The previous version of the side tabs could be narrowed or widened at my discretion. This new version does not allow that. The previous version removed the tab bar above the address bar, thus freeing up vertical display space. This newer version does not do that. Why the regression of capabilities? I have removed the addon until such time as an updated and more capable one is provided.

It updated on it's own and I DO NOT LIKE the new version. Why the hell would I still want the top taps if I have side tabs. As far as I can tellthere's no way to fix this, which pretty much renders is useless to me.

IM going crazy over it.

I thought just once in my life and upgrade or update would be better than the old and not screw it up.

In previous versions of Tree Style Tab , unopened tabs would show up in red. In all his wisdom the developer has decided to discontinue that extremely useful feature, which helps when you have dozens of tabs open. Why be a developer if you are just going to make your product worse?

Absolutely hideous since Firefox 57.0 launched.
It's probably something rather fundamental that has changed in Firefox that means I'm not stuck with the default tab style AS WELL as the tree style tab.

I think Piro has either reached obsolescence or lost sight of the original idea.
I wanted less screen wastage, now I've got a button, and the tree tabs have a header, *and* I've got the tabs at the top.

If I can't get rid of the regular tab style, I will just have to get used to it.

Real shame - I've been using Tree Style tabs for years, and you've been perfect - but now it's much too ugly to use.

I'm sorry. :(

Firefoxが57になりこのアドオンが最新版に更新された結果、ブックマークサイドバーにタブツリーが統合されてしまい、大変不便になりました。自分の使い方として左サイドバーにブックマークを表示し、右側にツリー型タブというスタイルでしたので、現状の仕様に困っています。もし、作者様にもどうにもならない仕様の更新でしたら申し訳ありません。

I installed it because I read it could place my Tabs back to the Bottom, but it can't .
Don't know if it has any other useful features ( seems to be too Complex for a "Normal" User )

I'd like to try this, but can't... attempting install tells me that my FF 57 is really 48, and refuses. This is on 64-bit Debian, in case that matters.

What's with the permissions requirement?

После внезапного краха всё дерево было утрачено. Теперь нужно создавать с нуля. С Tab Groups такого никогда небыло.

Cannot remove tab bar on top anymore.

Requires access to ALL data from websites, read and modify bookmarks, and use notifications... I cannot remotely see why those permissions could be possibly needed...

Not working in firefox android version 57 (2017.11.15)

Updated Review: The recent update a day ago resulted in the add-in being unable to load. Agreed, I have a lot of tabs open (approaching 90), but I have plenty of memory and that's why I use this Add-in.
In fact, its why I use FireFox.

Reinstalled v 3.9.22
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Been using this for 10 years. My 5 * review from 7 years ago is below.

Please continue supporting this for FF57. It shows up in my FF56 still as being a legacy extension. Like lot of others, it's the reason I use FF. I like being able to drag a group off-pane and creating a new FF window with these tabs present.

My main suggestion for improvement though would be for the new Tabs to appear at the bottom of the list, not as children of a current tab. Swap the current Cntl Click function to creating tabs as child tabs.

It would also be nice if the currently active Tab changed colour to something bright and in yer face. I'm often on screens and lose track of which tab it is from when I wish to close the screen.

Closing some tabs causes others to be closed as well, most likely only tabs on right side of the closed one.