user.js/blob/master/LICENSE.txt
* README:
1. Consider using Tor Browser if it meets your needs or fits your threat model
* https://www.torproject.org/about/torusers.html.en
* https://2019.www.torproject.org/about/torusers.html
2. Required reading: Overview, Backing Up, Implementing, and Maintenance entries
* https://github.com/arkenfox/user.js/wiki
3. If you skipped step 2, return to step 2
4. Make changes
* There are often trade-offs and conflicts between security vs privacy vs anti-fingerprinting
* 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 close (section 2800), change this to suit your needs
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
e.g. third party images/videos not loading on some sites? check 1601
* Take the wiki link in step 2 and read the Troubleshooting entry
@ -31,10 +31,8 @@
* It is best to use the arkenfox release that is optimized for and matches your Firefox version
* EVERYONE: each release
- run prefsCleaner to reset prefs made inactive, including deprecated (9999s)
ESR78
- If you are not using arkenfox v78... (not a definitive list)
- 1244: HTTPS-Only mode is enabled
- 4511: non-native widget theme is enforced
ESR91
- If you are not using arkenfox v91... (not a definitive list)
- 9999: switch the appropriate deprecated section(s) back on
* INDEX:
@ -53,18 +51,16 @@
1600: HEADERS / REFERERS
1700: CONTAINERS
2000: PLUGINS / MEDIA / WEBRTC
2300: WEB WORKERS
2400: DOM (DOCUMENT OBJECT MODEL)
2600: MISCELLANEOUS
2700: PERSISTENT STORAGE
2800: SHUTDOWN
4000: FPI (FIRST PARTY ISOLATION)
2700: ETP (ENHANCED TRACKING PROTECTION)
2800: SHUTDOWN & SANITIZING
4500: RFP (RESIST FINGERPRINTING)
5000: OPTIONAL OPSEC
5500: OPTIONAL HARDENING
6000: DON'T TOUCH
7000: DON'T BOTHER
8000: DON'T BOTHER: NON-RFP
8000: DON'T BOTHER: FINGERPRINTING
9000: PERSONAL
9999: DEPRECATED / REMOVED / LEGACY / RENAMED
@ -87,7 +83,7 @@ user_pref("_user.js.parrot", "0100 syntax error: the parrot's dead!");
user_pref("browser.shell.checkDefaultBrowser", false);
/* 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 (2803, 2804), and not used in Private Browsing mode
* [NOTE] Session Restore is cleared with history (2811, 2812), and not used in Private Browsing mode
* [SETTING] General>Startup>Restore previous session ***/
user_pref("browser.startup.page", 0);
/* 0103: set HOME+NEWWINDOW page
@ -104,7 +100,7 @@ user_pref("browser.newtab.preload", false);
* [SETTING] Home>Firefox Home Content>... to show/hide what you want ***/
user_pref("browser.newtabpage.activity-stream.feeds.telemetry", false);
user_pref("browser.newtabpage.activity-stream.telemetry", false);
user_pref("browser.newtabpage.activity-stream.feeds.snippets", false); // [DEFAULT: false FF89+]
user_pref("browser.newtabpage.activity-stream.feeds.snippets", false); // [DEFAULT: false]
user_pref("browser.newtabpage.activity-stream.feeds.section.topstories", false);
user_pref("browser.newtabpage.activity-stream.section.highlights.includePocket", false);
user_pref("browser.newtabpage.activity-stream.showSponsored", false);
@ -127,7 +123,7 @@ user_pref("geo.provider.use_gpsd", false); // [LINUX]
/* 0203: disable region updates
* [1] https://firefox-source-docs.mozilla.org/toolkit/modules/toolkit_modules/Region.html ***/
user_pref("browser.region.network.url", ""); // [FF78+]
user_pref("browser.region.update.enabled", false); // [[FF79+]
user_pref("browser.region.update.enabled", false); // [FF79+]
/* 0204: set search region
* [NOTE] May not be hidden if Firefox has changed your settings due to your region (0203) ***/
// user_pref("browser.search.region", "US"); // [HIDDEN PREF]
@ -135,38 +131,14 @@ user_pref("browser.region.update.enabled", false); // [[FF79+]
* [SETTING] General>Language and Appearance>Language>Choose your preferred language...
* [TEST] https://addons.mozilla.org/about ***/
user_pref("intl.accept_languages", "en-US, en");
/* 0211: use US English locale regardless of the system locale
/* 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]
* [TEST] https://arkenfox.github.io/TZP/tests/formatting.html
* [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=867501,1629630 ***/
user_pref("javascript.use_us_english_locale", true); // [HIDDEN PREF]
/*** [SECTION 0300]: QUIETER FOX ***/
user_pref("_user.js.parrot", "0300 syntax error: the parrot's not pinin' for the fjords!");
/** UPDATES ***/
/* 0301: disable auto-INSTALLING Firefox updates [NON-WINDOWS]
* [NOTE] You will still get prompts to update, and should do so in a timely manner
* [SETTING] General>Firefox Updates>Check for updates but let you choose to install them ***/
user_pref("app.update.auto", false);
/* 0302: disable auto-INSTALLING Firefox updates via a background service [FF90+] [WINDOWS]
* [SETTING] General>Firefox Updates>Automatically install updates>When Firefox is not running
* [1] https://support.mozilla.org/kb/enable-background-updates-firefox-windows ***/
user_pref("app.update.background.scheduling.enabled", false);
/* 0303: disable auto-CHECKING for extension and theme updates ***/
// user_pref("extensions.update.enabled", false);
/* 0304: disable auto-INSTALLING extension and theme updates (after the check in 0303)
* [SETTING] about:addons>Extensions>[cog-wheel-icon]>Update Add-ons Automatically (toggle) ***/
// user_pref("extensions.update.autoUpdateDefault", false);
/* 0305: disable extension metadata
* used when installing/updating an extension, and in daily background update checks:
* when false, extension detail tabs will have no description ***/
// user_pref("extensions.getAddons.cache.enabled", false);
/* 0306: 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);
/* 0307: disable System Add-on updates ***/
user_pref("extensions.systemAddon.update.enabled", false); // [FF62+]
user_pref("extensions.systemAddon.update.url", ""); // [FF44+]
/** RECOMMENDATIONS ***/
/* 0320: disable recommendation pane in about:addons (uses Google Analytics) ***/
user_pref("extensions.getAddons.showPane", false); // [HIDDEN PREF]
@ -238,16 +210,12 @@ user_pref("network.captive-portal-service.enabled", false); // [FF52+]
/* 0361: disable Network Connectivity checks [FF65+]
* [1] https://bugzilla.mozilla.org/1460537 ***/
user_pref("network.connectivity-service.enabled", false);
/* 0362: enforce disabling of Web Compatibility Reporter [FF56+]
* Web Compatibility Reporter adds a "Report Site Issue" button to send data to Mozilla ***/
user_pref("extensions.webcompat-reporter.enabled", false); // [DEFAULT: 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)
FWIW, Google also swear it is anonymized and only used to flag malicious sites.
