Really useful tab manager.

It has a lot of settings and functionality, but it only shows up when you need it.

Mostly great. Lacks tab filter for the sidebar. Worst thing about it is the aggravating UX trying to move around sidebar tabs with the mouse: 90% of the time it just fails (linux), so can't really organize things into trees easily, and moving tabs otherwise (with "move tab hotkeys" for example (move tab to end)) does the wrong thing (pulling a whole bunch of tabs under some tree further up).

not really anymore useful than default firefox...

I was a Tree Style Tab user for 12 years. The first time I tried Sidebery I reverted back to TST. But recently the number of tabs I open put it under pressure and I finally switched. For me Sideberry is way more smooth and responsive than TST, way more configurable and doesn't get in your way.

Best All-In-One tabs manager + Groups manager + Containers manager + Bookmarks. Thank you so much.

Very, very nice. I used TST sometimes, but this presents the configuration in a much nicer way and all around looks better. I also love that bookmarks are built into the same panel here. This feels much more like an actual FF addon. Add in auto-hide sidebar CSS and this is perfecto.

Reading the neurotic 1 star reviews is truly a guilty pleasure. Schadenfreude of the highest degree. You people need to log off the computer for a few months and take a walk outside ;)

Looks gorgeous and replaced Tree Style Tabs for me.

I love the little loading and loaded swoosh animations.

I use Sidebery primarily to manage tabs, of which I typically have many open. It seems to do a mediocre job of this. Here are the functions I use and my experience with them:

1. Move tabs within a window. For some reason, Sidebery's drag and drop is terrible. Usually, when I drop the tab on its new position, nothing happens. It typically takes 4 or 5 tries before anything happens. It's definitely easier to use Firefox's tabs than Sidebery's.

2. Tab Organization. Sidebery does support tree structure on the tabs, which allows for some organization. However, it feels awkward to use because of the drag and drop problem. Also, there's no way, as far as I can tell, to mark or label a tab or group of tabs, to make it easy to find later. Overall, a weak implementation.

3. Move tab from one window to another. Again, Sidebery has a problem. After a length of time, Sidebery "forgets" the titles of my windows, and shows only a generic list. To get the titles back, I need to shut down Sidebery and restart it. Unfortunately, this is pretty much every time I need to move tabs, which is fairly often.

4. Search for a tab. I haven't been able to find a way to do this with Sidebery, so I just use the Firefox feature of entering % in the search bar of a new tab.

Many users have given Sidebery 5 stars, despite it being a very mediocre
extension.

PLEASE do not rate this extension highly for no reason!

I wish people wouldn't hand out stars for nothing. It pollutes the Firefox extension ecosystem with misinformation, making it hard to shop for good extensions. This extension is not worthy of 5 stars, or even 3 in my opinion.

Because it still seems to be under development, I gave Sidebery 2 stars, which I think is fair and in fact charitable. If it hasn't improved in the near future, I'll lower this to 1 star, which I think we should all do.

Absolutely wonderful. I made an account just to rate this extension 5 stars.
If you're living in tab hell, and want to switch to side-tabs, this is the extension for you.

I would also recommend hiding normal tabs by adding custom styles to userChrome.css.

自定义程度丰富，但是界面似乎只有英文，我英语四级没过，只能慢慢摸索。另外，有没有技术可以实现将浏览器的自身的标签栏隐藏，因为实在太占空间，我的笔记本屏幕不大，最好是类似edge浏览器那样的。thanks,my baby.


找到隐藏标签栏的方法了，界面清爽多了，链接给你们：
https://www.one-tab.com/page/mws1gzLrRNuEtLEqK7lvRg

Been using TST (TreeStyleTab) thus far, but had to change to Sidebery after seeing how many more functionalities it has. Was most happy when I saw that you can group tabs and then see them side by side, in a grid - finally, was looking for such a function.

leider gibt es das wieder nur in englisch. Ich lebe in Deutschland und wir haben hier die Sprache DEUTSCH! Für mich ist das also nicht zu verwenden!

the best was "All-in-one sidebar"

This is one of the best and most useful extensions I've ever been so lucky to come across. Particularly for someone who works often and needs to simultaneously have many tabs open and switch between them frequently. Personally, I do a lot of research and this is a miracle for my productivity, organization and sanity. Thanks you! Great Work!

Extremely complicated, but does not even remove the original tab bar from the top of window.

It eats up more space on screen instead of freeing room. So, what is it good for?

Не вижу смысла в этом аддоне, так как он не скрывает стандартную панель браузера со страницами

This extension allowed me to finally come back to Firefox after using some forks of older versions.
Truly excellent in that ability to have different tab panels with vertical tree tabs in them. Each panel is a different category. So much easier to keep organized and track of the tabs.
The only thing I miss from Tab Kit 2 is being able to color a tree parent and all child tabs of that tree one color to easily see those relationships at a glance.

I'm taking off one star because I have yet to find a compatible session manager that retains the tree and group structure.
This does not allow saving sessions (the snapshot feature auto-deletes as new ones are created, EVEN manually initiated snapshots get auto-deleted).