Indispensable. There used to be a minor annoyance but they fixed it.

So usefull. Add this extension to other browsers (Chrome, Edge, Opera)

Nice, Thank you. I liked Tab Groups - this restores that lost functionality.

I can't send the tabs thru the Tree Style Tab on the left regardless if it's per tabs or per tree. When I select the tabs, I need to send the tabs through the tab menu at the top (ergo by right clicking the tabs at the top not the tabs on the tree style). Please fix. Despite this, it's an amazing plug-in.

very good

Standard Tree Style Tab funktioniert nicht, die anderen Funktionen jedoch schon. (FF 104.0.1)

I love Tree Style Tab! Amazing add-on! I don't get it why the other browsers don't copy this feature.

One of the greatest extensions you can have. Edge pushes vertical tab bars as a really good feature, but what really makes a vertical tab design work so well is the branches and history of tabs shown with this extension.

This is one of those things that, once you have it, you wonder how you ever lived without it.

The simple ability to use tab groups and collapse when needed is an excellent feature. A must have!

Also (responding to another review), I am using macOS Monterey (Intel processor), and I do not experience memory leak issues. FWIW.