[1] https://feeding.cloud.geek.nz/posts/how-safe-browsing-works-in-firefox/
[2] https://wiki.mozilla.org/Security/Safe_Browsing
@ -291,7 +259,7 @@ user_pref("network.dns.disablePrefetch", true);
// user_pref("network.dns.disablePrefetchFromHTTPS", true); // [DEFAULT: true]
/* 0603: disable predictor / prefetching ***/
user_pref("network.predictor.enabled", false);
// user_pref("network.predictor.enable-prefetch", false); // [FF48+] [DEFAULT: false]
user_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 ***/
user_pref("network.http.speculative-parallel-limit", 0);
@ -322,14 +290,24 @@ user_pref("network.proxy.socks_remote_dns", true);
* [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/26424 ***/
user_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. By default only smb and sftp protocols are accepted so far (as of FF64)
* 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://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/23044
* [3] https://en.wikipedia.org/wiki/GVfs
* [4] https://en.wikipedia.org/wiki/GIO_(software) ***/
* [2] https://en.wikipedia.org/wiki/GVfs
* [3] https://en.wikipedia.org/wiki/GIO_(software) ***/
user_pref("network.gio.supported-protocols", ""); // [HIDDEN PREF]
/* 0705: disable DNS-over-HTTPS (DoH) rollout [FF60+]
/* 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/ ***/
// user_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 ***/
// user_pref("network.proxy.allow_bypass", false); // [HIDDEN PREF]
/* 0710: disable DNS-over-HTTPS (DoH) rollout [FF60+]
* 0=off by default, 2=TRR (Trusted Recursive Resolver) first, 3=TRR only, 5=explicitly off
* see "doh-rollout.home-region": USA Feb 2020, Canada July 2021 [3]
* [1] https://hacks.mozilla.org/2018/05/a-cartoon-intro-to-dns-over-https/
@ -337,10 +315,6 @@ user_pref("network.gio.supported-protocols", ""); // [HIDDEN PREF]
* [3] https://blog.mozilla.org/mozilla/news/firefox-by-default-dns-over-https-rollout-in-canada/
* [4] https://www.eff.org/deeplinks/2020/12/dns-doh-and-odoh-oh-my-year-review-2020 ***/
// user_pref("network.trr.mode", 5);
/* 0706: disable proxy direct failover for system requests [FF91+]
* [WARNING] Default true is a security feature against malicious extensions
* [SETUP-CHROME] If you use a proxy and you trust your extensions ***/
// user_pref("network.proxy.failover_direct", false);
/*** [SECTION 0800]: LOCATION BAR / SEARCH BAR / SUGGESTIONS / HISTORY / FORMS ***/
user_pref("_user.js.parrot", "0800 syntax error: the parrot's ceased to be!");
@ -376,9 +350,9 @@ user_pref("browser.urlbar.speculativeConnect.enabled", false);
* [1] https://bugzilla.mozilla.org/1642623 ***/
user_pref("browser.urlbar.dnsResolveSingleWordsAfterSearch", 0);
/* 0807: disable location bar contextual suggestions [FF92+]
* [SETTING] Privacy & Security>Address Bar>Contextual Suggestions
* [SETTING] Privacy & Security>Address Bar>Suggestions from...
* [1] https://blog.mozilla.org/data/2021/09/15/data-and-firefox-suggest/ ***/
user_pref("browser.urlbar.suggest.quicksuggest", false);
user_pref("browser.urlbar.suggest.quicksuggest.nonsponsored", false); // [FF95+]
user_pref("browser.urlbar.suggest.quicksuggest.sponsored", false);
/* 0808: disable tab-to-search [FF85+]
* Alternatively, you can exclude on a per-engine basis by unchecking them in Options>Search
@ -386,7 +360,7 @@ user_pref("browser.urlbar.suggest.quicksuggest.sponsored", false);
// user_pref("browser.urlbar.suggest.engines", false);
/* 0810: disable search and form history
* [SETUP-WEB] Be aware that autocomplete form data can be read by third parties [1][2]
* [NOTE] We also clear formdata on exit (2803)
* [NOTE] We also clear formdata on exit (2811)
* [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 ***/
@ -404,7 +378,7 @@ user_pref("extensions.formautofill.heuristics.enabled", false); // [FF55+]
/* 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 close (2803). However, social engineering [2#limits][4][5]
* 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
@ -445,11 +419,10 @@ user_pref("network.http.windows-sso.enabled", false); // [DEFAULT: false]
user_pref("_user.js.parrot", "1000 syntax error: the parrot's gone to meet 'is maker!");
/* 1001: disable disk cache
* [SETUP-CHROME] If you think disk cache helps perf, then feel free to override this
* [NOTE] We also clear cache on exit (2803) ***/
* [NOTE] We also clear cache on exit (2811) ***/
user_pref("browser.cache.disk.enable", false);
/* 1002: disable media cache from writing to disk in Private Browsing
* [NOTE] MSE (Media Source Extensions) are already stored in-memory in PB
* [SETUP-WEB] ESR78: playback might break on subsequent loading (1650281) ***/
* [NOTE] MSE (Media Source Extensions) are already stored in-memory in PB ***/
user_pref("browser.privatebrowsing.forceMediaMemoryCache", true); // [FF75+]
user_pref("media.memory_cache_max_size", 65536);
/* 1003: disable storing extra session data [SETUP-CHROME]
@ -484,17 +457,18 @@ user_pref("_user.js.parrot", "1200 syntax error: the parrot's a stiff!");
* 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.
* [STATS] SSL Labs (July 2021) reports over 99% of sites have secure renegotiation [4]
* [STATS] SSL Labs (July 2021) reports over 99% of top sites have secure renegotiation [4]
* [1] https://wiki.mozilla.org/Security:Renegotiation
* [2] https://tools.ietf.org/html/rfc5746
* [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/ ***/
user_pref("security.ssl.require_safe_negotiation", true);
/* 1203: reset TLS 1.0 and 1.1 downgrades i.e. session only ***/
user_pref("security.tls.version.enable-deprecated", false); // [DEFAULT: false]
/* 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://blog.cloudflare.com/tls-1-3-overview-and-q-and-a/ ***/
* [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);
/** OCSP (Online Certificate Status Protocol)
@ -560,8 +534,8 @@ user_pref("dom.security.https_only_mode", true); // [FF76+]
/* 1245: enable HTTPS-Only mode for local resources [FF77+] ***/
// user_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 HTTP requests in order to check if the server supports HTTPS or not
* 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 ***/
user_pref("dom.security.https_only_mode_send_http_background_request", false);
@ -581,22 +555,22 @@ user_pref("browser.ssl_override_behavior", 1);
* i.e. it doesn't work for HSTS discrepancies (https://subdomain.preloaded-hsts.badssl.com/)
* [TEST] https://expired.badssl.com/ ***/
user_pref("browser.xul.error_pages.expert_bad_cert", true);
/* 1273: display "Not Secure" text on HTTP sites ***/
user_pref("security.insecure_connection_text.enabled", true); // [FF60+]
/*** [SECTION 1400]: FONTS ***/
user_pref("_user.js.parrot", "1400 syntax error: the parrot's bereft of life!");
/* 1401: disable rendering of SVG OpenType fonts ***/
user_pref("gfx.font_rendering.opentype_svg.enabled", false);
/* 1402: limit font visibility (Windows, Mac, some Linux) [FF79+]
