add new office365 account: Microsoft "sign in" does nothing. Popup browser window problem?
I have to add a office365 accounts. Everthing works, until Microsoft's popup window requires to sign in to MS 365.
When I click in "Sign In", nothing happens. The button becomes light blue for some seconds, then turns back to blue again.
The credentials are correct, there is no error message, nothing.
Probably a problem with the popup browser window?
Javascript is enabled. Anything else that could break this?
TB 143.0.1 (aarch64), MacOS 15.6.1
All Replies (3)
You need to allow cookies in Thunderbird for the OAuth authentication to work. Make sure you don't use a VPN while authenticating. Also, don't run any software blocking TCP port 80 on your computer, e.g. like a local web server.
Cookies are allowed, there even are some outlook.office.com and outlook.office365.com cookies. No VPN, no blocked ports.
I copied the URL of that window into Firefox with success. I saw the Authenticator dialog, even the dialog to accept Thunderbird access, but "can't access localhost something" after that.
So, it seems there's still a problem with the TB popup window. It works in FF but not in TB.
I'm guessing here - you may want to clear those existing cookies. If this doesn't cut it, then I'm not sure what else to suggest. I'm not a MAC person, and things may behave different on a MAC.
Trying to authenticate with Firefox will get you nowhere, you want to authenticate using Thunderbird.
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