When I switch channel from stable (78.13.0) to candidate (91.1.1), Thunderbird asks me to set up a new account without keeping my current account preferences.
Strangely, there is no such problem when I switch to beta (93.0b3) which works fine using my account preferences .
is this perhaps a requirement of thunderbird itself ?
a switch from 78 to 9x seems like quite a version jump, perhaps there is no migration in the app itself ?
when I switch from 78 to 91 i’m asked to create a new account
when I switch from 78 to 93 i’m not asked for anything… 78.13.0 preferences are sustained
That’s upstream bug #1726808, which is fixed in the upcoming 91.2 release. That explains why you’re seeing the problem in 91.1.1 (which doesn’t have the fix yet), and not in 93.0b3 (which does have the fix).
This happen to me too, being in the candidate channel if the Thunderbird snap get refresh to a new version I lost my previous preference so I have to start all over again.