Support/Firefox152
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Firefox 152 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 152.0 Release Notes
- ESR 140.12.0 Release Notes
- ESR 115.37.0 Release Notes
- Firefox for Enterprise 152 Release Notes
- Firefox for developers 152 Release Notes
- Firefox for Android 152.0 Release Notes
- Firefox for iOS 152.0 Release Notes
Dot releases
| Platform | Version | Release date | Notable fixes | Unresolved |
|---|---|---|---|---|
| Firefox Desktop | 152.0.1 | June 18, 2026 | Bug 2039575, Bug 2047850 | - |
| Firefox & Focus for Android | 152.0.1 | June 18, 2026 | Bug 2047473 | - |
| Firefox & Focus for iOS | 152.1 | June 22, 2026 | Various fixes | - |
| Firefox Desktop | 152.0.2 | June 23, 2026 | Various bug fixes | - |
| Firefox & Focus for Android | 152.0.2 | June 23, 2026 | Various bug fixes | - |
| Firefox Desktop | 152.0.3 | June 25, 2026 | Bug 2049845 | - |
| Firefox for iOS | 152.1.1 | June 26, 2026 | Various bug fixes | - |
| Firefox Desktop | 152.0.4 | June 30, 2026 | Various bug fixes | - |
| Firefox & Focus for Android | 152.0.4 | June 30, 2026 | Various bug fixes | - |
| Firefox for iOS | 152.1.2 | June 30, 2026 | issue #34313 | - |
| Firefox for iOS | 152.3 | July 6, 2026 | CVE-2026-13356 | - |
| Firefox Desktop | 152.0.5 | July 7, 2026 | Bug 2048383 | - |
| Firefox & Focus for Android | 152.0.5 | July 7, 2026 | Bug 2051041 and Bug 2049750 | - |
| Firefox for iOS | 152.4 | July 13, 2026 | CVE-2026-14906 | - |
| Firefox Desktop | 152.0.6 | July 14, 2026 | Smart Window enhancements & various 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 152
Content in this page is being updated periodically as we're rolling out the release.
Firefox Desktop content update
| Sumo KB articles for Settings Redesign | ||
|---|---|---|
| Description: | Update SUMO articles to align with the new Settings Redesign | |
| Content request: | bug 2020097 | |
| KB articles: | List of articles (tracking doc) | Article updates |
| Monitor integration | ||
|---|---|---|
| Description: | Learn more link slug for certificates section of preferences redesign | |
| Content request: | bug 2031775 | |
| KB article: | breach-alerts-privacy-panel | New article |
| Smart Window User Feedback | ||
|---|---|---|
| Description: | - | |
| Content request: | bug 2037463 | |
| KB article: | smart-window-user-feedback | New article |
| Update Smart Window model choice article | ||
|---|---|---|
| Description: | - | |
| Content request: | bug 2044116 | |
| KB article: | smart-window-models | Article update |
Firefox for Android content update
| Tab groups for Android | ||
|---|---|---|
| Description: | New SUMO article about Tab Groups feature on Android | |
| Content request: | bug 2041102 | |
| KB article: | tab-groups-firefox-android | New article |
| Swipe up/Swipe down to bring up tab tray | ||
|---|---|---|
| Description: | - | |
| Content request: | bug 2041760 | |
| KB article: | use-gestures-in-firefox-android | Article update |
Firefox for iOS content update
| New SUMO Article for Link Collections | ||
|---|---|---|
| Description: | Experimental rollout in the US | |
| Content request: | bug 2047672 | |
| KB article: | link-collections | New article |
Known studies/experiments
Product discussions on Mozilla Connect
Check out top voted requests on Mozilla Connect.
Known issues
Known incidents
| Extreme memory usage and complete freeze on startup (regression from 152.0.1) | |
|---|---|
| Description: | Startup hangs and extreme memory usage under specific l10n setup |
| Status: | Fixed in release of 152.0.3 |
| Product(s) impacted: | Firefox Desktop (mostly Linux packages affected) |
| Associated bug: | Bug 2049845 |
| Resolution/workaround: | Fixed in 152.0.3 |
| Homepage Freeze | |
|---|---|
| Description: | The Homepage is empty except for the Firefox logo |
| Status: | Resolved |
| Product(s) impacted: | Firefox for iOS 151.3 |
| Associated bug: | #34313 |
| Resolution/workaround: | Fixed in v152.1.2 |