* [NOTE] In FF80+ RFP ignores the pref and uses value 1
/* 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 (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.level", 1);
// user_pref("layout.css.font-visibility.private", 1);
// user_pref("layout.css.font-visibility.standard", 1);
// user_pref("layout.css.font-visibility.trackingprotection", 1);
/*** [SECTION 1600]: HEADERS / REFERERS
Expect some breakage e.g. banks: use an extension if you need precise control
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
@ -605,15 +579,12 @@ user_pref("gfx.font_rendering.opentype_svg.enabled", false);
user_pref("_user.js.parrot", "1600 syntax error: the parrot rests in peace!");
/* 1601: control when to send a cross-origin referer
* 0=always (default), 1=only if base domains match, 2=only if hosts match
* [SETUP-WEB] Known to cause issues with older modems/routers and some sites e.g vimeo, icloud, instagram ***/
* [SETUP-WEB] Breakage: older modems/routers and some sites e.g banks, vimeo, icloud, instagram
* If "2" is too strict, then override to "0" and use Smart Referer (Strict mode + add exceptions) ***/
user_pref("network.http.referer.XOriginPolicy", 2);
/* 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 ***/
user_pref("network.http.referer.XOriginTrimmingPolicy", 2);
/* 1603: enable the DNT (Do Not Track) HTTP header
* [NOTE] DNT is enforced with Enhanced Tracking Protection (2710)
* [SETTING] Privacy & Security>Enhanced Tracking Protection>Send websites a "Do Not Track" signal... ***/
// user_pref("privacy.donottrackheader.enabled", true);
/*** [SECTION 1700]: CONTAINERS
Check out Temporary Containers [2], read the article [3], and visit the wiki/repo [4]
@ -635,19 +606,25 @@ user_pref("privacy.userContext.ui.enabled", true);
/*** [SECTION 2000]: PLUGINS / MEDIA / WEBRTC ***/
user_pref("_user.js.parrot", "2000 syntax error: the parrot's snuffed it!");
/* 2001: disable WebRTC (Web Real-Time Communication)
* [SETUP-WEB] WebRTC can leak your IP address from behind your VPN, but if this is not
* in your threat model, and you want Real-Time Communication, this is the pref for you
* [1] https://www.privacytools.io/#webrtc ***/
user_pref("media.peerconnection.enabled", false);
/* 2002: limit WebRTC IP leaks if using WebRTC
* In FF70+ these settings match Mode 4 (Mode 3 in older versions) [3]
* Firefox uses mDNS hostname obfuscation on desktop (except Windows7/8) and the
* private IP is NEVER exposed, except if required in TRUSTED scenarios; i.e. after
* you grant device (microphone or camera) access
* [SETUP-HARDEN] Test first. Windows7/8 users only: behind a proxy who never use WebRTC
* [TEST] https://browserleaks.com/webrtc
* [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1189041,1297416,1452713
* [2] https://wiki.mozilla.org/Media/WebRTC/Privacy
* [3] https://tools.ietf.org/html/draft-ietf-rtcweb-ip-handling-12#section-5.2 ***/
* [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);
/* 2002: force WebRTC inside the proxy [FF70+] ***/
user_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/en-US/docs/Web/API/RTCIceCandidate
* [2] https://wiki.mozilla.org/Media/WebRTC/Privacy ***/
user_pref("media.peerconnection.ice.default_address_only", true);
user_pref("media.peerconnection.ice.no_host", true); // [FF51+]
user_pref("media.peerconnection.ice.proxy_only_if_behind_proxy", true); // [FF70+]
/* 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 ***/
// user_pref("media.peerconnection.ice.no_host", true);
/* 2020: disable GMP (Gecko Media Plugins)
* [1] https://wiki.mozilla.org/GeckoMediaPlugins ***/
// user_pref("media.gmp-provider.enabled", false);
@ -655,11 +632,13 @@ user_pref("media.peerconnection.ice.proxy_only_if_behind_proxy", true); // [FF70
* [NOTE] This is covered by the EME master switch (2022) ***/
// user_pref("media.gmp-widevinecdm.enabled", false);
/* 2022: disable all DRM content (EME: Encryption Media Extension)
* Optionally hide the setting which also disables the DRM prompt
* [SETUP-WEB] 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 ***/
user_pref("media.eme.enabled", false);
// user_pref("browser.eme.ui.enabled", false);
/* 2030: disable autoplay of HTML5 media [FF63+]
* 0=Allow all, 1=Block non-muted media (default), 5=Block all
* [NOTE] You can set exceptions under site permissions
@ -672,46 +651,6 @@ user_pref("media.eme.enabled", false);
* [1] https://support.mozilla.org/questions/1293231 ***/
user_pref("media.autoplay.blocking_policy", 2);
/*** [SECTION 2300]: WEB WORKERS
A worker is a JS "background task" running in a global context, i.e. it is different from
the current window. Workers can spawn new workers (must be the same origin & scheme),
including service and shared workers. Shared workers can be utilized by multiple scripts and
communicate between browsing contexts (windows/tabs/iframes) and can even control your cache.
[1] Web Workers: https://developer.mozilla.org/docs/Web/API/Web_Workers_API
[2] Worker: https://developer.mozilla.org/docs/Web/API/Worker
[3] Service Worker: https://developer.mozilla.org/docs/Web/API/Service_Worker_API
[4] SharedWorker: https://developer.mozilla.org/docs/Web/API/SharedWorker
[5] ChromeWorker: https://developer.mozilla.org/docs/Web/API/ChromeWorker
[6] Notifications: https://support.mozilla.org/questions/1165867#answer-981820
***/
user_pref("_user.js.parrot", "2300 syntax error: the parrot's off the twig!");
/* 2302: disable service workers [FF32, FF44-compat]
* Service workers essentially act as proxy servers that sit between web apps, and the
* browser and network, are event driven, and can control the web page/site they are associated
* with, intercepting and modifying navigation and resource requests, and caching resources.
* [NOTE] Service workers require HTTPS, have no DOM access, and are not supported in PB mode [1]
* [SETUP-WEB] Disabling service workers will break some sites. This pref is required true for
* service worker notifications (2304), push notifications (disabled, 2305) and service worker
* cache (2740). If you enable this pref, then check those settings as well
* [1] https://bugzilla.mozilla.org/show_bug.cgi?id=1320796#c7 ***/
user_pref("dom.serviceWorkers.enabled", false);
/* 2304: disable Web Notifications
* [NOTE] Web Notifications can also use service workers (2302) and are behind a prompt (7002)
* [1] https://developer.mozilla.org/docs/Web/API/Notifications_API ***/
// user_pref("dom.webnotifications.enabled", false); // [FF22+]
// user_pref("dom.webnotifications.serviceworker.enabled", false); // [FF44+]
/* 2305: disable Push Notifications [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
* [NOTE] Push requires service workers (2302) to subscribe to and display, and is behind
* a prompt (7002). Disabling service workers alone doesn't stop Firefox polling the
* Mozilla Push Server. To remove all subscriptions, reset your userAgentID.
