Development Build
This release includes an XPI file that is automatically generated after each push to the main branch.
It compatible with all supported versions of Firefox. (see Browser Compatibility)
Supported Firefox versions: 128 ESR - 156.0a1 Nightly
dev-build - 2026-08-23
Section titled “dev-build - 2026-08-23”🐛 Bug Fixes
Section titled “🐛 Bug Fixes”- 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) - Blocking another extension temporary window from auto closing (closes #566) (
e45d5c8) - Issue with Tab Mix Plus and masterPasswordPlus (closes #569) (
d810118)
🎨 Code Style Changes
Section titled “🎨 Code Style Changes”- Improve compatibility with Firefox Nova (
baf64e5)
🔧 Maintenance
Section titled “🔧 Maintenance”- Revert “replace date-based scripts update with hash verification and auto-install” (
fe49f70) - Update dependencies (
543c868,57e95ae,d1be0c4) - Update mozilla types (
167bad6) - Cleanup eslint config (
5b610ff) - Follow up bug 2056527 - Switch syncedtabs to use moz-src (
d907ece) - Follow up bug 1961577 - Keep tabs in place when collapsing a dragged tab group (
c479284) - Follow up bug 2061864 - Recover from tab drag sessions that the platform never ends, which leave the toolbar unresponsive (
2df6a96) - Follow up bug 2049770 - Move the Tabbrowser class to a shared module (
3745c76) - 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) - Bug 1837253 - Introduce read-only index property as a replacement for pseudo-private _tPos (
6ced748)