Thunderbird Support Forum

Since today, we experience an unusual problem in Mozila Thunderbird. The program ask for the password for the email that is already sign in. And if we enter the password, it ask for the password again. The error is "login to server outlook.office365.com with username failed". Our company need to solve this problem because we use Mozila Thunderbird for over 100 employee.

Thank you!

I keep getting the above message. I looked up online and there are free apps to fix same but I am worried some of these apps may compromise my computer. Can you recommend a free app that is safe please? Thank you.

Today my 102.0.1 has disappeared. TB has worked for me for decades including now on 102.0.1 which is the latest version. I've downloaded 102.0.1 again but still doesn't show up.