* [1] https://support.mozilla.org/kb/push-notifications-firefox
* [2] https://developer.mozilla.org/docs/Web/API/Push_API ***/
user_pref("dom.push.enabled", false);
// user_pref("dom.push.userAgentID", "");
/*** [SECTION 2400]: DOM (DOCUMENT OBJECT MODEL) ***/
user_pref("_user.js.parrot", "2400 syntax error: the parrot's kicked the bucket!");
/* 2401: disable "Confirm you want to leave" dialog on page close
@ -729,7 +668,6 @@ user_pref("dom.popup_allowed_events", "click dblclick mousedown pointerdown");
/*** [SECTION 2600]: MISCELLANEOUS ***/
user_pref("_user.js.parrot", "2600 syntax error: the parrot's run down the curtain!");
/* 2601: prevent accessibility services from accessing your browser [RESTART]
* [SETTING] Privacy & Security>Permissions>Prevent accessibility services from accessing your browser (FF80 or lower)
* [1] https://support.mozilla.org/kb/accessibility-services ***/
user_pref("accessibility.force_disabled", 1);
/* 2602: disable sending additional analytics to web servers
@ -796,7 +734,9 @@ user_pref("permissions.delegation.enabled", false);
* [SETUP-CHROME] On Android this blocks longtapping and saving images
* [SETTING] General>Downloads>Always ask you where to save files ***/
user_pref("browser.download.useDownloadDir", false);
/* 2652: disable adding downloads to the system's "recent documents" list ***/
/* 2652: disable downloads panel opening on every download [FF96+] ***/
user_pref("browser.download.alwaysOpenPanel", false);
/* 2653: disable adding downloads to the system's "recent documents" list ***/
user_pref("browser.download.manager.addToRecentDocs", false);
/** EXTENSIONS ***/
@ -814,164 +754,93 @@ user_pref("extensions.postDownloadThirdPartyPrompt", false);
* [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1384330,1406795,1415644,1453988 ***/
// user_pref("extensions.webextensions.restrictedDomains", "");
/*** [SECTION 2700]: PERSISTENT STORAGE
Data SET by websites including
cookies : profile\cookies.sqlite
localStorage : profile\webappsstore.sqlite
indexedDB : profile\storage\default
serviceWorkers :
[NOTE] indexedDB and serviceWorkers are not available in Private Browsing Mode
[NOTE] Blocking cookies also blocks websites access to: localStorage (incl. sessionStorage),
indexedDB, sharedWorker, and serviceWorker (and therefore service worker cache and notifications)
If you set a site exception for cookies (either "Allow" or "Allow for Session") then they become
accessible to websites except shared/service workers where the cookie setting must be "Allow"
***/
/*** [SECTION 2700]: ETP (ENHANCED TRACKING PROTECTION) ***/
user_pref("_user.js.parrot", "2700 syntax error: the parrot's joined the bleedin' choir invisible!");
/* 2701: disable or isolate 3rd-party cookies and site-data [SETUP-WEB]
* 0 = Accept cookies and site data
* 1 = (Block) All third-party cookies
* 2 = (Block) All cookies
* 3 = (Block) Cookies from unvisited websites
* 4 = (Block) Cross-site tracking cookies (default)
* 5 = (Isolate All) Cross-site cookies (TCP: Total Cookie Protection / dFPI: dynamic FPI) [1] (FF86+)
* Option 5 with FPI enabled (4001) is ignored and not shown, and option 4 used instead
* [NOTE] You can set cookie exceptions under site permissions or use an extension
* [NOTE] Enforcing category to custom ensures ETP related prefs are always honored
* [SETTING] Privacy & Security>Enhanced Tracking Protection>Custom>Cookies
* [1] https://blog.mozilla.org/security/2021/02/23/total-cookie-protection/ ***/
user_pref("network.cookie.cookieBehavior", 1);
user_pref("browser.contentblocking.category", "custom");
/* 2702: set third-party cookies (if enabled, see 2701) to session-only
/* 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 ***/
user_pref("browser.contentblocking.category", "strict");
/* 2702: disable ETP web compat features [FF93+]
* [SETUP-HARDEN] Includes skip lists, heuristics (SmartBlock) and automatic grants
* [1] https://blog.mozilla.org/security/2021/07/13/smartblock-v2/
* [2] https://hg.mozilla.org/mozilla-central/rev/e5483fd469ab#l4.12 ***/
// user_pref("privacy.antitracking.enableWebcompat", false);
/* 2710: enable state partitioning of service workers [FF96+] ***/
user_pref("privacy.partition.serviceWorkers", true);
/*** [SECTION 2800]: SHUTDOWN & SANITIZING ***/
user_pref("_user.js.parrot", "2800 syntax error: the parrot's bleedin' demised!");
/** COOKIES + SITE DATA : ALLOWS EXCEPTIONS ***/
/* 2801: delete cookies and site data on exit
* 0=keep until they expire (default), 2=keep until you close Firefox
* [NOTE] A "cookie" block permission also controls localStorage/sessionStorage, indexedDB,
* sharedWorkers and serviceWorkers. serviceWorkers require an "Allow" permission
* [SETTING] Privacy & Security>Cookies and Site Data>Delete cookies and site data when Firefox is closed
* [SETTING] to add site exceptions: Ctrl+I>Permissions>Cookies>Allow
* If using FPI the syntax must be https://example.com/^firstPartyDomain=example.com
* [SETTING] to manage site exceptions: Options>Privacy & Security>Permissions>Settings ***/
user_pref("network.cookie.lifetimePolicy", 2);
/* 2802: delete cache on exit [FF96+]
* [NOTE] We already disable disk cache (1001) and clear on exit (2811) which is more robust
* [1] https://bugzilla.mozilla.org/1671182 ***/
// user_pref("privacy.clearsitedata.cache.enabled", true);
/* 2803: set third-party cookies to session-only
* [NOTE] .sessionOnly overrides .nonsecureSessionOnly except when .sessionOnly=false and
* .nonsecureSessionOnly=true. This allows you to keep HTTPS cookies, but session-only HTTP ones
* [1] https://feeding.cloud.geek.nz/posts/tweaking-cookies-for-privacy-in-firefox/ ***/
user_pref("network.cookie.thirdparty.sessionOnly", true);
user_pref("network.cookie.thirdparty.nonsecureSessionOnly", true); // [FF58+]
/* 2703: delete cookies and site data on close
* 0=keep until they expire (default), 2=keep until you close Firefox
* [NOTE] The setting below is disabled (but not changed) if you block all cookies (2701 = 2)
* [SETTING] Privacy & Security>Cookies and Site Data>Delete cookies and site data when Firefox is closed ***/
// user_pref("network.cookie.lifetimePolicy", 2);
/* 2710: enable Enhanced Tracking Protection (ETP) in all windows
* [SETTING] Privacy & Security>Enhanced Tracking Protection>Custom>Tracking content
* [SETTING] to add site exceptions: Urlbar>ETP Shield
* [SETTING] to manage site exceptions: Options>Privacy & Security>Enhanced Tracking Protection>Manage Exceptions ***/
user_pref("privacy.trackingprotection.enabled", true);
/* 2711: enable various ETP lists ***/
user_pref("privacy.trackingprotection.socialtracking.enabled", true);
// user_pref("privacy.trackingprotection.cryptomining.enabled", true); // [DEFAULT: true]
// user_pref("privacy.trackingprotection.fingerprinting.enabled", true); // [DEFAULT: true]
/* 2740: disable service worker cache and cache storage
* [NOTE] We clear service worker cache on exit (2803)
* [1] https://w3c.github.io/ServiceWorker/#privacy ***/
// user_pref("dom.caches.enabled", false);
/* 2750: disable Storage API [FF51+]
* The API gives sites the ability to find out how much space they can use, how much
* they are already using, and even control whether or not they need to be alerted
* before the user agent disposes of site data in order to make room for other things.
