When I try to open a new tab outside the group/container it just automatically gets pushed to the current open group(and linked container) I couldn't open anything in another group/container that's not the current one

Keeps bugging out. Can't use the same container for multiple tab groups. Settings are ambiguously named so I can't tell what they are supposed to do.

I don't know what happened, but from some moment extension started to hide my tabs - I couldn't find an option to disable this behavior, it is very annoying. I want all my tabs displayed in a row, not to open a list every time and search from there.

After some time this behavior is back, with v4.5.1 (FF 79)

Afer one of last updates regex for catching tabs stopped working correctly. I have some site inside my corporate network with address https://somesite/. I used "https://somesite/" filter to catch tabs with this site and it worked until some recent update. Now the only expression, that works, is "somesite", witch catches all sites with "somesite" in URL. Escaping "/" also doesn't work. It appears that any expression, that doesn't match examples in help tooltip, doesn't work (Firefox 70.0, addon version 4.2.2).
Update: Regex https?\://somesite/? works only when I open link to "somesite" in new tab inside browser. When I enter adress maually or open link from external app (i.e. Thunderbird), it doesn't work.

It used to work really well, but recently keeps forgetting all my tabs across reboots. It all started at the same time the "incognito mode" warning came. I basically became useless for me now.

I'm rating this 2 star for having a warning pop-up each time you open firefox: Please enable "Restore previous session" in browser. Even if you do have that option enabled, the warning still shows up.

Latest update bricks functionality unless it is disabled in incognito mode. I'm not interested in disabling it in incognito mode; I have been warned, thanks, there appears to be no way to disable the warning. Worked well until now.

Excellent. Only reason it doesn't have a 5-star is because not sure how to allow Firefox Sync to also sync this extension. That would be killer!

Update (Aug 6, 2019): Not sure if it's a new release but my tab groups keep getting deleted! Please help.

Sorry, The application works slowly, especially when switching between tabs and Panorama Tab Groups. This poor performance is since the fresh installation of this extension. It should be definitely improved.
I use FF Quantum 65.0.1 (64-bit) Portable version.

I'm sorry to down-vote this add-on but it's just too unstable: as others have said, it can't separate the tab groups - they end up dumped in one group all too often, or I get a tab error message and they simply refuse to load. This happens in 2 out of every 3 browser restarts. It's too much.

I love it but:
1. If firefox is not closed properly it's really really slow to reopen it and restore the tabs.
2. There is an error "Invalid tab ID"

效率低不说了，还丢组，上次重启Firefox之后就丢失了全部分组和标签。

With Firefox updated to v62 and addon to v3.1.1 it doesn't works. Tabs from one groups are shifted to others when change, and according to extensions like Copy All Tabs or All Tabs Helper, discarded tabs remanin loaded, showing rigth now more than 100, despite the current group has only 3.

Good first pass at this extension. Buggy - frequently, it will freeze up while switching tabs due to duplicate url's in more than one tab group.

I like most everything about this EXCEPT for the fact that the tabs reload whenever switching groups. That's very annoying. For example, if I download something in one tab, wait for it to complete, switch to a different tab group, and then switch back, the tab reloads and the file start to download again. That's just one example of the annoying behavior.

If it wasn't for that, I would be satisfied and would stop looking for a better tab manager. As it is, the search continues.

UPDATE: A later version of this fixed the tab reload issue, so now I'm much happier with it.

Changing groups just closes all your active tabs and opens the others. So when you switch back, all your tabs reload and you lose history (as in the back or forward button). Pretty pointless. It's about as useful as having a text file with links of your tabs, because you lose your history. This add on should take advantage of the new tabhide in the about:config and maybe that will help it work properly.
Also, even though I restore info from the old tab groups, it didnt bring the history so again i cannot hit back button. shame.

Fast switching still broken. Loading 74 tabs, taking ages. I don't want the tabs loaded even the active one, I can choose which tabs to load. Please fix. or provide proper instructions! Also are they loading from cache? They shouldn't be taking that long!
It just lost 40 out of 46 tabs, and pinned tabs, in 1 group after restarting firefox The list says there are 46 tabs, but only 4 in the drop-down list and the window.- why?.
It just lost tree tab structure, folders, groups and pinned tabs when I closed and re-opened a group. Incompatible with tree tabs - sometimes doesnt preserve Tree Tabs tree structure, never preserves folders or Groups, please fix or make that clear on the download page before people start spending hours setting up.
(It DID preserve tab renaming which is good)

When it works it is very good but these issues are becoming too much! Are you going to fix these and if so WHEN, please?

It seems to randomly create new groups and doesn't save tabs in your current group so that when you change groups and return to your original group lots of tabs have disappeared

使用两个分辨率不同的屏幕时标签组编辑页面有BUG；不能缓存网页，切换标签组必须重新刷新网页；使用之后便捷程度上没有明显提升。

分组会丢失掉, 不管是稳定版还是开发板, 重启下浏览器, 分组就没了

Reliability ZERO.
App full of neat and usefull functions. Works fast.

But evry day something happens that kills my groups.

for ex: If you close the window with alle the groups in it and restore it afterwards, tha taps arent in the group anymore. if you change to the saved group its full of empty tabs. some of the tabs might still work but most of them are empty.
all the groups are worthless because they are destroyed, without backup either way from firefox recovery session exprted tab backup you're screwed.
After closing and recovering the window you need to delete all the corrupted groups and save the currents window into a new group. you cant create tabs that arent in a group after you have already more than 1 group active.

Once All my groups just disappeared without warning. wtf?
and so on. full of bugs makes it unrealiable. but its potential is great.

This add-on creates the duplicate group each time I start Firefox. Idea of add-on is good, but this error makes it not convenient.