I upgraded from 91 to 102.2.2 on two of my Linux Mint systems and now only inbox and Trash folders are shown. Subscribe doesn't work. Only way I've found to see other folders is to go to settings, server settings, advanced and uncheck Show only subscribed folders. This results in a loot of folders that I don't want to see. I have a third Linux Mint system that has Thunderbird 91 and it works as expected and as it has for many years. When I try to subscribe the Activity Manager shows The current command did not succeed. The mail server for account {email address appears here) responded: SUBSCRIBE failed. It seems through the years that there have been problems in this area but I didn't have any in 91. I didn't find this being a reported problem in 102.2.2 but may have missed it. Anyone have a way to make Subscribe work? Thanks.