* [1] https://developer.mozilla.org/docs/Web/API/StorageManager
* [2] https://developer.mozilla.org/docs/Web/API/Storage_API
* [3] https://blog.mozilla.org/l10n/2017/03/07/firefox-l10n-report-aurora-54/ ***/
// user_pref("dom.storageManager.enabled", false);
/* 2755: disable Storage Access API [FF65+]
* [1] https://developer.mozilla.org/docs/Web/API/Storage_Access_API ***/
// user_pref("dom.storage_access.enabled", false);
/* 2760: enable Local Storage Next Generation (LSNG) [FF65+] ***/
user_pref("dom.storage.next_gen", true); // [DEFAULT: true FF92+]
/*** [SECTION 2800]: SHUTDOWN
* Sanitizing on shutdown is all or nothing. It does not use Managed Exceptions under
Privacy & Security>Delete cookies and site data when Firefox is closed (1681701)
* If you want to keep some sites' cookies (exception as "Allow") and optionally other site
data but clear all the rest on close, then you need to set the "cookie" and optionally the
"offlineApps" prefs below to false, and to set the cookie lifetime pref to 2 (2703)
***/
user_pref("_user.js.parrot", "2800 syntax error: the parrot's bleedin' demised!");
/* 2802: enable Firefox to clear items on shutdown (2803)
/** SANITIZE ON SHUTDOWN : ALL OR NOTHING ***/
/* 2810: enable Firefox to clear items on shutdown (2811)
* [SETTING] Privacy & Security>History>Custom Settings>Clear history when Firefox closes ***/
user_pref("privacy.sanitize.sanitizeOnShutdown", true);
/* 2803: set what items to clear on shutdown (if 2802 is true) [SETUP-CHROME]
/* 2811: set/enforce what items to clear on shutdown (if 2810 is true) [SETUP-CHROME]
* These items do not use exceptions, it is all or nothing (1681701)
* [NOTE] If "history" is true, downloads will also be cleared
* [NOTE] Active Logins: does not refer to logins via cookies, but rather HTTP Basic Authentication [1]
* [NOTE] Offline Website Data: localStorage, service worker cache, QuotaManager (IndexedDB, asm-cache)
* [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)
* [SETTING] Privacy & Security>History>Custom Settings>Clear history when Firefox closes>Settings
* [1] https://en.wikipedia.org/wiki/Basic_access_authentication ***/
user_pref("privacy.clearOnShutdown.cache", true);
user_pref("privacy.clearOnShutdown.cookies", true);
user_pref("privacy.clearOnShutdown.downloads", true); // see note above
user_pref("privacy.clearOnShutdown.formdata", true); // Form & Search History
user_pref("privacy.clearOnShutdown.history", true); // Browsing & Download History
user_pref("privacy.clearOnShutdown.offlineApps", true); // Offline Website Data
user_pref("privacy.clearOnShutdown.sessions", true); // Active Logins
user_pref("privacy.clearOnShutdown.siteSettings", false); // Site Preferences
/* 2804: reset default items to clear with Ctrl-Shift-Del (to match 2803) [SETUP-CHROME]
user_pref("privacy.clearOnShutdown.cache", true); // [DEFAULT: true]
user_pref("privacy.clearOnShutdown.downloads", true); // [DEFAULT: true]
user_pref("privacy.clearOnShutdown.formdata", true); // [DEFAULT: true]
user_pref("privacy.clearOnShutdown.history", true); // [DEFAULT: true]
user_pref("privacy.clearOnShutdown.sessions", true); // [DEFAULT: true]
user_pref("privacy.clearOnShutdown.offlineApps", false); // [DEFAULT: false]
user_pref("privacy.clearOnShutdown.cookies", false);
// user_pref("privacy.clearOnShutdown.siteSettings", false); // [DEFAULT: false]
/* 2812: reset default items to clear with Ctrl-Shift-Del (to match 2811) [SETUP-CHROME]
* 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
* [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" ***/
user_pref("privacy.cpd.cache", true);
user_pref("privacy.cpd.cookies", true);
user_pref("privacy.cpd.cache", true); // [DEFAULT: true]
user_pref("privacy.cpd.formdata", true); // [DEFAULT: true]
user_pref("privacy.cpd.history", true); // [DEFAULT: true]
user_pref("privacy.cpd.sessions", true); // [DEFAULT: true]
user_pref("privacy.cpd.offlineApps", false); // [DEFAULT: false]
user_pref("privacy.cpd.cookies", false);
// user_pref("privacy.cpd.downloads", true); // not used, see note above
user_pref("privacy.cpd.formdata", true); // Form & Search History
user_pref("privacy.cpd.history", true); // Browsing & Download History
user_pref("privacy.cpd.offlineApps", true); // Offline Website Data
user_pref("privacy.cpd.passwords", false); // this is not listed
user_pref("privacy.cpd.sessions", true); // Active Logins
user_pref("privacy.cpd.siteSettings", false); // Site Preferences
/* 2805: clear Session Restore data when sanitizing on shutdown or manually [FF34+]
* [NOTE] Not needed if Session Restore is not used (0102) or is already cleared with history (2803)
// user_pref("privacy.cpd.passwords", false); // [DEFAULT: false] not listed
// user_pref("privacy.cpd.siteSettings", false); // [DEFAULT: false]
/* 2813: clear Session Restore data when sanitizing on shutdown or manually [FF34+]
* [NOTE] Not needed if Session Restore is not used (0102) or it is already cleared with history (2811)
* [NOTE] privacy.clearOnShutdown.openWindows prevents resuming from crashes (also see 5008)
* [NOTE] privacy.cpd.openWindows has a bug that causes an additional window to open ***/
// user_pref("privacy.clearOnShutdown.openWindows", true);
// user_pref("privacy.cpd.openWindows", true);
/* 2806: reset default "Time range to clear" for "Clear Recent History" (2804)
/* 2814: reset default "Time range to clear" for "Clear Recent History" (2812)
* 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 ***/
user_pref("privacy.sanitize.timeSpan", 0);
/*** [SECTION 4000]: FPI (FIRST PARTY ISOLATION)
1278037 - indexedDB (FF51+)
1277803 - favicons (FF52+)
1264562 - OCSP cache (FF52+)
1268726 - Shared Workers (FF52+)
1316283 - SSL session cache (FF52+)
1317927 - media cache (FF53+)
1323644 - HSTS and HPKP (FF54+)
1334690 - HTTP Alternative Services (FF54+)
1334693 - SPDY/HTTP2 (FF55+)
1337893 - DNS cache (FF55+)
1344170 - blob: URI (FF55+)
1300671 - data:, about: URLs (FF55+)
1473247 - IP addresses (FF63+)
1542309 - top-level domain URLs when host is in the public suffix list (FF68+)
1506693 - pdfjs range-based requests (FF68+)
1330467 - site permissions (FF69+)
1534339 - IPv6 (FF73+)
1721858 - WebSocket (FF92+)
***/
user_pref("_user.js.parrot", "4000 syntax error: the parrot's pegged out");
/* 4001: enable First Party Isolation [FF51+]
* [SETUP-WEB] Breaks some cross-origin logins
* [1] https://bugzilla.mozilla.org/buglist.cgi?bug_id=1260931,1299996 ***/
user_pref("privacy.firstparty.isolate", true);
/* 4002: enforce FPI restriction for window.opener [FF54+]
* [NOTE] Setting this to false may reduce the breakage in 4001
* FF65+ blocks postMessage with targetOrigin "*" if originAttributes don't match. But
* to reduce breakage it ignores the 1st-party domain (FPD) originAttribute [2][3]
* The 2nd pref removes that limitation and will only allow communication if FPDs also match
* [1] https://bugzilla.mozilla.org/1319773#c22
* [2] https://bugzilla.mozilla.org/1492607
* [3] https://developer.mozilla.org/docs/Web/API/Window/postMessage ***/
// user_pref("privacy.firstparty.isolate.restrict_opener_access", true); // [DEFAULT: true]
// user_pref("privacy.firstparty.isolate.block_post_message", true);
/* 4003: enable scheme with FPI [FF78+]
* [NOTE] Experimental: existing data and site permissions are incompatible
* and some site exceptions may not work e.g. HTTPS-only mode (1244) ***/
// user_pref("privacy.firstparty.isolate.use_site", true);
/*** [SECTION 4500]: RFP (RESIST FINGERPRINTING)
RFP covers a wide range of ongoing fingerprinting solutions.
