If you are using always tabs over 10, you MUST install this extension.

Works flawlessly. Essential when working with multiple tabs open tabs on projects with multiple aspects. Tree level management saves a lot of time, keeps active tabs organized, and helps avoid closing tabs still in use by accident.

Best addon i found.
For multitabs.

ótimo aproveitamento.

Great extension
Help me in tracking my mess while surfing around.

Just to make it clear, this plugin is the reason I came back to firefox ! THANK YOU for creating & updating it .

Wow, this should become a default for FF browser, I could never ever work without it. Helps my productivity and reading/working style a lot. I can only recommend it.

Amazing features, but glitchy. Especially when I have two windows open using it. Tabs get sorted weird, especially on restarts, sometimes phantom tabs (that aren't selectable but show up in the menu) linger, tab order gets screwed up, etc.

I find this a much better interface than the tab bar. It's not quite as nice as the old version of the addon but I think this is about as good as can be done with the new WebExtension model.

Love this app and have one feature request.

I normally use the default tabs at the top of the window, and open Tree Style Tab when I have too many tabs open. It would be cool if there were an option to automatically open the Tree Style Tab sidebar when a specified number of tabs were open.

So an option like:

Automatically open sidebar when n tabs are opened.