Support/Firefox141: Difference between revisions

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{| class="wikitable"
!colspan="2"| Inference process uses 100% CPU
|-
|'''Description:'''
| The team noticed reports on multiple Reddit threads about inference process uses 100% CPU
|-
|'''Status:'''
| Resolved
|-
|'''Product(s) impacted:'''
| Firefox Release v141
|-
|'''Associated bug:'''
| [https://bugzilla.mozilla.org/show_bug.cgi?id=1982278]
|-
|'''Resolution/workaround:'''
| The inference process turned out to be related to an experiment (not the automated tab grouping) we run on select users on v141. The team decided to turn off the experiment, which solved the issue.
|}


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Latest revision as of 08:50, 21 August 2025

Mozilla L10n Main | About | Join SUMO | Meet the team | Releases information | Meetings | Blog | Resources


Firefox 141 release information

Disclaimer

The following information is intended for members of the Mozilla Support community for the purpose of supporting users in the Mozilla Support platform. Mozilla Support is a community of enthusiastic volunteers and employees trying to support Mozilla's users around the globe. You can join us by contributing through the following ways:

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To learn more about how to stay updated with Firefox release information, trending, and known issues, please also check out How to stay updated with Firefox release

Release notes

Dot releases

Platform Version Release date Notable fixes Unresolved
Firefox & Focus for Android 141.0.1 Jul 28, 2025 Various bug fixes (including bug1977340) -
Firefox Desktop 141.0.2 Aug 5, 2025 Various bug fixes -
Firefox & Focus for Android 141.0.2 Aug 5, 2025 Various bug fixes -
Firefox Desktop 141.0.3 Aug 7, 2025 bug1980081 -
Firefox & Focus for Android 141.0.3 Aug 7, 2025 bug1980081 -

Bug & feedback boards

Contributor discussions

Please refer to the following contributor forum threads to learn more about known issues and discuss with other contributors:

You can also join our Matrix channel to ask questions/join community discussion.

Stay updated

Apart from sharing release information, there are other ways to stay updated with product release and community updates:

  • Community call: We run a monthly community call (usually on the same week we release a new Firefox version). Check our schedule here and don't hesitate to join the call in person if you can!
  • Newsletter: Consider subscribing to Firefox Daily Digest to get daily updates (Mon-Fri) about Firefox from across the internet.

What's new in Firefox 141

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Content in this page is being updated periodically as we're rolling out the release.

Firefox Desktop content update

Semantic History Search update
Description: SUMO Update the search article to add Semantic History Search experiment
Content request: https://bugzilla.mozilla.org/show_bug.cgi?id=1974664
KB article: https://support.mozilla.org/kb/search-firefox-address-bar Article update
Address autofill update
Description: Update to address autofill article - Brazil, Spain and Japan rollout
Content request: https://bugzilla.mozilla.org/show_bug.cgi?id=1975536
KB article: https://support.mozilla.org/kb/automatically-fill-your-address-web-forms/ Article update
Add Trending Searches Content
Description: Add content describing trending searches at the previously requested in-product url location
Content request: https://bugzilla.mozilla.org/show_bug.cgi?id=1976937
KB article: TBD New article


Firefox for Android content update

SUMO article about Android Menu Redesign
Description: Android menu redesign in Firefox for Android
Content request: https://bugzilla.mozilla.org/show_bug.cgi?id=1890620
KB article: https://support.mozilla.org/kb/explore-firefox-android-menu/ New article
Recommended stories expansion on Android
Description: Recommended stories expansion
Content request: https://bugzilla.mozilla.org/show_bug.cgi?id=1977945
KB article: https://support.mozilla.org/en-US/kb/customize-firefox-home-screen Article update

Firefox for iOS content update

Recommended stories expansion on iOS
Description: Recommended stories expansion
Content request: https://bugzilla.mozilla.org/show_bug.cgi?id=1977945
KB article: https://support.mozilla.org/en-US/kb/customize-firefox-home-ios Article update

