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Release Notes tell you what’s new in Firefox. As always, we welcome your feedback. You can also file a bug in Bugzilla or see the system requirements of this release.

146.0.1 Firefox Release

December 18, 2025

Version 146.0.1, first offered to Release channel users on December 18, 2025

Fixed

  • Improved overall stability by fixing crashes related to browsing, graphics, and accessibility features. (Bugs 2001160, 1998185, 1998188)

  • Fixed an issue where fingerprinting protection caused incorrect font rendering on popular websites. (Bug 2000429)

  • Fixed crashes related to media playback and GMP process shutdown. (Bug 2002697)

  • Fixed an issue where desktop profile shortcuts were being unintentionally removed when changing copied profile settings. (Bug 1998209)

  • Improved sidebar text contrast when using vertical tabs with certain themes. (Bug 2006091)

  • When restoring from a backup, the restore success message will appear over the new tab page instead of one of the tabs restored from a backup, to avoid cases where the restored tab canceled the restore success message. (Bug 2003307)

  • Various security fixes.

Unresolved

  • On Windows, clicking tabs may not work at the very top of the screen when Firefox is maximized on a second monitor. We’re working to fix this in a future release. (Fixed in 147.0)

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