Brilliant if it worked Rated 3 out of 5 stars
The functionality that this extension provides would really enhance firefox, but unfortunately it stops working after the second reboot of firefox. This happened with a similar extension I found that had similar functionality, but I am not sure whether this is a coincidence, or a common obstacle for extension devs when dealing with tab groups.
Everything works as expected initially, although I did see some "anonymous" groups. To resolve this, I just moved the tabs to groups that were properly named. After I restarted firefox twice, the new tab group icon with the dropdown menu turned back to the standard one without the menu, and then there was no way to access it.
Excellent work so far, but a pity that it doesn't work.
It's a known bug, but in my case it's easily fixed by disabling this addon and then enabling it again. Since this is a restartless addon, the effect can be seen immediately.