Thunderbird Community Forum

Using Nord VPN: All Gmail accounts are set up for imap on Thunderbird:

1) With VPN on, I cannot send/receive emails from/to my Gmail accounts using Thunderbird. 2) With VPN off, I can send/receive emails from/to my Gmail accounts 3) With VPN on or off and logged directly on mail.google.com, I am able to send/receive emails

And, yes, I have tried different port numbers and all server info is correct for imap on Thunderbird as indicated by #2 above. This change happened overnight and Thunderbird always worked faultlessly with Nord VPN for years. I don't think we can blame Nord VPN for this, given #3 above.

Your thoughts?

Whenever I want to print an email the print preview doesn't show, it keeps displaying a spinning wheel. Printing also doesn't work (as in, I press Save, enter a filename and press Save; the dialog closes but no file is generated).

I already tried the Troubleshooting information -> Clear saved print settings, but to no avail.

Browser console screenshot attached. I'm using Fedora 41 and Thunderbird 128.11.0esr (flatpak).

I have been using Thunderbird to access my email at optusnet.com.au mail server. Thunderbird is no longer working with this account - webmail is functioning.

Optus support say they cannot tell me how to configure Thunderbird to access optusnet.com.au email accounts after some changes. They told me to contact Thunderbird support to get correct server configuration settings.

Can you assist with this please. Regards Murray

I can send without problem if I'm not attaching anything but when I try to attach, the program freezes and I have to force stop it. I don't have any addons and I tried disconnecting my vpn. This just started happening today. I can't find any answers elsewhere on the interwebs, I hope someone here can suggest something! Thanks

Thunderbird 138/139, Windows 11 Pro 23H2. While composing a message, after a few lines the app freezes. Both the compose window and the main TB window freeze. Only opening the Windows Task manager allows me to close them. This did not happen with earlier versions.

If I save the message every few seconds while composing I can get most of the message back and continue after restarting TB. This behavior is the same in both the normal and troubleshooting TB modes. I can't even find a crash log to send to Mozilla.

Where shall I look next?

Thank you!

I've downloaded the program to a second computer and put in my creditials and it's giving me an error "unable to log in at server. Probably wrong configuration, username or password." I've entered the correct info. Help

The Tunderbird program hangs all the time and after a while stops responding, the only thing you can do is close the program, it is completely impossible to work, Please help!!! Best regards Bronislaw <redacted>@henerman.pl

This has happened before and was only solved by deleting every possible thunderbird element from my laptop, (including my calendar, which later took many hours to re - update). An email from xfinity that includes a link to my xfinity account attaches itself to my tbird program in such a way that no new emails can be received. I have cleaned the cache, opened task manager and closed every tbird open link, I have removed all xfinity emails on the original email server (also xfinity). Nothing removes the problem message. Is there a way to remove it without removing the whole tbird program (and then reinstalling)? It was such a pain to do this last time around. When you do a normal clean out it doesn't actually remove every element. Going in to find every little thing causes me a lot of effort and stress. This one faulty message is making me give up on tbird altogether. Thanks for your help! Annie

I am running Windows 11, up to date. Just recently, I have been getting a reminder I did not create. I cannot delete it or even get it to snooze. All I get is an error message. Is this some sort of malware? It is driving me crazy.

Please help.

After updating Thunderbird to version 139.0.2 Thunderbird can't connect to my E-Mail provider! Getting error massage saying “user name or password are wrong!” It happening on my PC with windows10 Pro and the same on my laptop with windows 11 Pro. On my browser or my mobile, I can connect without any problem to my e-mail provider. After consulting my provider, his suggestion was to try installing my account again. I did but it didn’t work (same error) I tried installing older version which Thunderbird was functioning on. It didn’t work either. Even that I cleaned my PC from Thunderbird totally. To clear this point on Versions 139.0 and 139.0.1 Thunderbird function as always before. Up to now any Thunderbird update took automatically the existing setting without any problem. Any information how to solve my problem? Thanks.

Why Thunderdird now is so slow

Why you recommend to upgrade to ESR when the one that I had been using for years I don't trusted

I have Thunderbird: 128.10.1esr (64-bit)

Amparo

I have no idea why, but TB is wonking out lately with strange errors?

The folder '[Gmail]/Sent Mail on me@mydomain.com' could not be compacted because writing to folder failed. Verify that you have enough disk space, and that you have write privileges to the file system, then try again.

I have a ton of space and have not changed anything on the PC?

Any ideas?

why is this happening what is wrong please i used to lie Thunderbird but now i am not sure why this is-happening have uninstall reinstalled went to just answers or help they could not have sent multiple helps to this site i need to know why this is happening will get to the point where i will from today on leave Thunderbird i can not take this any more PLEASE HELP why the yellow line i did run ccleaner and glary i can go back on Glary but not on ccclener so now what

Ich habe ein neues Thunderbird-Profil erstellt, danach Thunderbird gestartet aus der Profilverwaltung, dann erscheint die Maske zur Eingabe der Zugangsdaten der E-Mail-Adresse. Die eingegebenen Daten sind richtig, es erscheint jedoch die Fehlermeldung: Anmeldung auf dem Server fehlgeschlagen,eventuell sind Konfiguration, Benutzername oder Passwort nicht korrekt. Wie soll weiter vorgegangen werden??

Thunderbird is not synchronizing with Mailfence. My other email accounts (Outlook, Gmail) work fine. TB connects to them, downloads message headers and displays the number of messages correctly. With Mailfence, the messages stop at "connected to imap.mailfence.com" and stalls there. The message disappears after a few seconds and nothing else happens. This happened this morning when I first launched TB. I then got an update to 128.11.1. No change. I did receive the Windows Update 2025-06 Cumulative Update sometime overnight prior to launching TB.