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 0.4.9
Released 2 Jul 2025 - 74.24 kBWorks with firefox 67.0 and later- Fixed active tab not being set correctly after restoring tabs
Source code released under MIT Licence
Download Firefox and get the extensionYou'll need Firefox to use this extensionOlder versions
Version 0.4.8
Released 23 Jun 2025 - 74.22 kBWorks with firefox 67.0 and later- Fixed the sidebar sometimes appearing blank on first open
- Reduced occurrence of restored tabs appearing in incorrect order
- Ensure descendant appears after parent when opening a new tab
Source code released under MIT Licence
Version 0.4.7
Released 6 May 2024 - 73.7 kBWorks with firefox 67.0 and later- Fixed issue preventing a blank tab to be reopened in a new containerSource code released under MIT Licence
Version 0.4.6
Released 19 Aug 2023 - 73.65 kBWorks with firefox 67.0 and later- Improved tab restore performance
- Improved sidebar initialization performanceSource code released under MIT Licence
Version 0.4.5
Released 9 Apr 2023 - 73.68 kBWorks with firefox 67.0 and later- Improved performance in private windows
- Fixed an issue with the sidebar being blank at startup in private windows
- Fixed an issue with parentage not updating correctly in private windows when restoring a tabSource code released under MIT Licence
Version 0.4.4
Released 7 Apr 2023 - 73.55 kBWorks with firefox 67.0 and later- Fixed an issue with a restored tab's children not being restored
- Improved performance when many tabs are updated concurrentlySource code released under MIT Licence
Version 0.4.3
Released 23 Dec 2021 - 73.55 kBWorks with firefox 67.0 and later- Fixed horizontal overflow in sidebarSource code released under MIT Licence
Version 0.4.2
Released 21 Dec 2021 - 73.54 kBWorks with firefox 67.0 and later- Fixed drop indicator when dropping on empty space displaying incorrectly
- Fixed right clicking on empty spaceSource code released under MIT Licence
Version 0.4.1
Released 3 Dec 2021 - 73.53 kBWorks with firefox 67.0 and later- Fixed mute indicator not responding to clicks
- Added optional button to close tabsSource code released under MIT Licence
Version 0.4.0
Released 3 Dec 2021 - 72.63 kBWorks with firefox 67.0 and later- Sidebar now works again in private windows
- Updates are batched when a large number of events occurs in a short period of timeSource code released under MIT Licence
Version 0.3.5
Released 15 Jun 2021 - 73.11 kBWorks with firefox 67.0 and later- Fixed an issue with assigning parent to the last tabSource code released under MIT Licence
Version 0.3.4
Released 14 Jun 2021 - 73.11 kBWorks with firefox 67.0 and later- Fixed an issue with restoring tabs sometimes breaking the tree structureSource code released under MIT Licence
Version 0.3.3
Released 12 Jun 2021 - 73.15 kBWorks with firefox 67.0 and later- Tabs now have an audio playing indicator which can be clicked to mute/unmute the tab
- Updated faviconsSource code released under MIT Licence
Version 0.3.2
Released 5 Jun 2021 - 72.16 kBWorks with firefox 67.0 and later- Dutch translation by Vistaus
- Fix display issue when moving a folded tab with children
- Performance improvementsSource code released under MIT Licence
Version 0.3.1
Released 9 Dec 2020 - 70.72 kBWorks with firefox 67.0 and later- Changed loading indicator to hourglass
- Added missing favicon for about:addons page
- Performance improvementsSource code released under MIT Licence
Version 0.3.0
Released 14 Jun 2020 - 67.7 kBWorks with firefox 67.0 and later- Improved performance
- Added a button to clear tree dataSource code released under MIT Licence
Version 0.2.23
Released 2 Jun 2020 - 67.2 kBWorks with firefox 67.0 and later- Improved performance of folding large treesSource code released under MIT Licence
Version 0.2.22
Released 1 Jan 2020 - 67.19 kBWorks with firefox 67.0 and later- Improved tree structure retention in response to external addons moving tabsSource code released under MIT Licence
Version 0.2.21
Released 9 Nov 2019 - 67.04 kBWorks with firefox 67.0 and later- Fix: fold indicator was erroneously displayed on parents unfolded as a result of descendant changesSource code released under MIT Licence
Version 0.2.20
Released 7 Nov 2019 - 67.02 kBWorks with firefox 67.0 and later- Drop indicator is now displayed correctly for pinned tabs
- Improved performance when many tabs are hidden/displayed simultaneouslySource code released under MIT Licence
Version 0.2.18
Released 26 Oct 2019 - 66.89 kBWorks with firefox 67.0 and later- Added reopen in container tab context menu
- Added tab attention indicator
- Added additional optionsSource code released under MIT Licence
Version 0.2.17
Released 22 Oct 2019 - 62.44 kBWorks with firefox 67.0 and later- Fix: tabs could be dragged with control held down (ff 71+)Source code released under MIT Licence
Version 0.2.16
Released 9 Oct 2019 - 62.18 kBWorks with firefox 67.0 and later- Added a favicon for "Firefox Home" pageSource code released under MIT Licence
Version 0.2.15
Released 8 Oct 2019 - 59.43 kBWorks with firefox 67.0 and later- Fixed an issue with the addon erroneously changing the active tab following the user closing the active tabSource code released under MIT Licence
Version 0.2.14
Released 29 Aug 2019 - 59.96 kBWorks with firefox 67.0 and later- Added localization supportSource code released under MIT Licence