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.

出于想要给视频做笔记，但不信任Bilibili提供的内置笔记工具（而且功能太简陋），因此寻找可以获取当前视频Timestamp的插件，这一款界面美观，简洁而完美契合需求，如果有Notion/ Obsidian插件与之配合就好了！

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.

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).

This is a game changer for firefox.

Best addon! Лучше чем TST!!!

Unnecessarily complicated.

WARNING: If you use large numbers of tabs this add-on will frequently destroy the organisational structure of the tabs you have sorted into different panels when closing and reopening a browser session, requiring you to potentially reorganise large numbers of tabs or close the affected browser windows and attempt to load a saved snapshot of them, wasting a lot of your time.

As other reviewers have already mentioned, this problem doesn't appear to be an issue if you only use small numbers of tabs.

I tried this add-on after being a long time 'Tree Tabs' user (which handles large numbers of tabs reliably) and was hoping Sidebery would be a potential replacement with more QoL features.

Unfortunately Sidebery's inability to reliably save and restore browser session tab structures with large numbers of tabs means I would not recommend this to anyone who browses with large numbers of tabs.

Hopefully this issue can be fixed as Sidebery has a lot of good things going in its favour (e.g. clean UI, snapshot save system, panel sorting, containers) however until this critical issue is fixed the user experience is frustrating and wastes their time.

It's great when it comes to keeping tabs neatly arranged on a smaller scale, however, it doesn't manage large numbers of tabs (500+) and containers (8) well, especially when combined with multiple windows. With multiple windows the containers become routinely reset (all tabs are moved to the default container) and the add-on confuses placement of some tabs. Pinned tabs become routinely unpinned and I have also lost the configuration of containers several times now, which is a shame because I loved using the simple automation and integration with firefox containers this add-on offers. It is in my opinion a perfect tabs manager when it comes to the features, hovewer the performance is lacking.