It is an all-or-nothing buy in: you cannot pick and choose what parts you want
@ -981,14 +850,13 @@ user_pref("privacy.firstparty.isolate", true);
418986 - limit window.screen & CSS media queries (FF41)
[TEST] https://arkenfox.github.io/TZP/tzp.html#screen
1281949 - spoof screen orientation (FF50)
1281963 - hide contents of navigator.plugins and navigator.mimeTypes (FF50-88)
1330890 - spoof timezone as UTC0 (FF55)
1360039 - spoof navigator.hardwareConcurrency as 2 (FF55)
1217238 - reduce precision of time exposed by javascript (FF55)
FF56
1369303 - spoof/disable performance API
1333651 - spoof User Agent & Navigator API
JS: FF91+ the version is spoofed as ESR, and the OS as Windows 10, OS 10.15, Android 10, or Linux
JS: the version is spoofed as ESR, and the OS 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
@ -1001,8 +869,6 @@ user_pref("privacy.firstparty.isolate", true);
1217290 & 1409677 - enable some fingerprinting resistance for WebGL
1382545 - reduce fingerprinting in Animation API
1354633 - limit MediaError.message to a whitelist
1382533 & 1697680 - enable fingerprinting resistance for Presentation API (FF57-87)
Blocks exposure of local IP Addresses via mDNS (Multicast DNS)
FF58-90
967895 - spoof canvas and enable site permission prompt (FF58)
1372073 - spoof/block fingerprinting in MediaDevices API (FF59)
@ -1034,12 +900,11 @@ user_pref("_user.js.parrot", "4500 syntax error: the parrot's popped 'is clogs")
* RFP also has a few side effects: mainly timezone is UTC0, and websites will prefer light theme
* [1] https://bugzilla.mozilla.org/418986 ***/
user_pref("privacy.resistFingerprinting", true);
/* 4502: set new window sizes to round to hundreds [FF55+] [SETUP-CHROME]
* Width will round down to multiples of 200s and height to 100s, to fit your screen.
* The max values are a starting point to round from if you want some control
/* 4502: 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", 1000);
// user_pref("privacy.window.maxInnerHeight", 1000);
user_pref("privacy.window.maxInnerWidth", 1600);
user_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 ***/
@ -1060,19 +925,21 @@ user_pref("privacy.resistFingerprinting.letterboxing", true); // [HIDDEN PREF]
* [1] https://bugzilla.mozilla.org/1635603 ***/
// user_pref("privacy.resistFingerprinting.exemptedDomains", "*.example.invalid");
// user_pref("privacy.resistFingerprinting.testGranularityMask", 0);
/* 4506: disable showing about:blank as soon as possible during startup [FF60+]
/* 4506: set RFP's font visibility level (1402) [FF94+] ***/
// user_pref("layout.css.font-visibility.resistFingerprinting", 1); // [DEFAULT: 1]
/* 4507: disable showing about:blank as soon as possible during startup [FF60+]
* When default true this no longer masks the RFP chrome resizing activity
* [1] https://bugzilla.mozilla.org/1448423 ***/
user_pref("browser.startup.blankWindow", false);
/* 4510: enforce no system colors
/* 4510: disable using system colors
* [SETTING] General>Language and Appearance>Fonts and Colors>Colors>Use system colors ***/
user_pref("browser.display.use_system_colors", false); // [DEFAULT: false]
user_pref("browser.display.use_system_colors", false); // [DEFAULT false NON-WINDOWS]
/* 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 ***/
user_pref("widget.non-native-theme.enabled", true); // [DEFAULT: true FF89+]
user_pref("widget.non-native-theme.enabled", true); // [DEFAULT: true]
/* 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.
@ -1122,7 +989,7 @@ user_pref("_user.js.parrot", "5000 syntax error: the parrot's taken 'is last bow
/* 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 close, use PB mode
* control that instead; e.g. disable history, clear history on exit, use PB mode
* [NOTE] favicons.sqlite is sanitized on Firefox close ***/
// user_pref("browser.chrome.site_icons", false);
/* 5007: exclude "Undo Closed Tabs" in Session Restore ***/
@ -1146,7 +1013,7 @@ user_pref("_user.js.parrot", "5000 syntax error: the parrot's taken 'is last bow
* [1] https://support.mozilla.org/kb/address-bar-autocomplete-firefox#w_url-autocomplete ***/
// user_pref("browser.urlbar.autoFill", false);
/* 5013: disable browsing and download history
* [NOTE] We also clear history and downloads on exit (2803)
* [NOTE] We also clear history and downloads on exit (2811)
* [SETTING] Privacy & Security>History>Custom Settings>Remember browsing and download history ***/
// user_pref("places.history.enabled", false);
/* 5014: disable Windows jumplist [WINDOWS] ***/
@ -1182,9 +1049,10 @@ user_pref("_user.js.parrot", "5500 syntax error: this is an ex-parrot!");
* [3] https://rh0dev.github.io/blog/2017/the-return-of-the-jit/ ***/
// user_pref("javascript.options.asmjs", false);
/* 5505: disable Ion and baseline JIT to harden against JS exploits
* [NOTE] In FF75+, when **both** Ion and JIT are disabled, **and** the new
* hidden pref is enabled, then Ion can still be used by extensions (1599226)
* [1] https://cve.mitre.org/cgi-bin/cvekey.cgi?keyword=firefox+jit ***/
* [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/ ***/
// user_pref("javascript.options.ion", false);
// user_pref("javascript.options.baselinejit", false);
// user_pref("javascript.options.jit_trustedprincipals", true); // [FF75+] [HIDDEN PREF]
@ -1215,29 +1083,38 @@ user_pref("security.csp.enable", true); // [DEFAULT: true]
user_pref("security.dialog_enable_delay", 1000); // [DEFAULT: 1000]
/* 6005: enforce window.opener protection [FF65+]
* Makes rel=noopener implicit for target=_blank in anchor and area elements when no rel attribute is set ***/
user_pref("dom.targetBlankNoOpener.enabled", true); // [DEFAULT: true FF79+]
user_pref("dom.targetBlankNoOpener.enabled", true); // [DEFAULT: true]
/* 6006: enforce "window.name" protection [FF82+]
* 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
* [TEST] https://arkenfox.github.io/TZP/tests/windownamea.html ***/
user_pref("privacy.window.name.update.enabled", true); // [DEFAULT: true FF86+]
/* 6050: prefsCleaner: reset previously active items removed from arkenfox in 79-91 ***/
// user_pref("browser.newtabpage.activity-stream.asrouter.providers.snippets", "");
// user_pref("browser.send_pings.require_same_host", "");
// user_pref("dom.allow_cut_copy", "");
// user_pref("dom.vibrator.enabled", "");
// user_pref("media.getusermedia.audiocapture.enabled", "");
// user_pref("media.getusermedia.browser.enabled", "");
// user_pref("media.getusermedia.screensharing.enabled", "");
// user_pref("media.gmp-widevinecdm.visible", "");
// user_pref("network.http.redirection-limit", "");
// user_pref("privacy.partition.network_state", "");
// user_pref("security.insecure_connection_icon.enabled", ""); // [DEFAULT: true FF70+]
// user_pref("security.mixed_content.block_active_content", ""); // [DEFAULT: true since at least FF60]
