Supported Firefox versions: 128 ESR - 158
1.48.0 (2026-09-30)
🐛 Bug Fixes
- Handle replacing saved preference file in file picker (
9dccc50) - Reopen all closed tabs in Firefox 156+ (OpenInTabsUtils moved to moz-src) (
6ad5bcf) - Restore original preference behavior for opening tabs next to current tab (closes #590) (
89ff83f) - Stop materializing lazy tabs in the remaining browser sweeps (closes #587) (
3075610) - Use per-window sandbox for gBrowser methods to fix frozen titles (closes #589) (
dd04d61)
🎨 Code Style Changes
- Improve compatibility with Firefox Nova (
f1cbe71)
🔧 Maintenance
- Fix typo in KeyConfig.init() reading this.keys (Commit 55ff29b) (
40686a4) - Follow up bug 2052772 - Port module initialization in _schedulePerWindowIdleTasks to use category-manager invocation (
da4de72) - Follow up bug 2074288 - Use moz-src for browser/components/taskbartabs (
b2328de) - Follow up bug 2075123 - Require an options object in SessionStore's getClosedTabCount (
c8f5aad) - Follow up bug 2075448 - Make Tabbrowser's per-tab progress listener maps static (
7908f27) - Remove leftover log (
0a5b312) - Remove unnecessary replacement of private methods in Firefox 156+ (
a03304e) - Update dependencies (
974f829,69de5f9,d798155) - Update firefox-script installation and configuration file links in documentation (
e09307f) - Update mozilla types (
2d70608)