Thunderbird Community Forum

I live in Germany and use Deutsche Telekom's T-Online system for my main e-mail system, so my email address is: k.vanleuven@t-online.de

Due to some security problem, I had the change my T-Online e-mail password and since this time I can't send or receive e-mails from my German version of Thunderbird. Thunderbird asks me for the"secureimap.t-online.de" server password, but it doesn't recognize the new password that I have for my T-Online e-mail system.

I store my e-mails in various folders folders in Thunderbird and I want to continue using Thunderbird for my e-mail management.

I think I might have to re-install Thunderbird from scratch. Must I do this, if so haw do I save all my e-maile files?

Your help in solving this problem will be very much appreciated.

Karl Van Leuven

I.changed my password but not taking it how do I get into my. account on thunderbolt to enter it for my Yahoo account a box opens up to. enter but never takes the password can i go somewhere ekse in Thunderbird to add it.

Thank. you

I have a coworker who changed his password through our hosted webmail account and now can't receive email in his desktop Thunderbird.

How do I log him out of Thunderbird so I can log him back in with his new password?

Thank you.

I recently transferred my Thunderbird account to a new PC and have been getting a pop-up to enter credentials for a google account every 10 minutes or so. After the pop-up is opened (sometimes in the background), no new mail will be fetched until the pop-up is closed, this is frustrating as I sometimes don't notice the pop-up so seems like I am not getting emails. The pop-up is for Google account, but my mail accounts is from MS Outlook, I don't use Thunderbird for any Gmail and I don't think this Thunderbird profile is associated in any way with my personal Google account.

This is a work computer, so not associated with my personal accounts. I dont want to put my personal Google login here and I don't know how to stop the pop-up.

The transfer was done by copying my profiles folder to the new PC, then installing Thunderbird and creating a new profile, and pointing to the profiles folder. I've had the same profiles folder for 10-15 years or more and not seen this before.

Sam

After an apparent system-wide aol failure, I can no longer log in to my Thunderbird account. When I open it, the message pops up: "Login to server imap.aol.com with username Leisterr8@verizon.net failed." And it asks for a new password. I looked up my saved passwords and tried to enter them. But that does not work. I don't see how to enter a new password. I am able to log in to my aol.com account with my password. But that does not seem to be the same as the password for the Thunderbird account.

I am trying to read my gmail email using Thunderbird. However, once I fill in the server configuration, I get a 2fa pop-up window with an error message. See attached.

What can I do to get this to work? Or is Thunderbird unable to access gmail?

Thanks in advance, Mike.

I can get to the "stored passwords" box, but the email I need to change the password for isn't listed there. I have tried to send and receive messages but nothing makes a "enter your password" box pop up. All I get when it tries to retrieve messages from Gmail is a box to give my email, (just that, not a password) and then an error message that it won't work and there is no more information. I'm using Linux. I've had both this particular email address (as well as others) and Thunderbird for years, perhaps two decades, and I can't figure out what to do now. I was going to change all my email passwords for security reasons, but there's no way I can do that until I can get Thunderbird working with POP access again. Thank you.

After installing upgrade to 139.0.2, POP downloads failed. Last was on 6/19/2025 at 8:19PM. I deleted both saved passwords.. Went to AOL and generated a new APP password but there was no way to upgrade to it. I sent a test message to myself [ smtp] and AOL logged me in and TB generated the saved password oauth://login.aol.com (mail-w).

However even with shutdown TB and restart, there was no request for a POP password [ such as the new AOL APP generated one. What should I do? Is this a bug? I can read and use AOL mail on my browser [EDGE]. LKint@verizon.net

I changed my Google account password just today. I have used Thunderbird on PC for Gmail without issues for years. I went into Thunderbird Saved Passwords and changed the appropriate line to the new Gmail password. I restarted Thunderbird and tried to send a test e-mail. I kept getting "Login to account Google Mail failed" with a box of 3 options, Retry, Enter New Password or Cancel. When I click on either Retry or Enter New Password, it doesn't give me a chance to enter a password and goes immediately into the same "Login to account Google Mail failed" box with the 3 options. I searched and read the support and one of the option is to remove the line from Saved Passwords and re-create it. I did that and tried to send another test e-mail. Now I'm still not getting a chance to enter a new password. I keep getting the box with the 3 options which doesn't allow me to enter a new password. There isn't a new entry in the Saved Passwords.

Strange thing is Thunderbird is receiving new e-mails fine. I'm just not able to send.

Thanks.

This morning, Thunderbird asked me to sign in to my two gmail accounts. Why, I have no idea. Later, I wrote an e-mail in my cjbbrussels@gmail.com account, but it won't send.

It looks like the password is incorrect. I'm not sure how to correct it.

Please help.

I'm setting up a gmail workspace account. I know that imap is enabled and that authentication should work through oauth2. That's what I configure and TB confirms that it can connect to the account during creation widget.

I click continue, and a new window opens which contains a site from Google asking if I confirm that TB can access my account. I click on allow, and the content in that popup disappears, but the popup remains open. Just with a blank screen.

I've tried several times. Cookies and JavaScript are allowed and enabled.

What else could be wrong here?

Suddenly I am getting a pop-up window on Thunderbird asking me to sign in to continue with Mozilla Thunderbird email. It populates my email address and after clicking ‘next’ it says.

‘400. That’s an error. The server cannot process the request because it is malformed. It should not be retried. That’s all we know’.

i cannot send or receive through Thunderbird, at present. Who is the genius out there that can tell me what to do?

I cannot be more specific I dont know how to name the items that are missing 1 Cant open new email to send 2 Cant download my emails 3 Cant open an address on my new email to be sent 4 I want to reset my factory reset my Thunderbird so I can start to use it again 5 Cannot find my passwords, keep on been refused axcess to my emails

When I download my mail from the server, my system sends a password to verify who is downloading the mail. Where, on my end, is the password located. I have forgotten what it was and want to also access my account from my phone. Need to know what it is, not change it. Thanks Charlie TB 38.5