Join us to show up for other Firefox users 🦊. Earn fun badges and Mozilla swag vouchers! Find out more: https://mzl.la/askafox150

Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Przeszukaj pomoc

Unikaj oszustw związanych z pomocą.Nigdy nie będziemy prosić Cię o dzwonienie na numer telefonu, wysyłanie SMS-ów ani o udostępnianie danych osobowych. Zgłoś podejrzaną aktywność, korzystając z opcji „Zgłoś nadużycie”.

Więcej informacji

After migrating to the new version on windows 11 thunderbird freezes, with huge consumption of memory and processor resources

  • 6 odpowiedzi
  • 1 osoba ma ten problem
  • 110 wyświetleń
  • Ostatnia odpowiedź od wavdwesthuizen
  • Rozwiązane

I need some further assistance please. My new thunderbird installation does not want to function. The historical emails are quite large but archived annually.

I find that after about 20 - 30 seconds, it freezes. I have tried all the options, safe mode, extensions removal, delete of .msf files, but nothing. Any pointer to where I should look please

I need some further assistance please. My new thunderbird installation does not want to function. The historical emails are quite large but archived annually. I find that after about 20 - 30 seconds, it freezes. I have tried all the options, safe mode, extensions removal, delete of .msf files, but nothing. Any pointer to where I should look please

Wybrane rozwiązanie

Hi, after much fiddling, I uninstalled, and reinstalled cleanly. Fortunately I had a backup copy of my data files. I then copied the data files over to the new installation. I reinstalled Avira and all worked fine.

My theory is that the bug is in the tool that you have to import data from another installation. The first time I installed it provided me with an option to import data. I pointed it to the old version files, and it processed. But thereafter it froze.

I will be happy to provide more information or assistance if that will help the thunderbird team.

Przeczytaj tę odpowiedź w całym kontekście 👍 0

Wszystkie odpowiedzi (6)

What version number?

Version of Windows is Edition Windows 11 Home Single Language Version 22H2 Installed on 2023/07/28 OS build 22621.2070 Experience Windows Feature Experience Pack 1000.22659.1000.0

And Thunderbird 115.1.0

What is your anti-virus software?

I use Avira antivirus. I fully uninstalled it, but it had no impact.

I fully uninstalled it

That would still leave Microsoft Defender running as your anti-virus software. Try to start Windows 11 in safe mode with networking enabled. Does the problem go away?

Windows safe mode disables anti-virus software. This is a troubleshooting step, not a solution.

Wybrane rozwiązanie

Hi, after much fiddling, I uninstalled, and reinstalled cleanly. Fortunately I had a backup copy of my data files. I then copied the data files over to the new installation. I reinstalled Avira and all worked fine.

My theory is that the bug is in the tool that you have to import data from another installation. The first time I installed it provided me with an option to import data. I pointed it to the old version files, and it processed. But thereafter it froze.

I will be happy to provide more information or assistance if that will help the thunderbird team.