Support/Firefox147
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Firefox 147 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 147.0 Release Notes
- ESR 115.32.0 Release Notes
- ESR 143.7.0 Release Notes
- Firefox for Enterprise 147 Release Notes
- Firefox for developers 147 Release Notes
- Firefox for Android 147.0 Release Notes
- Firefox for iOS 147.0 Release Notes
Dot releases
| Platform | Version | Release date | Notable fixes | Unresolved |
|---|---|---|---|---|
| Firefox Desktop | 147.0.1 | Jan 16, 2026 | bug2010712, bug2001887, bug2010411 | - |
| Firefox & Focus for Android | 147.0.1 | Jan 16, 2026 | bug2010712, bug2006756, bug2010411 | - |
| Firefox Desktop | 147.0.2 | Jan 27, 2026 | bug2011300, bug2010919, bug2010956, and security fixes | - |
| Firefox & Focus for Android | 147.0.2 | Jan 27, 2026 | bug2011319, bug1999448, bug2010956 and security fixes | - |
| Firefox Desktop | 147.0.3 | Feb 4, 2026 | bug2010481, bug2003810, bug2010501, and bug2012950 | bug2003045 |
| Firefox & Focus for Android | 147.0.3 | Feb 4, 2026 | bug2010365 and various stability fixes | - |
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 147
Content in this page is being updated periodically as we're rolling out the release.
Firefox Desktop content update
| Local network access restrictions | ||
|---|---|---|
| Description: | Local network access restrictions is now enabled by default for users with ETP set to Strict | |
| Content request: | https://bugzilla.mozilla.org/show_bug.cgi?id=1995870 https://bugzilla.mozilla.org/show_bug.cgi?id=2011186 | |
| KB article: | https://support.mozilla.org/kb/control-personal-device-local-network-permissions-firefox | Article update |
| Customizable Hotkeys | ||
|---|---|---|
| Description: | New article about the customizable hotkeys | |
| Content request: | https://bugzilla.mozilla.org/show_bug.cgi?id=1995889 | |
| KB article: | https://support.mozilla.org/kb/use-keyboard-shortcuts-firefox | New article |
| Adding Switzerland in the address autofill article on desktop | ||
|---|---|---|
| Description: | Address autofill launch in Switzerland | |
| Content request: | https://bugzilla.mozilla.org/show_bug.cgi?id=2011261 | |
| KB article: | https://support.mozilla.org/kb/automatically-fill-your-address-web-forms | Article update |
Firefox for Android content update
Firefox for iOS content update
Known studies/experiments
| Platform | Studies/experiments | Description | Related discussions | Forum tag |
|---|---|---|---|---|
| Firefox desktop | Address autofill launch on Switzerland | Gradual launch on desktop only | - | Autofill |
Top requests
Check out top voted requests on Mozilla Connect.
Known issues
| Platform | Issue | Known bug/Related discussions | Fix/workaround |
|---|---|---|---|
| iOS | HTTP Auth broken since Firefox 147 | [1] | Fix shipping in v147.2 |
Known incidents
| ChatGPT stopped working in Firefox 147 | |
|---|---|
| Description: | ChatGPT loading errors due to compression dictionary incompatibility |
| Status: | Resolved |
| Product(s) impacted: | Firefox Desktop |
| Associated bug: | https://bugzilla.mozilla.org/show_bug.cgi?id=2010712 |
| Resolution/workaround: | Resolved with the release of 147.0.1 |
| Firefox Address Bar Autofill Degraded | |
|---|---|
| Description: | Autofill suggests urls that aren't relevant to the user |
| Status: | Fix lands in 149 Nightly per Jan 27th |
| Product(s) impacted: | Firefox Desktop |
| Associated bug: | https://bugzilla.mozilla.org/show_bug.cgi?id=2010941 |
| Resolution/workaround: | Fixed in Nightly |
| Unexpected back navigation in Fenix 147 | |
|---|---|
| Description: | Firefox for Android frequently and randomly going back to the previous page after a new one is loaded |
| Status: | Resolved in 147.0.2 |
| Product(s) impacted: | Firefox for Android 147 |
| Associated bug: | https://bugzilla.mozilla.org/show_bug.cgi?id=2011319 |
| Resolution/workaround: | Fixed with the release of 147.0.2 |
| Back button jumps to first entry in tab's history rather than previous entry | |
|---|---|
| Description: | Users navigating back through google search results on Firefox Android 147 sometimes have incorrect history |
| Status: | Ongoing |
| Product(s) impacted: | Firefox for Android 147 |
| Associated bug: | https://bugzilla.mozilla.org/show_bug.cgi?id=1958609 |
| Resolution/workaround: | Ongoing |