Supported Firefox versions: 128 ESR - 147
1.39.0 (2026-01-11)
🐛 Bug Fixes
- Active tab becomes stretched when collapsing group (closes #507) (
165b250) - Ensure split-view max-width accounts for tabs icons (closes #513) (
e5f2057) - Gap between pinned and normal tabs when using multi-row (closes #511) (
5a03539) - Group line of split view disappeared when dragging (closes #514) (
f1bccbc,849342f,67199a0) - Handle dropping tabs into collapsed tab groups (
228accf) - Layout issue when moving tabs to a collapsed group (closes #509) (
4c4d123) - Layout issue when the first non-pinned element is a split view and there are some pinned tabs (closes #504) (
80b5213) - Missing option for open links from other apps (closes #501) (
e8fc2ad) - Missing window control buttons when tabs at bottom (closes #518) (
c784f2b) - Moving collapsed group with active tab (closes [#516] (
2dd5f06) - Moving collapsed group with active tab (closes #516) (
d4c87de) - New Tab button appears at the start of Nav Bar (closes #512) (
a08f734) - Preferences window Menu is missing
Add Tab to Group(f21a6fe,4e71401) - Tab minimum width seeming not working below a certain window-width (closes #498) (
3767e7b) - Tab size issue after underflowing on multi-rows (closes #515) (
e83e8bf) - The overflowContainer of a group is not hidden during dragging (closes #508) (
7bffd29) - Unable to reorder or drag tabs into groups that are not in the top row (
9dc613b) - Wrong position of tab note icon (closes #505) (
ddd906e)
♻️ Refactor
- Update drag and drop to handle new split-view (
a070411,5557019) - Update typescript files to support future typescript 7 (
74e5cc4,77494e1)
🎨 Code Style Changes
- Improve group line position for multi-row mode (
cc5b52d) - Replace all deprecated color variables with the new one (
09dbf6f)
🔧 Maintenance
- Adjust split-view tab height to match other tabs in multi-row layout (
40b5e20) - Confirm before restore defaults (close #517) (
7ffd593) - Do not open bookmarks into existing split view tabs (
bdddfe7) - Dont use tab.splitview in dragstart before Firefox 148 (
1bb1af8) - Follow up bug 1981197 - Tab group hover preview should have the correct positioning and hover state in vertical tab mode (
b5e6870) - Follow up bug 2008041 - Make XUL disabled / checked attributes html-style boolean attributes (
8f361a7), closes [#519](#519,2511561) - Handle dragging tab out of group (
7118600) - Handle some drag and drop edge cases (
8951a25) - Show version update page in dialog window (
5f5d8f2,4f1956c) - Show version update page in tab (
3d3c3ea,31c2b4a) - Update dependencies (
5f582b1) - Update eslint configuration (
3060772,9e80301)