Hi there, is this a bug or did I do/get something wrong? ( I relied on https://support.mozilla.org/de/kb/tab-gruppen-in-firefox ) As there is the option, to "save and close" a tab-group, I thought it would be possible to acces the group again, after closing. This seemed to be the case, as clicking on the often looked for little "v"-button next to the tabs, provided me not only with a list of my open tab-groups but also with the menuepoint "closed groups", clicking on which, the closed groups were listed. I was happy about the tool and started to use it quite intensely, creating more than 10 closed groups, to which I could add additional tabs, although the groups were closed. Well, so far so good, yesterday I found out, that "close and save" is not really saved? It just doesn't have "Closed groups" (geschlossene Gruppen) anymore. Is that behavior according to plan (not mine, but the developers one) Is there any way I could get the closed groups and/or the tabs in them back? Thank you. Svenja