VERY Useful! I just wish we could change the look and feel of the sidebar, have thumbnails, and have it Support (as in group them accordingly to...) Mozilla's Multi-Account-Containers. (See https://github.com/mozilla/multi-account-containers/#readme )

Suggest: if it's not possible to auto-hide the TreeStyleTab-Sidebar, would be great showing the tree in a new window, like the Bookmarks Manager window.

Hey!
Can you implement API that allow other extension to integrate into TST? Details https://addons.mozilla.org/ru/firefox/addon/reloadmatic/reviews/996192/

I like it a lot, but I'd like to be able to change the background and text colors and weights of the tabs themselves in Firefox 57/linux. Some of the .css tweaks work, some work in strange ways, and some don't work at all. It was way better before FF57.

Thanks for this add on, it's realy helpfully for user who use a lot of tabs in a session.

I really miss 2 things that wass very usefull, the auto hide, and the transparency without rezize the webpage area.

I don't know if it's posible cus the api limits.

Tree-style tabs are more compact and orderly than organizing tabs through the normal tabs bar. This extension has a few bugs in it, but it's still indispensable to saving time on the internet! Thank you, Piro. :)

Pretty good, only issue is when used with Sync Tab Groups it does not restore the tree structure (the whole view is flattened). That's probably something that Sync Tab Groups has to support, though.

Ever since 57 this looks disgusting. Still the best addon out there though.

This combined with scrollbar anywhere made firefox the single best browser. Both dont work right anymore. RIP Firefox.

It's a great idea and a perfectly well made extension but it's usefulness is limited by the release of Firefox v57. Hopefully Piro can work with the Firefox team to eliminate the mandatory horizontal tab toobar. It looks like there's tickets filed for this here:

https://bugzilla.mozilla.org/show_bug.cgi?id=1215064
https://bugzilla.mozilla.org/show_bug.cgi?id=1332447

Excellent addon.

One very useful addition would be the ability to switch between tabs by scrolling with the mouse wheel while hovering above the sidebar

The "new child tab" does'nt work, even if correctly selected in the pref
There is no possibility to middle cliq and have the possibility to create a new child tab...

WOuld very great if TTS interact with multi-account containe, so that a new child tab has the same contaner as its parent

Bigthanks !

Usable add-on.
I am missing the feature to hide tabs automatically or at least using some shortcut for example F4.

Seems to be a reasonable substitute for the XUL-version. An absolutely essental addon for firefox!
But I like to report a bug. When I click on a tab and drag it to another window, the tab disappears from the source window (as expected), but does not reappear in the destination window. First you believe that it has been erased, but turning off the sidebar by clicking the show menu, and the turning it on again makes the moved tab magically reappear.
I hope you can fix this soon, since it is very confusing..

Tree style add-on really works for me to reduce the hanging of the browser when opened so many links and also tabs can be shown in front. Thanks..

The previous version had exactly what I was searching for, meaning the ability to group (and collapse) tabs together while remaining at the top like the default tabs.

I am using half-width windows all the time, so the side bars take way too much space for me, so sadly I had to disable it once firefox forced its update and new plugin versions on me, but I am still hopeful that one day it will give us that functionnality back.

This extension would be perfect if the author could hide the children tabs from the top bar tab so you would have only the parents on the top and the children on the left, a superlative UX tweaks!

I'm very glad Piro had a revised version of Tree Style Tab for the latest major revision of Firefox. The user interface has changed, and functionality is somewhat less, but the core features remain present.