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Mozilla Firefox 153.0.4

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153.0.3โ†’153.0.4Bug fix
๐Ÿ“… August 11, 2026๐Ÿ—‚ Browsers๐Ÿ“ฆ Mozilla Firefox โ†—๐Ÿ“œ Full changelog โ†—
โœฆ Editor's summary

Firefox 153.0.4 is a maintenance update for the Firefox 153 release branch. Mozilla has not published a separate security advisory for version 153.0.4, indicating that this update is focused on product fixes and stability rather than newly disclosed security vulnerabilities. The security fixes for the Firefox 153 branch were delivered with the original Firefox 153 release.

What's new

Mozilla Firefox 153.0.4 is a maintenance update for the Firefox 153 release branch, focusing on bug fixes and browser reliability.

What's new
  • Includes maintenance fixes for issues identified after the Firefox 153 release.
  • Provides additional browser stability and reliability improvements.
  • Includes general quality improvements for the Firefox 153 release branch.
Recommendation

Users and organizations running Firefox 153 should update to version 153.0.4 to receive the latest maintenance fixes and reliability improvements.

More from Mozilla Firefox
Mozilla Firefox 153.0.3Bug fixPerformanceAug 4, 2026
Mozilla Firefox 153.0.1Bug fixJul 28, 2026
Mozilla Firefox 153.0SecurityFeatureBug fixPerformanceJul 21, 2026
Mozilla Firefox 152.0.6SecurityBug fixJul 15, 2026
Mozilla Firefox 152.0.5Bug fixJul 7, 2026
Latest in Browsers
Microsoft Edge: Microsoft Edge 151.0.4129.72SecurityBug fixAug 13, 2026
Google Chrome: Google Chrome 151.0.7922.138SecurityBug fixAug 12, 2026
Google Chrome: Google Chrome 152.0.7977.42SecurityFeatureBug fixPerformanceAug 11, 2026
Google Chrome: Google Chrome 151.0.7922.109SecurityBug fixAug 7, 2026
Google Chrome: Google Chrome 151.0.7922.76SecurityBug fixAug 4, 2026

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