大量にタブを開いていると、ハングし、
Firefoxを再起動すると、一部タブが「新しいタブ」という名前に変わり、
以前開いていたページが開かれなくなるバグが何度も発生しました。

Great extension, have used it since I discovered it some years ago. I love that it is still being worked on and updated!

Using with Firefox Developer edition, the Firefox 57+ version is pretty good. I'm used to having bookmarks open on the left side and tabs on the right, which doesn't look possible anymore, but I can adjust. The one thing that *really needs to be an option or default* is getting rid of the default tab-strip on top like the old extension did. It would be most preferable if it just showed the title of the tab you are on, like the old extension did.

I can't live without this extension, so I'm putting up with having a tab bar on top AND a tab bar on the side, but that is definitely sub-optimal. I see there's a way to disable the tab bar on top with a "chrome/userChrome.css" in the Firefox profile folder, but I'm on the fence about showing nothing up there (most prefer title of page).

This is a new version so some bugs are expected, hoping for the best, and thanks to Piro for this great tab organizer.

You can disable the horizontal tabs on the title bar by adding the following line to userChrome.css in the Chrome directory of your Firefox profile: #tabbrowser-tabs { visibility: collapse !important; }

If you don't have the Chrome directory and userChrome.css, make them. Go here for information about how to access your firefox profile: https://support.mozilla.org/en-US/kb/profiles-where-firefox-stores-user-data

I hope Piro-san will solve this in a smarter way.
And Thank you so much for your hard work. This extension is the reason why I never switched to other browser.

I am addicted to this extension since 2.5 years and suddenly firefox updates screws it. It is showing tabs in both horizontal way and tree style. Now I am stuck with a weird looking UI. Had to disable.


PLEASE REMOVE THE OLD WAY OF SEEING TABS. FFS

It shows the old tab view AND the tree style tabs at the same time when using it with Firefox 57. I had to disable it, but I'd really like to use it again.

Used with Firefox Dev build: I really enjoy this add-on. I love the premise. Stability seems iffy: (1) I sometimes observe the parent tab separated from its children, i.e. there will be tabs in between the parent and the child at inconsistent depths; (2) I have observed once in the first few hours of using it the whole sidebar becoming blank and unusable, requiring a restart. I also have one suggestion: I find that this add-on simply supersedes the vanilla browser tab strip, so it would be nice to have an option to hide the default horizontal tab strip.

amazing! please keep it updated!

The best way to organize your tabs! Powerful yet lightweight on system resources.

Ty so much for rewriting this as a webextension!
Performance amazingly now <3

Adds a panel to the left. Background-tab links are opened as tab children. Has drag&drop to move tabs around. Specific display for pinned tabs. Does not hide the tab bar, so right now, I'm using it with full-screen navigation. One of the best tab management add-on, comparable to OneTab.

Makes better use of wide screens and shows more context.

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
_______

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.

Does what it says on the tin, no useless or overcushioned functions. Supports WE, and makes heavy-tab browsing much easier.

What's best is that NO other browser or extension can do this. Only TST can.

Like many other commenters, the possibility of having tabs
1) on the side
2) ordered as a tree
is one of the main draws of Firefox (privacy enhancements and extensions being another).

However, in Firefox 57 on MacOS, the performance with the add-on seems worse than with the native tabs UI, both at startup (when displaying my 100+ tabs) or when I opend many tabs in a short span of time.

The problem could well be due to the WebExtensions API that it uses and not the add-on itself, but it'd be great if you could confirm that you have thought about optimizations, piroor.

But most importantly: thanks for your work! :)

PS: I also had an issue a month ago, not long after upgrading to v57, where the extension would permanently use up a lot of CPU (the load went down as soon as I disabled it, so the causation link was pretty clear). I ended up solving it by saving all my tabs as bookmarks, clearing the tabs, then restoring them: the previous tree must have been "corrupted" in some way.