Great to have my bookmarks down side of screen. I had just about given up on the new firefox version, this was what I needed.

So I used to think TST was great, but this... this takes it to another level. The out-of-the-box experience is great. There's a lot of features, the UI is coherent in it's design, which is pretty damn neat, and to top it all off it kept my hierarchy from TST. I couldn't have asked for more.

P.S.
To have the colors of the browser match colors of the sidebar I got the "Dark Theme for Firefox by Stefan vd" theme. I could have done it the other way around but I like the warm gray better than the proton gray honestly. And it matches the userCSS I use for making all the "about:" pages dark :)

A superb add-on! I was using another Tree Tab add-on previously and came across this one - and it has just plenty of settings and possibilities to organize your work and your tabs. Now I'm able to easily group tabs to separate panels (Home/Work/Spouse) each having an isolated storage (container), which allows to be simultaneiously logged in to Google services with different accounts. There are plenty of customization settings, starting from custom icons and to fully customized behavior. I spent some time first to understand how to use all these, and still haven't explored all the possibilities, but I keep discovering still more and more convenient features (like reloading tab using long left click, or grouping tabs to a special Group tab, which shows an overview of all the contained tabs, or unloading a bunch of tabs to reduce memory usage). So couldn't help writing a review - and definitely recommend it!

This is my favorite addon and new redesign is amazing

This is the greatest extension ever made. Look around in the settings and you will find more and more reasons to love it.

The best "tree tab" extension. It runs smoothly and has a lot of customization settings.

相当优秀，找了很多， 就你合适我，哈哈

Probably the definitive tree tabs addon. Very customizable.