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

Avatar for Username

Sykje yn Support

Mij stipescams. Wy sille jo nea freegje in telefoannûmer te beljen, der in sms nei ta te stjoeren of persoanlike gegevens te dielen. Meld fertochte aktiviteit mei de opsje ‘Misbrûk melde’.

Mear ynfo
Dizze konversaasje is argivearre. Stel in nije fraach as jo help nedich hawwe.
Argivearre

Thunderbird freezes

Thunderbird App-ûngelok
Wayne Mery hat 1 jier lyn antwurde
tk982
tk982

I'm running Thunderbird 128.5.1esr (64-bit) on Windows 10.

After it has been running for some time (usually half an hour), Thunderbird starts freezing up. It seems to be stuck at getting new messages from the server.

I can't close the window when writing a new message, I can't read e-mails and even closing Thunderbird doesn't work. I have to maually end the process in the task manager. CPU load and RAM are not affecter and all other programs on the computer work fine.

If I run Thunderbird in troubleshoot mode, these issues are not present. I have no active extensions (just one disabled), I'm using the default theme.

Any ideas what could be causing these issues or how to troubleshoot this?

I'm running Thunderbird 128.5.1esr (64-bit) on Windows 10. After it has been running for some time (usually half an hour), Thunderbird starts freezing up. It seems to be stuck at getting new messages from the server. I can't close the window when writing a new message, I can't read e-mails and even closing Thunderbird doesn't work. I have to maually end the process in the task manager. CPU load and RAM are not affecter and all other programs on the computer work fine. If I run Thunderbird in troubleshoot mode, these issues are not present. I have no active extensions (just one disabled), I'm using the default theme. Any ideas what could be causing these issues or how to troubleshoot this?

Alle antwurden (3)

tk982
tk982 Fraacheigener

Can anyone give any sort of advice? I'm now on 128.6.1esr and the problem is still there. The only way Thunderbird functions normally is if I keep running it in troubleshoot mode. In normal mode, it freezes.

Mapenzi
Mapenzi
  • Top 25-meiwurker

Make a test by disabling hardware acceleration Settings > General > Network & diskspace > Indexing

Wayne Mery
Wayne Mery
  • Moderator
  • Top 10-meiwurker

If Mapenzi's idea doesn't help ...

Using the most recent version of Thunderbird 128.6.x or 128.7.x, ...

Does problem change?

If it did not improve, please create a profile using https://support.mozilla.org/en-US/kb/profiling-thunderbird-performance