This is beyond useful, especially with the userchrome.css rules that people tend to recommend at the same time as it. This changes the whole tab-management game, why isn't this built in to everything by now?

A great idea, but ... Almost every time I go to Firefox, I find that the extension works extremely unstable, and the tabs change their place. I have already been tortured to clean up every time. Optimizing tree recovery using the cache only helps in 10% of cases. It remains to look for a new extension

So useful. Thanks

This is the main reason I use Firefox. I won't consider any other browser because of TST. No other browser has anything this fabulous. I started using the basics of TST as soon as I installed it. Over time, I began customizing it by adding more and more of its functions and making it even better.

Best add-on I had EVER for Firefox. Stable, dependable, well-featured, well-documented. Not to mention it solves a problem (moving to 16:9 screens from 4:3) which browsers should have solved in the last 15 years, but ALL of them FAILED.

非常好用方便

This add-on does not work. I get a top tab, but can't view the tabs within the tree.

This might be a really weird comment, but I really wonder why there is no copy of this extension on Chrome?