// user_pref("security.ssl.enable_ocsp_stapling", ""); // [DEFAULT: true FF26+]
// user_pref("webgl.disable-fail-if-major-performance-caveat", ""); // [DEFAULT: true FF86+]
// user_pref("webgl.enable-webgl2", "");
// user_pref("webgl.min_capability_mode", "");
user_pref("privacy.window.name.update.enabled", true); // [DEFAULT: true]
/* 0607: enforce Local Storage Next Generation (LSNG) [FF65+] ***/
user_pref("dom.storage.next_gen", true); // [DEFAULT: true FF92+]
/* 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 ***/
user_pref("privacy.firstparty.isolate", false); // [DEFAULT: false]
/* 6009: enforce SmartBlock shims [FF81+]
* In FF96+ these are listed in about:compat
* [1] https://blog.mozilla.org/security/2021/03/23/introducing-smartblock/ ***/
user_pref("extensions.webcompat.enable_shims", true); // [DEFAULT: true]
/* 6010: enforce/reset TLS 1.0/1.1 downgrades to session only
* [NOTE] In FF97+ the TLS 1.0/1.1 downgrade UX was removed
* [TEST] https://tls-v1-1.badssl.com:1010/ ***/
user_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 ***/
user_pref("extensions.webcompat-reporter.enabled", false); // [DEFAULT: false]
/* 6050: prefsCleaner: reset items removed from arkenfox FF92+ ***/
// user_pref("dom.caches.enabled", "");
// user_pref("dom.storageManager.enabled", "");
// user_pref("dom.storage_access.enabled", "");
// user_pref("privacy.firstparty.isolate.block_post_message", "");
// user_pref("privacy.firstparty.isolate.restrict_opener_access", "");
// user_pref("privacy.firstparty.isolate.use_site", "");
// user_pref("security.insecure_connection_text.enabled", "");
/*** [SECTION 7000]: DON'T BOTHER ***/
user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies!");
@ -1272,18 +1149,18 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
// user_pref("security.ssl3.rsa_aes_256_gcm_sha384", false); // no PFS
// user_pref("security.ssl3.rsa_aes_128_sha", false); // no PFS
// user_pref("security.ssl3.rsa_aes_256_sha", false); // no PFS
// user_pref("security.ssl3.rsa_des_ede3_sha", false); // 3DES
/* 7004: control TLS versions
* [WHY] Passive fingerprinting. Downgrades are still possible: behind user interaction ***/
* [WHY] Passive fingerprinting and security ***/
// user_pref("security.tls.version.min", 3); // [DEFAULT: 3]
// user_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+) or when using FPI and/or containers ***/
* [WHY] Passive fingerprinting and perf costs. These are session-only
* and isolated with network partitioning (FF85+) and/or containers ***/
// user_pref("security.ssl.disable_session_identifiers", true); // [HIDDEN PREF]
/* 7006: onions
* [WHY] Firefox doesn't support hidden services. Use Tor Browser ***/
// user_pref("dom.securecontext.whitelist_onions", true); // 1382359
// user_pref("dom.securecontext.allowlist_onions", true); // [FF97+] 1382359/1744006
// user_pref("network.http.referer.hideOnionSource", true); // 1305144
/* 7007: referers
* [WHY] Only cross-origin referers (1600s) need control ***/
@ -1292,7 +1169,7 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
/* 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 ***/
// user_pref("network.http.referer.defaultPolicy", 2); // [DEFAULT: 2 FF87+]
// user_pref("network.http.referer.defaultPolicy", 2); // [DEFAULT: 2]
// user_pref("network.http.referer.defaultPolicy.pbmode", 2); // [DEFAULT: 2]
/* 7009: disable HTTP2
* [WHY] Passive fingerprinting. ~50% of sites use HTTP2 [1]
@ -1302,9 +1179,9 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
// user_pref("network.http.spdy.enabled.http2", false);
// user_pref("network.http.spdy.websockets", false); // [FF65+]
/* 7010: disable HTTP Alternative Services [FF37+]
* [WHY] Already isolated by network partitioning (FF85+) or FPI ***/
* [WHY] Already isolated with network partitioning (FF85+) ***/
// user_pref("network.http.altsvc.enabled", false);
// user_pref("network.http.altsvc.oe", false);
// user_pref("network.http.altsvc.oe", false); // [DEFAULT: false FF94+]
/* 7011: disable website control over browser right-click context menu
* [WHY] Just use Shift-Right-Click ***/
// user_pref("dom.event.contextmenu.enabled", false);
@ -1318,8 +1195,38 @@ user_pref("_user.js.parrot", "7000 syntax error: the parrot's pushing up daisies
* [WHY] Fingerprintable. Breakage. Cut/copy/paste require user
* interaction, and paste is limited to focused editable fields ***/
// user_pref("dom.event.clipboardevents.enabled", false);
/* 7014: disable System Add-on updates
* [WHY] It can compromise security. System addons ship with prefs, use those ***/
// user_pref("extensions.systemAddon.update.enabled", false); // [FF62+]
// user_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) ***/
// user_pref("privacy.donottrackheader.enabled", true);
/* 7016: customize ETP settings
* [WHY] Arkenfox only supports strict (2701) which sets these at runtime ***/
// user_pref("network.cookie.cookieBehavior", 5);
// user_pref("network.http.referer.disallowCrossSiteRelaxingDefault", true);
// user_pref("privacy.partition.network_state.ocsp_cache", true);
// user_pref("privacy.trackingprotection.enabled", true);
// user_pref("privacy.trackingprotection.socialtracking.enabled", true);
// user_pref("privacy.trackingprotection.cryptomining.enabled", true); // [DEFAULT: true]
// user_pref("privacy.trackingprotection.fingerprinting.enabled", true); // [DEFAULT: true]
/* 7017: disable service workers [FF32, FF44-compat]
* [WHY] Already isolated (FF96+) with TCP (2701) behind a pref (2710)
* or blocked with TCP in 3rd parties (FF95 or lower) ***/
// user_pref("dom.serviceWorkers.enabled", false);
/* 7018: disable Web Notifications
* [WHY] Web Notifications are behind a prompt (7002)
* [1] https://blog.mozilla.org/en/products/firefox/block-notification-requests/ ***/
// user_pref("dom.webnotifications.enabled", false); // [FF22+]
// user_pref("dom.webnotifications.serviceworker.enabled", false); // [FF44+]
/* 7019: disable Push Notifications [FF44+]
* [WHY] Push requires subscription
* [NOTE] To remove all subscriptions, reset "dom.push.userAgentID"
* [1] https://support.mozilla.org/kb/push-notifications-firefox ***/
// user_pref("dom.push.enabled", false);
/*** [SECTION 8000]: DON'T BOTHER: NON-RFP
/*** [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
***/
@ -1361,18 +1268,29 @@ user_pref("browser.startup.homepage_override.mstone", "ignore"); // master switc
// user_pref("startup.homepage_welcome_url.additional", "");
// user_pref("startup.homepage_override_url", ""); // What's New page after updates
/* WARNINGS ***/
// user_pref("browser.tabs.warnOnClose", false);
// user_pref("browser.tabs.warnOnClose", false); // [DEFAULT false FF94+]
// user_pref("browser.tabs.warnOnCloseOtherTabs", false);
