I love TreeTabs except for 2 things:
1) Sometimes when I click on a tab, instead of just switching to that tab, that tab and any subordinate tabs open in a completely new window. It seems to happen when I click too hard on the tab. Or maybe there's a very slight movement of the cursor when I click.
2) Then when I move the tab and subordinate tabs back to their original place, the tab order is completely reversed.
Other than those two things, TreeTabs is a wonderful extension! It makes it a lot easier to deal with the many tabs I leave open all the time.

Every time the author does something, he does it like an idiot. He adds some stupid crap. Instead of fixing the bugs he wrote about two years ago. No. The author won't fix the bugs. Let's add some stupid, idiotic crap.Why did they make this stupid pin? Now every time I move the tab to the beginning, it automatically pins itself instead of becoming the first one.How do I remove this stupid pin?

Had similar issues to another user. Upon opening new tabs from existing tabs, they always went to weird places (to the far right usually) instead of opening next to the tab I was using. This made the addon quite unusable to me...

BUT, I found this can be changed in Manage addon -> Options. At "Tabs opened from Existing Tabs", change "Last Child of the parent tab (recommended)" to "Child of the parent tab, next to the recently opened child (simulates the browser's default behavior)".

So I will continue using this for now. However, it might be a good idea to edit the default so it's more similar to the browser's default, I feel like most people can't be bothered to dive into the options/settings.

This extension is the only reason I am still using Firefox in 2025.
No other browser has automatic tab nesting.

Can this extension be used to capture information about a FF tab that somehow opens then closes within a second? If so, what settings of this extension will enable this?...I haven't been able to find the correct setting to capture this info.

This extension revolutionized my browser experience. I can work and search much, much better now.
Gonna test this with vertical tabs on the browser soon to see how it goes

Not able to group tabs by domain or regular expression.

been using this for a couple years now and it's incredibly nice to see all my (many, many) tabs organized into little branches. great to use with Auto Tab Discard