Thunderbird Community Forum

Thunderbird 148+ on Windows 11 repeatedly prompts for the password when synchronizing an Exchange account (professional) configured with the native Exchange support (no add-on installed).

The account only offers “NTLM” or “Normal password” authentication methods. OAuth2 is not available in the account settings.

During synchronization, Thunderbird asks for the password separately for many folders. However, clicking “Retry” usually works immediately without changing the password, and manually re-entering the same password also works.

The issue then reappears for the next folder, causing continuous authentication prompts (I have many folders...).

Actions already tested:

• deleting saved passwords and tokens,
• deleting/renaming key4.db and logins.json,
• restarting Thunderbird,
• recreating the account.

The problem persists.

This looks like an authentication/session handling issue rather than an actual invalid password.

My new Greenby account was hacked I had to delete thousands of scam emails so my Mozilla account appears to have been blocked. Can I get back into Mozilla or have I been permanently block

Hello, Previously, I had my email with Xfinity, but they stopped this service and set us to Yahoo Mail. I’ve had no luck in setting it up in Outlook, so I tried Thunderbird and encountered the same problem. I have Windows 11. I’m using the IMAP settings recommended by Yahoo. During the setup process, everything checks, but when it asks for an address, which is from Xfinity, and a password, which I’m not sure they’re asking for so I tried the Xfinity, Yahoo, and Mozilla passwords. I get the authentication error on each attempt. Help! Thanks, Parris

If I have a password to sign into my Thunderbird emails, where do I find it. I haven't gotten this requirement in the past so where might I find it now and/or stop those messages?

I had TB on my desktop for years and finally got it also synced to my phone. Then with a failure with Windows 11 had to wipe clean the desktop and start over. Cannot reinstall TB. I obviously have the correct e-mail and password as I was able to log into Mozilla and submit this question. I believe it is a problem with my user name and what is on my phone setup does not work with my desktop reinstallation.

I am trying to reinstall Thunderbird on my computer using Windows 10 and I get a pop-up box requesting to sign in to my Google account and then an authentication error message. How do I get past this?

I have Thunderbird on my Win 11 Pro Laptop and on my Samsung Android phone. My primary email account works fine on both devices. My secondary account with the domain name otakorp.org works fine on the Android Thunderbird app, but when I try to set it up on the Windows version it sees that it's a gmail server and sets both incoming and outgoing servers to Oauth2 authentication, but generates an unspecific error (see included image). Any suggestions?

Have a new computer and when they transfered my information they didn't do my email. I finally got found it an downloaded it but now it won't accept my password. Plese help I'm getting desperate. Thank you Mary Ward

It has been going on for two days. I tried restarting in troubleshoot mode and it didn't turn on the "Show Password" button. The version of thunderbird I'm using is Mozilla Thunderbird.

When I got into the "Show Passwords" in "Saved Passwords in "Privacy & Security", I had to click "Remove All" in "Show Passwords" to delete it, and now it turns off the "Show Passwords" in the "Saved Passwords" section, and now the OAuth2 is missing.

Attempting to install Thunderbird on an additional desktop using same address as my original computer has. But when I attempt to install on computer #2, Thunderbird doesn't recognize my email or password from computer #1.

Hi,

I am unable to get Thunderbird to work after my microsoft password was updated. I get the popup & enter my email & new password, but I never get the second popup to accept permissions. It just doesn’t go any further. I can see Failed login attempts for TB on the microsoft side. I am not too tech savvy, so I’m doing my best to troubleshoot!

This is Thunderbird 78.14.0 on mac 10.11, YES, that is old, it is a legacy mac! It was successfully setup with OAuth2 over 3 years ago & worked fine until the password update. I was able to add TB to an old 10.15 mac & it got the permissions popup & the account was added fine (but it is also using TB 150.0.2). Oddly, there was no 2FA prompts given, it just connected with my password only??

I had a number of devices that needed passwords updated, so I’m wondering if there was a conflict when trying to do this one? Do I need to delete certain files? I found where to delete the stored passwords & did that, but it’s not moving past that point to even store new ones & connect. I can’t grant permissions?

Also, I notice the successful TB login activity shows my IP address, whereas the unsuccessful one shows Browser Mozilla Firefox. I’m not sure if that helps with troubleshooting or not!

Thank you for your time!

I have tried multiple times to setup a new Outlook email to Thunderbird. I already have one setup and that's fine, but when trying to connect my new email account I keep getting the error

exchange auth error

I've tried everything to fix it.

The setup configuration all goes well, but then connection just won't happen. I've checked in Outlook and I have given Thunderbird permission but still it won't work.

I have the latest Thunderbird on my laptop. I have turned off the hub, but it still appears when I add an account. Sigh!

Please help!

Thunderbird keeps opening a Google authentication window, asking which account to use. I have two gmail accounts (both of which work just fine), and another google account that I manage a calendar for (it works fine as well). How do I work out which account is seeking authentication?