Nicolas Kovacs wrote: > Le 11/01/2026 à 13:31, Nicolas Kovacs a écrit : ... > I'll answer this myself, since I just found the solution. > > Start Thunderbird on the command line using the -ProfileManager option > and then select the correct profile.
i'm glad that worked. :) generally though in Debian upgrades from 9 to 13 would not normally be supported or expected to work. you happened to get lucky because the data and specific program you are using was stable enough through all those Debian versions as to not require a conversion. songbird

