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Firefox 157 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:
Release notes
- Desktop 157.0 Release Notes
- ESR 153.4.0 Release Notes
- ESR 140.17.0 Release Notes
- ESR 115.42.0 Release Notes
- Firefox for Enterprise 157 Release Notes
- Firefox for developers 157 Release Notes
- Firefox for Android 157.0 Release Notes
- Firefox for iOS 157.0 Release Notes
Dot releases
| Platform | Version | Release date | Notable fixes | Unresolved |
|---|---|---|---|---|
| Firefox Desktop | 15.0.1 | Oct 6, 2026 | Various fixes and security fix | - |
| Firefox & Focus for Android | 157.0.1 | Oct 6, 2026 | Various fixes and security fix | - |
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 157
Firefox Desktop content update
| Article about Tasks in Smart Window | ||
|---|---|---|
| Description: | New support page for Tasks in Smart Window | |
| Content request: | Bug 2067317 | |
| KB article: | [1] | New article |
| Nova-related updates | ||
|---|---|---|
| Description: | Updates to KB Articles for Nova Fx157 | |
| Content request: | Bug 2048963 | |
| KB article: | See this spreadsheet | Article updates |
Firefox for Android content update
| VPN for Android expansion | ||
|---|---|---|
| Description: |
Update list of available countries where Android VPN is available and capture the location selection feature | |
| Content request: | Bug 2074564 | |
| KB article: | [2] | Article update |
Firefox for iOS content update
No article updates for Firefox for iOS 157
Known studies/experiments
Product discussions on Mozilla Connect
Check out top voted requests on Mozilla Connect.
| Platform | Discussion theme | Discussion link |
|---|---|---|
| Desktop | Nova updates | [3] |
Known issues
| Platform | Issue | Known bug/Related discussions | Fix/workaround |
|---|---|---|---|
| Desktop | User unhappy with the gradient or the default Nova themes | - | Encourage them to coose a theme they like from [4] |
| Desktop | Amazon is no longer included as a built-in search engine. It can still be added as a custom search engine. | 157 Release notes | Add a custom search engine by following this article |
| Desktop | VPN login loops issue | bug 2063725 | - |
| Desktop | Dropdown panel selection in new sidebar: cannot navigate away from bookmarks tab (and AI chatbot tab) | bug 2076296 | The team is working on a fix. In the meantime, here are some workarounds:
|
Known incidents
| macOS Firefox 157 downloads failing with “ask where to save…” | |
|---|---|
| Description: | Downloads fail with "ask where to save files before downloading" without Downloads permission |
| Status: | Resolved |
| Product(s) impacted: | Firefox Desktop (mac only) |
| Associated bug: | Bug 2077390 |
| Resolution/workaround: | Fix shipped with the release of 157.0.1 |