// user_pref("browser.tabs.warnOnOpen", false);
// user_pref("browser.warnOnQuitShortcut", false); // [FF94+]
// user_pref("full-screen-api.warning.delay", 0);
// user_pref("full-screen-api.warning.timeout", 0);
/* UPDATES ***/
// user_pref("app.update.auto", false); // [NON-WINDOWS] disable auto app updates
// [NOTE] You will still get prompts to update, and should do so in a timely manner
// [SETTING] General>Firefox Updates>Check for updates but let you choose to install them
// user_pref("browser.search.update", false); // disable search engine updates (e.g. OpenSearch)
// [NOTE] This does not affect Mozilla's built-in or Web Extension search engines
// user_pref("extensions.update.enabled", false); // disable extension and theme update checks
// user_pref("extensions.update.autoUpdateDefault", false); // disable installing extension and theme updates
// [SETTING] about:addons>Extensions>[cog-wheel-icon]>Update Add-ons Automatically (toggle)
// user_pref("extensions.getAddons.cache.enabled", false); // disable extension metadata (extension detail tab)
/* APPEARANCE ***/
// user_pref("browser.download.autohideButton", false); // [FF57+]
// user_pref("ui.systemUsesDarkTheme", 1); // [FF67+] [HIDDEN PREF]
// 0=light, 1=dark: with RFP this only affects chrome
// user_pref("toolkit.legacyUserProfileCustomizations.stylesheets", true); // [FF68+] allow userChrome/userContent
// user_pref("ui.prefersReducedMotion", 1); // disable chrome animations [FF77+] [RESTART] [HIDDEN PREF]
// 0=no-preference, 1=reduce: with RFP this only affects chrome
// user_pref("ui.systemUsesDarkTheme", 1); // [FF67+] [HIDDEN PREF]
// 0=light, 1=dark: with RFP this only affects chrome
/* CONTENT BEHAVIOR ***/
// user_pref("accessibility.typeaheadfind", true); // enable "Find As You Type"
// user_pref("clipboard.autocopy", false); // disable autocopy default [LINUX]
@ -1402,68 +1320,30 @@ user_pref("browser.newtabpage.activity-stream.asrouter.userprefs.cfr.features",
// user_pref("xpinstall.signatures.required", false); // enforced extension signing (Nightly/ESR)
/*** [SECTION 9999]: DEPRECATED / REMOVED / LEGACY / RENAMED
Documentation denoted as [-]. Items deprecated in FF78 or earlier have been archived at [1]
Documentation denoted as [-]. Items deprecated prior to FF91 have been archived at [1]
[1] https://github.com/arkenfox/user.js/issues/123
***/
user_pref("_user.js.parrot", "9999 syntax error: the parrot's shuffled off 'is mortal coil!");
/* ESR78.x still uses all the following prefs
/* ESR91.x still uses all the following prefs
// [NOTE] replace the * with a slash in the line above to re-enable them
// FF79
// 0212: enforce fallback text encoding to match en-US
// When the content or server doesn't declare a charset the browser will
// fallback to the "Current locale" based on your application language
// [TEST] https://hsivonen.com/test/moz/check-charset.htm
// [1] https://gitlab.torproject.org/tpo/applications/tor-browser/-/issues/20025
// [-] https://bugzilla.mozilla.org/1603712
user_pref("intl.charset.fallback.override", "windows-1252");
// FF82
// 0206: disable geographically specific results/search engines e.g. "browser.search.*.US"
// i.e. ignore all of Mozilla's various search engines in multiple locales
// [-] https://bugzilla.mozilla.org/1619926
user_pref("browser.search.geoSpecificDefaults", false);
user_pref("browser.search.geoSpecificDefaults.url", "");
// FF86
// 1205: disable SSL Error Reporting
// [1] https://firefox-source-docs.mozilla.org/main/65.0/browser/base/sslerrorreport/preferences.html
// [-] https://bugzilla.mozilla.org/1681839
user_pref("security.ssl.errorReporting.automatic", false);
user_pref("security.ssl.errorReporting.enabled", false);
user_pref("security.ssl.errorReporting.url", "");
// 2653: disable hiding mime types (Options>General>Applications) not associated with a plugin
// [-] https://bugzilla.mozilla.org/1581678
user_pref("browser.download.hide_plugins_without_extensions", false);
// FF87
// 0105d: disable Activity Stream recent Highlights in the Library [FF57+]
// [-] https://bugzilla.mozilla.org/1689405
// user_pref("browser.library.activity-stream.enabled", false);
// 8002: disable PointerEvents
// [1] https://developer.mozilla.org/docs/Web/API/PointerEvent
// [-] https://bugzilla.mozilla.org/1688105
// user_pref("dom.w3c_pointer_events.enabled", false);
// FF89
// 0309: disable sending Flash crash reports
// [-] https://bugzilla.mozilla.org/1682030 [underlying NPAPI code removed]
user_pref("dom.ipc.plugins.flash.subprocess.crashreporter.enabled", false);
// 0310: disable sending the URL of the website where a plugin crashed
// [-] https://bugzilla.mozilla.org/1682030 [underlying NPAPI code removed]
user_pref("dom.ipc.plugins.reportCrashURL", false);
// 1243: block unencrypted requests from Flash on encrypted pages to mitigate MitM attacks [FF59+]
// [1] https://bugzilla.mozilla.org/1190623
// [-] https://bugzilla.mozilla.org/1682030 [underlying NPAPI code removed]
user_pref("security.mixed_content.block_object_subrequest", true);
// 1803: disable Flash plugin
// 0=deactivated, 1=ask, 2=enabled
// ESR52.x is the last branch to fully support NPAPI, FF52+ stable only supports Flash
// [NOTE] You can still override individual sites via site permissions
// [-] https://bugzilla.mozilla.org/1682030 [underlying NPAPI code removed]
user_pref("plugin.state.flash", 0); // [DEFAULT: 1]
// FF90
// 0708: disable FTP [FF60+]
// [-] https://bugzilla.mozilla.org/1574475
// user_pref("network.ftp.enabled", false); // [DEFAULT: false FF88+]
// 7001: enforce no offline cache storage (appCache) [FF71+]
// [-] https://bugzilla.mozilla.org/1694662
user_pref("browser.cache.offline.storage.enable", false); // [DEFAULT: false FF84+]
// FF93
// 7003: disable non-modern cipher suites
// [-] https://bugzilla.mozilla.org/1724072
// user_pref("security.ssl3.rsa_des_ede3_sha", false); // 3DES
// FF94
// 1402: limit font visibility (Windows, Mac, some Linux) [FF79+] - replaced by new 1402
// [-] https://bugzilla.mozilla.org/1715507
// user_pref("layout.css.font-visibility.level", 1);
// FF95
// 0807: disable location bar contextual suggestions [FF92+] - replaced by new 0807
// [-] https://bugzilla.mozilla.org/1735976
user_pref("browser.urlbar.suggest.quicksuggest", false);
// FF96
// 0302: disable auto-INSTALLING Firefox updates via a background service + hide the setting [FF90+] [WINDOWS]
// [SETTING] General>Firefox Updates>Automatically install updates>When Firefox is not running
// [1] https://support.mozilla.org/kb/enable-background-updates-firefox-windows
// [-] https://bugzilla.mozilla.org/1738983
user_pref("app.update.background.scheduling.enabled", false);
// ***/
/* END: internal custom pref to test for syntax errors ***/

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