TabBrain version history - 2 versions
Be careful with old versions! These versions are displayed for testing and reference purposes.You should always use the latest version of an add-on.
Latest version
Version 0.4.0
Released Mar 25, 2026 - 39.63 KBWorks with firefox 140.0 and later, android 142.0 and laterNew: Sidebar panel — use TabBrain alongside vertical tabs (View > Sidebar > TabBrain)
New: Pin/unpin toggle — pinned keeps sidebar open, unpinned auto-closes on tab switch
New: Responsive layout — sidebar adapts to any width
The toolbar popup still works as before — use whichever fits your workflow.Source code released under MIT License
Older versions
Version 0.3.0
Released Mar 19, 2026 - 36.65 KBWorks with firefox 140.0 and later, android 142.0 and laterSource code released under MIT License