Support/Firefox142
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Firefox 142 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:
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
- Desktop 142.0 Release Notes
- ESR 115.27.0 Release Notes
- ESR 128.14.0 Release Notes
- ESR 142.2.0 Release Notes
- Firefox for Enterprise 142 Release Notes
- Firefox for developers 142 Release Notes
- Firefox for Android 142.0 Release Notes
- Firefox for iOS 142.0 Release Notes
Dot releases
| Platform | Version | Release date | Notable fixes | Unresolved |
|---|---|---|---|---|
| Firefox Desktop | 142.0.1 | Aug 27, 2025 | Multiple bug fixes | - |
| Firefox & Focus for Android | 142.0.1 | Aug 27, 2025 | Various stability fixes | - |
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 140
Content in this page is being updated periodically as we're rolling out the release.
Firefox Desktop content update
| Update of the pop-up blocker article | ||
|---|---|---|
| Description: | Update pop-up blocker article to include changes from frame busting feature | |
| Content request: | [1] | |
| KB article: | https://support.mozilla.org/kb/pop-blocker-settings-exceptions-troubleshooting | Article update |
| ETP Web compatibility exceptions | ||
|---|---|---|
| Description: | We are introducing the ETP web compatibility exceptions to improve the browsing experience for ETP strict and PBM users | |
| Content request: | [2] | |
| KB articles: | https://support.mozilla.org/kb/manage-enhanced-tracking-protection-exceptions | New article |
| https://support.mozilla.org/kb/enhanced-tracking-protection-firefox-desktop | Article update | |
| Update AI Chatbot article | ||
|---|---|---|
| Description: | We are introducing a new feature that allows users to summarize an entire page without selecting text. | |
| Content request: | [3] | |
| KB article: | https://support.mozilla.org/kb/ai-chatbot | Article update |
Firefox for Android content update
Firefox for iOS content update
| iOS Menu Redesign | ||
|---|---|---|
| Description: | We are redesigning the iOS Menu | |
| Content request: | [4] | |
| KB article: | https://support.mozilla.org/kb/menu-firefox-ios | New article |
| Shake to Summarize | ||
|---|---|---|
| Description: | Use Firefox for iOS to summarize webpages by shaking the device | |
| Content request: | [5] | |
| KB article: | https://support.mozilla.org/kb/summarize-pages-ios | New article |
Known studies/experiments
Trending requests
| Platform | Request | Related discussions | Status |
|---|---|---|---|
| Desktop | Split-screen/Tab-in-Tab feature | [6] | In development |
| Desktop | Synced tab groups | [7] | Tracking |
| Desktop | Customizable bookmark toolbar font | [8] | Tracking |
| Desktop | Customizable hotkeys | [9] | Tracking |
| Desktop | Differentiate "Site you save" and "Sites you visit" in new tab | [10] [11] | Tracking |
| Android | Android address bar is too cluttered | [12] [13] [14] [15] [16] | Tracking |
| Android | Add a setting to enable tab strip | ConnectBugzilla | Tracking |
| iOS | Default page zoom setting | [17] | In progress |
| iOS | Translate feature in Firefox for iOS | [18] | 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 | Crashes | Startup crashes caused by MS's Family Safety feature | [19] | 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 | - |
| Android | UI/UX | Firefox for Android no longer restart in private browsing mode | bug1973769 | This is intentional as per [20] |
| 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 fixed in v142 |
| Android | UI/UX | spacebar and backspace working abnormally in google search bar with gboard | bug1968872 | - |
| Nightly 144 | UI/UX | Drag tab to pin functionality is too sensitive | Reddit thread, Discourse post | - |
Known incidents
| Firefox Toolbar/UI unresponsive | |
|---|---|
| Description: | Firefox Toolbar/UI unresponsive on Desktop |
| Status: | A fix is coming with 142.0.1 |
| Product(s) impacted: | Firefox Desktop |
| Associated bug: | [https://bugzilla.mozilla.org/show_bug.cgi?id=1980392, [21] Reddit thread |
| Resolution/workaround: | See [22] |