Gosh, some people do like to make life unnecessarily hard work. But then I have multiple email, calendar, address book synchronization and news server passwords to deal with and no way would I want to have to remember and type them all in. What's wrong with having Thunderbird store them for you?

Go to the stored passwords and delete them. Tools|Options|Security|Passwords->Saved Passwords

Close and restart Thunderbird. When it needs a password it will ask you for it. Enter it and make sure the "remember this password" checkbox is clear.

If that doesn't work, report back and we'll sort out which password files you might need to delete.

I'm surprised that you think it has changed in the current version. I'm not aware of any change in the password handling mechanism.

Thank you for your answer, but it doesn't help: - I already tried to delete saved password, but it keeps comming back - upon login, I get Google's login prompt (and not Thunderbird's) with no option to save pwd or not

(for the record, I am using Thunderbird version 52.2.1 (32-bit) now, on Win10)

I'm wondering if this has something to do with OAuth2 which sets a saved special code type password. Are you using gmail imap mail account? Is the Authentication method set as OAuth2 ?

Tnx, Toad-Hall:

• changing OAuth2 to Normal solved the problem (I guess)
• now I get Thunderbird's own login prompt and password is not saved