Absolutely essential. The lack of anything like this on that other browser makes it impossible for me to consider switching, ever. (No, that tabs in a separate window thing is not near good enough.)

best onthe market, it make me cant migrate from ff to another browser...
edited
------------
(2) Close button on tab doesn't work with latest (3.4.1) version.

Close button on tab doesn't work with latest (3.4.1) version.

One of my favourites addon of all times. I keep a lot of tabs open for work and games (between 1000 and 2000), and this addon is a life saver. Helps a lot and let me save a lot of time in finding the tabs I need. Highly recommended.

nice addon!!!!!

This plugin does a thousand different and strange things like open special tabs to just create a fancy tree, and I just want a simple sidebar.

sempre trazendo otimas opcoes

Initial difficulties with the sidebar scrollbar resolved thanks to irvinm

https://github.com/piroor/treestyletab/issues/2489#issuecomment-590028595

хороший браузер, Рекомендую!