I am attempting to login to a gmail account on Thunderbird but I keep getting the following message:
Authentication Failure while connection to server imap.gmail.com
I have changed the related application password 5 times with no change in behavior. But if I use the web gmail the password changed and I can read my email. At present I can not read, download, or save my email with Thunderbird.
I have two other email accounts but they are not affected.
Any idea what is going on here?
Best Answer
I was able to solve this issue by changing the following setting
general.useragent.compatMode.firefox
totrue
(found in Edit/Preferences/Advanced/General/Config Editor).