Rated 4 out of 5 stars

This is a great extension that is very similar to the now defunct, TabGroups Manager, which is definitely a good thing. I hope you continue to keep it updated. Obviously, the main thing it is missing is the ability to drag and drop tabs between groups, which I am sure you are working on. The other thing is a tab counter on each tab group. That would be nice to have. It would also be great if we could organize the tab groups by alphabetical order, or just be able to manually move them. So close to perfection!! It's even working with the latest Nightly UX 31.0a1! Thanks!!

This review is for a previous version of the add-on (1.2.1-signed.1-signed).