I originally gave this 5 stars, but as time went by it got more and more erratic. Maybe because I had many tabs open?
More and more often, large numbers of tabs would vanish; sometimes several groups would lose most of their tabs. I could usually get most of them back from the backups, but the tabs I had added within the last day would not come back.

Fantastic extension. Makes managing tabs and tab groups a breeze. A few issues:

1. The extension makes backups in my download folder, which is not great since I like to keep my downloads folder clean.
2. Does not yet play well with the new in-built tab grouping feature from Firefox. Hoping this will be resolved soon.
3. The black icon color blends in with my black window color, which makes it nearly impossible to see the button.
4. On first install, the existing tabs don't integrate with the extension and need to be manually moved in.

Those aside, It's such a great extension, easily one of my favourites. Thanks!

Best Tabs extension.
Would rate 5, but after the latest Firefox update, the tabs that are not in a group, are not visible at the extension, unless you add them to a group.
So, if you open a new ungrouped tab and close out of Firefox, it disappears, since it is hidden and it is not in a group.
Also, when you close out of Firefox, some tabs, sometimes gets ungrouped, and since you cannot see ungrouped tabs anymore, you got to find them from Firefox's drop down menu, since they are hidden.

Looks promising, but does not support pinned tabs.

Recently Firefox added its own tab grouping feature that could synergize really well with this extension, but unfortunately there's a bug:
When you create a Firefox group it also creates group collapse button for it, and when you switch to another STG group, it hides the grouped tabs but not that collapse button.
Hope it gets patched, because it's a bit janky and annoying.

Funktion Top, einfacher Wechsel zwischen Tab-Gruppen und Managen der Tabs. Aber bei Updates schon zweimal die Tab-Gruppen verloren und nun nur noch in der JSON-Sicherung wiederfindbar und nicht importierbar oder so

отличное расширение

In the past week or two I keep losing all my settings for this. I did (belatedly) create a back up .json, however even that, as of today, is not being recognized as valid...

Hoping this is seen and dev, or other users, can offer insight, as this is one of my most valued extensions.

Cheers 🍻

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With that being said, I love the add-on and appreciate the QoL improvements it brings to my internet. Can't imagine not having it at this point.

This is THE tab manager I was looking for in Firefox. It took a bit to adjust and I thought I preferred the tab grouping I've used in chromium based browsers. But this is so much cleaner, easier to organize and reason with, and maintain a solid separation of concerns with tab grouping.

why is this "recommended" by firefox exactly?

Doesn't work on Android where tab logic on Firefox makes absolutely no sense

Exact what i needed, the best!

I love this extension. It allows me to focus on work one tab group at a time vs. having a million tabs open at once.

Un module vraiment essentiel pour Firefox, un grand merci aux devs !
Ca serait super qu'en complément de la nouvelle MAJ Firefox des "tab groups", les tab groups soient propres à chaque groupe du module. Par exemple, si j'ai un tab groups "réseaux sociaux" dans mon groupe "privé", j'aimerais ne pas le voir dans mon groupe "travail", plutôt que de voir un tab groups vide.

Fixfox devs should have taken inspiration from this extension instead of copying chrome groups. This extension is truly life changing.