Please keep supporting this add-on! Rated 5 out of 5 stars

I started using this add-on with Firefox several years ago, and it took a little getting used to at first. Now I can't live without it. I'm afraid that it may not be re-built the same or at all with the new extensions API that Firefox is migrating to over the next year. I sincerely hope this add-on does not die! I would love to see it work on the new API and be supported by other browsers such as Chrome as well. Thanks so much for the work put into this very helpful tool.

Great - some suggestions: Rated 4 out of 5 stars

It's a keeper for me. I hope some of these suggestions can make it into future versions (similar to what TabCenter has):
- thumbnail previews of tabs (until too many tabs are open)
- double clicking the empty dark grey area below the tabs opens a new blank tab
- search field at the top, for searching page titles
- ability to theme/colourise the tab colours (eg be themable by vivaldifox addon)

Awesome addon! Rated 5 out of 5 stars

It really helped me organize and manage the tabs. Too bad it doesn't come with firefox by default. Most people might not know about it.

I would strongly recommend firefox to officially add it to the product itself rather than an addon.

To Developer,

Awesome addon again!

Could you add the same functionality to bookmarks in the bookmarks bar? For example instead of having folders as organizing structures, have bookmarks as folders. On hover one can view its children and on click one can open that page. No need to have folders at all.

Must have for any firefox user Rated 5 out of 5 stars

I used to have problems with an infinity of tabs opened.
No more.

خیلی عالیه . با هاردور اکسلریشن هم کار میکنه Rated 4 out of 5 stars

compatibility hardware acceleration .
translate to Farsi . Let me know
دمت گرم

The only reason I use FireFox Rated 5 out of 5 stars

Indispensable. This addon is the only reason I still use FireFox instead of Chrome.

Very slow when there is lots of tabs Rated 2 out of 5 stars

Navigate across tabs with the well is pretty slow when there is more than 30 tabs.

Like it Rated 4 out of 5 stars

Great plugin that changes my impression about tabbar. Easy to use and configure. It can be customized to show and hide by holding ctrl key and this transparent tabbar is useful. However, I the title in the tab is hard to see as both its font and background color are black. It will be better if this can be fixed.

Best add-on ever! Rated 5 out of 5 stars

Most handful tabs implementation ever

Tree Style Tab使用時はタイトルバーを非表示にできない Rated 4 out of 5 stars

Tree Style Tabを有効にした状態では、Firefox標準のカスタマイズ機能でタイトルバーを非表示にしていても、必ず表示されてしまいます。

Asking about something. Rated 4 out of 5 stars

after the using TST, firefox's Own 'show the pages on Windows Taskbar' is not work.

Must have add on !!!!! Rated 5 out of 5 stars

A great add-on if you are working with many open windows !! Absolutely to install !!

I am so happy i have this Rated 5 out of 5 stars

love it, makes life very easy, must have for work

A Total Necessisty Rated 5 out of 5 stars

I can never go back to any browser that doesn't have this extension installed. It's absolutely the best for people who need tab management.

Perfect! Rated 5 out of 5 stars

Required for users that have many tabs open

The only working tree tab among others Rated 5 out of 5 stars

I tried all tree tab addons but only this one really works !

Can you remove title bar like other addons do ?

This user has a previous review of this add-on.

incompatibility w. Easy DragtoGo++ Rated 3 out of 5 stars

when Tree Style Tab is installed, the drag function of Easy DragtoGo++ (last version, the one compatible with FF 50+) doesn't work anymore. Please fix!

Awesome. Rated 5 out of 5 stars

Albeit requires polishing, but that's something I'd want to be able to do on my own in future, without bothering anyone.
For now I'm here to just ask a question (say, I'm retarded and don't know the first thing about coding):
I want to hold a button to show the tree tab window, but only Ctrl key is available for that.
It creates a problem in which you can't expand/collapse tress. MTH becomes pretty much
unusable as well, as the window disappears as soon as Ctrl is released.

Question is — where's the line of code responsible for "Show Tree Tab window" key designation?
I'll figure out how to compile and use it all, just need to know where to look. Although
now I'm thinking it shouldn't be difficult to find as well.

I do realize you're likely not interested in changing anything yourself, but just a few suggestions (that are probably already considered) in case you ever get back to working on it:
-Make the key responsible for showing the tree view window changeable (or I will, if I ever get to learn anything, and send it over to you);
-Another option would be to make a tick for "press to show/hide" thing, as in — for it to be able to hold the state;
-Maybe let the user hide that pesky line at the edge of the screen when it's set to "drag cursor to the edge of the screen". It irks my autismo-abysmo to fury levels that are equal to power of a thousand suns when that trickle of imperfection is there on my perfectly UI-less pages. At all times;
-An option for a separate pop-out window instead of the in-browser-only window. Like in that "Tabs Outliner" extension for Chrome. But I sort of don't want to touch anything google-related anymore. Sue me.

Yes, it is all simple, but have mercy on a lazy, deadbeat pothead. Took a month to get myself to finally throw a bunch of towels into a washing machine, for crying outloud.
This will probably take years.

Вертикальные вкладки с деревьями! Rated 5 out of 5 stars

Восхитительно! Такое возможно только в Firefox и работают они прекрасно!

This user has a previous review of this add-on.

Greatest add-on of them all! Rated 5 out of 5 stars

This extension is the main UX reason I prefer Firefox over any other browser!

This review is for a previous version of the add-on (0.18.2016090802).