Known studies/experiments

Platform Studies/experiments Description Related documentation/discussion Forum tag
Firefox desktop Semantic History Search Some select users will be able to try out the Semantic History search feature https://support.mozilla.org/kb/search-firefox-address-bar#w_semantic-history-search -
Firefox desktop Address autofill rollout in Japan and Spain Address autofill rollout for users in Japan and Spain https://support.mozilla.org/en-US/kb/automatically-fill-your-address-web-forms -
Firefox desktop Onboarding checklist This experiment displays a checklist to new users to assist in their first experience using Firefox - -
Firefox desktop Account adoption Mozilla account and free VPN promo - -

Trending requests

Platform Request Related discussions Status
Desktop Split-screen/Tab-in-Tab feature [1] In development
Desktop Synced tab groups [2] Tracking
Desktop Customizable bookmark toolbar font [3] Tracking
Desktop Customizable hotkeys [4] Tracking
Desktop Differentiate "Site you save" and "Sites you visit" in new tab [5] [6] Tracking
Android Android address bar is too cluttered [7] [8] [9] [10] [11] Tracking
Android Add a setting to enable tab strip ConnectBugzilla Tracking
iOS Default page zoom setting [12] In progress
iOS Translate feature in Firefox for iOS [13] Tracking

For other top requests on Mozilla Connect, please check out this Connect thread

Known issues

Platform Category Issue Known bug/Related discussions Fix/workaround
Desktop UI/UX Firefox 141 doesn't honor system theme with dark mode on Linux Mint devices [14] Manually select Dark theme instead of System theme (to be confirmed)
Desktop UI/UX New Tab page customization button (pencil icon) won't be available if new tabs are set to blank page Bug1978728 This seems to be a confusion
Desktop Webcompat www.xfinity.com/stream stucks loading bug1977318 Enable uBlock Origin
Desktop Crashes Startup crashes caused by MS's Family Safety feature [15] turn off the Family Safety feature temporarily
Desktop Webcompat NYT tells me I am a bot and will not let me read articles #162420 Disable extensions
Desktop Webcompat Facebook audio and video call isn't working in Firefox bug1896361 -
Desktop UI/UX In vertical mode, when the tab strip is not in a <toolbar>, SVG favicons using prefers-color-scheme don't always get the correct color-scheme according to theme colors. bug1968040 Fixed in v141
Desktop Media Taskbar Appearing when playing Full Screen Videos bug1965699 Fixed in v141
Desktop UI/UX Switching search engines on a new address bar [16] [17] Use keyword shortcut (e.g. @google, @ddg) on the new address bar
Android UI/UX Firefox for Android no longer restart in private browsing mode bug1973769 This is intentional as per [18]
Android UI/UX Firefox for Android Private browsing shortcut opens a regular window in v141 bug1978764 -
Android UI/UX Bogus message: I'm a temporary text to indicate you're on the new Tab Fragment bug1976648 Will be fix in v142
Android UI/UX spacebar and backspace working abnormaly in google search bar with gboard bug1968872 -
Focus Android UI/UX The search suggestions are barely visible on dark theme bug1977340 Will be fix in v.141.0.1

Known incidents

Firefox unable to load new pages
Description: Firefox unable to load new pages
Status: Resolved
Product(s) impacted: Firefox Desktop
Associated bug: Generic - Due to 1Password extension
Resolution/workaround: 1Password v 8.11.4.27 fixes the issue for bug1980009
Dual-homed Firefox sometimes unable to load new pages
Description: Dual-homed networks cause Firefox to sometimes be unable to load network resources
Status: Resolved
Product(s) impacted: Firefox Desktop
Associated bug: https://bugzilla.mozilla.org/show_bug.cgi?id=1980425
Resolution/workaround: A fix will land in v143
Reddit blocking access to threads with error about "blocked by network security"
Description: As described
Status: Resolved
Product(s) impacted: Firefox Desktop/Android
Associated bug: [19]
Resolution/workaround: Reddit has rolled out a mitigation
Inference process uses 100% CPU
Description: The team noticed reports on multiple Reddit threads about inference process uses 100% CPU
Status: Resolved
Product(s) impacted: Firefox Release v141
Associated bug: [20]
Resolution/workaround: The inference process turned out to be related to an experiment (not the automated tab grouping) we run on select users on v141. The team decided to turn off the experiment, which solved the issue.


Post-release