Compare software

Tree Style Tab vs Tab Manager Plus: catalog facts
Tree Style Tab	Tab Manager Plus
Best for: Shows Firefox tabs as a vertical tree with parent and child relationships	Best for: People who keep dozens of tabs open across several windows
Free Free and open source under the MPL.	Free Free, with source code published on GitHub.
Browser extension	Browser extension
Branches can be collapsed or closed as a unit, which tames deep research sessions Very configurable appearance and behaviour	Overview of all tabs across windows Search to find a tab quickly All 3 strengths for Tab Manager Plus Overview of all tabs across windows Search to find a tab quickly Available for both Chrome and Firefox
Firefox only Hiding the native tab strip requires editing userChrome.css	Small project maintained mainly by one developer
Browser extension	Browser extension
Open source	Not open source
License: MPL-2.0	License not stated
Not stated if an account is needed	No account needed
Not stated if it works offline	Offline features available
Official website Full listing and sources Sources for Tree Style Tab addons.mozilla.org/firefox/addon/tree-style-tab github.com/piroor/treestyletab Catalog checked September 22, 2026	Official website Full listing and sources Sources for Tab Manager Plus github.com/stefanXO/Tab-Manager-Plus Catalog checked October 1, 2026

“Not stated” means we have not confirmed it. Features can vary by device and plan.