I just ran into an issue with the new Thunderbird 148 release that might cause some consternation if you use it to check a lot of AOL or Yahoo accounts.
According to the Thunderbird 148 release notes:
Yahoo, AT&T, AOL accounts are switched to PKCE, a more secure auth protocol
Normally, that wouldn’t be a big deal, since all the user needs to do is reauthenticate once for each impacted account. If you monitor a bunch of accounts (five? six? more?) from Thunderbird, however, you may trigger a “suspicious activity” alert from the service provider after “too many” logins from a single machine.
Even though I successfully supplied the correct passwords, by my fourth or fifth account, I was locked out of my subsequent accounts. In most cases, I was able to recover access by going through an account recovery process, but for accounts that don’t have an alternate access path (like a recovery email address or phone number), I appear to be locked out unless I call AOL support. Adding insult to injury, according to AOL’s support page, AOL phone support now appears to be a paid service.
I’m too busy to resolve the latter situation right now, but a note of caution is advised to users with a lot of accounts in Thunderbird. For the time being, you may wish to stick to version 147.x. Also, it is a good time to double check that you have set up recovery emails/phone numbers for your accounts.