Skip to main content


If you use Thunderbird as a client for Microsoft-owned accounts and have sign-in issues, especially recently, be sure to check our newly updated KB article on the topic. https://support.mozilla.org/en-US/kb/microsoft-oauth-authentication-and-thunderbird-202

We'll be keeping a close eye on these issues, and thanks to everyone who has both let us know about their problems and jumped in to help others. 😊 💙

#Thunderbird #Outlook #OAuth2

in reply to Thunderbird: Free Your Inbox

Thanks, worked for me to resolve repeated authentication failures in recent days.
This entry was edited (3 months ago)
in reply to Thunderbird: Free Your Inbox

Hey, if I'm viewing an email and press the 'k' key, what did that do? The email seems to have disappeared
in reply to DonatellaInCali

@Donatella Hiya! On standard US keyboards, "K" *should* advance you to the next unread email.

Are you by any chance using an add-on that lets you remap keyboard shortcuts? Or do you have a non-standard keyboard configuration?

~Jason

in reply to Thunderbird: Free Your Inbox

n takes me to next unread

Maybe k is ignore thread. I have no idea what that means lol

in reply to DonatellaInCali

@Donatella You're absolutely right, that's my mistake! Here's more info about Ignore Threads: https://support.mozilla.org/en-US/kb/ignore-threads

~Jason

in reply to Thunderbird: Free Your Inbox

Changed to OAuth2 and am now getting continual popups saying my browser doesn't support cookies.
in reply to don albertson

Can you go to Settings > Privacy and Security and enable cookies?

-Monica

This entry was edited (3 months ago)
in reply to Thunderbird: Free Your Inbox

I did that, and it resolved the major issue. I hadn't considered T-bird's internal browser.
in reply to Thunderbird: Free Your Inbox

thanks, I was having the message about wrong login and since I used an application password and reseted multiple times I was blaming Microsoft, but with oauth, everything works fine again!
in reply to Thunderbird: Free Your Inbox

had this problem just today with an old microsoft account. Thank you for the prompt resolution!! 💙
in reply to Thunderbird: Free Your Inbox

Haven't noticed any change in Thunderbird, but in recent days though I've been getting intermittent auth issues for Hotmail in K9, which doesn't support OAuth for personal Microsoft accounts (but I'm using an app password).
in reply to Thunderbird: Free Your Inbox

Having been through this process at work recently, it seems that a possible cause of problems could be #Thunderbird not being set up to allow cookies (which privacy conscious users naturally tend not to permit). It seems that some #OAuth2 login pages may need cookies to be allowed in order to work, so it is probably worth adding this to the support page as a suggestion to check this setting.
in reply to davecykl

@davecykl We've gone ahead and opened an issue on the page to add the suggestion to check cookies. Thanks for the suggestion!

-Monica