oauth2 office365 password -> send -> password blanks -> repeat forever
Within the last few weeks, Microsoft changed how they handled oauth2 in thunderbird popups. I have an account at cornell.edu, managed by Microsoft and that has used thunderbird for a very long time. I've updated firefox and thunderbird to the latest on Windows and this problem remains:
Passwords and account IDs proven correct via access through web browser interfaces. Oauth2 / IMAP / StartTLS Click "Get messages". Pop up appears asking for 'netid' (email address) which is pre-populated and correct, and a blank square for password. Enter the password. Click 'sign in'. The password immediately erases to a blank. No other confirmation or notice or detail appears. Entering the password and 'signing in' many times does not change anything. The popup never disappears, it just stays there asking for the password, then erasing it.
The 'help desk' people at the universities have no idea about thunderbird, they offer to change the password which they do, then the web interface validates the use with the new password, but the thunderbird experience is the same. Tried the 'useragent compat' true setting suggested on the web -- no change. Tried 'safe mode' no change. Tried deleting all the stored passwords, no change. Help?