I had no tab groups defined so decided to try it out. It seems that if you click a group label, it will collapse it all the way if you are not focused on one of its tabs.

If you click on a group label that has one of its tabs focused, then that tab keeps showing with a number beside it. If you then click on a tab that is not part of the group, then it completely collapses.

So, it would seem that if all groups are collapsed there should be just one showing with a number beside it, unless you collapsed them while viewing a tab that's not in any group.

I was only testing this out with 2 groups with several tabs in each.

Alright, I see. This seems to be a new behavior because it had not been happening with any of my tab groups until yesterday, and I did just receive a browser update. Thanks for figuring that out.

I'm not happy with this change. In browser windows with only tab groups, one of the groups now always remains partially "open" unless I create and select a tab outside the group. This creates a more cluttered and inconsistent look, contrary to the real estate-saving and organizing intention of groups, and I would like to be able to set it to always completely collapse when closed, as before.

But I'm relieved to know that, as long as I create and select something outside of the group, it will fully close.

Thanks again, MarkRH. I was baffled.

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