Supported Firefox versions: 128 ESR - 155
1.46.0 (2026-08-27)
🐛 Bug Fixes
- Blocking another extension temporary window from auto closing (closes #566) (
e45d5c8) - Custom shortcuts stopped working in Firefox 153 (
f322e93) - Issue with Tab Mix Plus and masterPasswordPlus (closes #569) (
d810118) - Make sure the child list has been fully initialized (
ade605d,df2680c) - Multi-row tabs bar creates unwanted white space at the top (closes #563) (
7ea07b4) - Tab Mix Plus blocks Firefox native password saving/updating prompt (closes #565) (
729df00)
🎨 Code Style Changes
- Improve compatibility with Firefox Nova (
baf64e5)
🔧 Maintenance
- Bug 1837253 - Introduce read-only index property as a replacement for pseudo-private _tPos (
6ced748) - Cleanup eslint config (
5b610ff) - Follow up bug 1961577 - Keep tabs in place when collapsing a dragged tab group (
c479284) - Follow up bug 1979688 - Use # private fields for tabbrowser's internal state instead of underscore prefixes (
3d2ea87,1b452d0,2052a8c) - Follow up bug 1995734 - Dragging a link from one view to another will open it in the original view (
10d5dc9) - Follow up bug 2031718 - Implement menu section and item ordering layer (
b6903b5) - Follow up bug 2039847: Normalize the metricsContext parameter (
b3fb03f) - Follow up bug 2041280 - Introduce a UrlbarShared module that can be imported into system and content globals (
9cd6933) - Follow up bug 2046942 - Make sure urlbar and tab Nova files are syncing with Figma (
d7788d0) - Follow up bug 2049770 - Move the Tabbrowser class to a shared module (
3745c76) - Follow up bug 2052740 - Migrate various modules to moz-src Part 2 (
250c5ab) - Follow up bug 2056527 - Switch syncedtabs to use moz-src (
d907ece) - Follow up bug 2061864 - Recover from tab drag sessions that the platform never ends, which leave the toolbar unresponsive (
2df6a96) - Follow up bug 2062783 - Use moz-src for sessionstore (
f322f3e) - Follow up bug 2064194 - Triage the tabbrowser's underscore-prefixed members into private or public (
103ed8e) - Replace date-based scripts update with hash verification and auto-install (
7534bb2) - Replace Preferences.sys.mjs usage with Services.prefs (
1057e29) - Revert "replace date-based scripts update with hash verification and auto-install" (
fe49f70) - Stop showing "Update Your Firefox Scripts" if new updater exist (
f6eabb1) - Typo (
e59277e) - Update compatibility with Waterfox 6.7.0-beta.1 (
a114de7) - Update dependencies (
d1be0c4,57e95ae,543c868,baf1844) - Update mozilla types (
167bad6,81b7ff2)