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

Avatar for Username

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
Otwarte

Viewing particular Mails freezes Thunderbird

Thunderbird Awarie i niska wydajność
julian46 replied 1 miesiąc temu
julian46
julian46

For a few days I'm having trouble with Asana mails (notification mails informing me about replies, comments, etc).

Clicking on the mail to view it freezes Thunderbird for a good 5 seconds while one CPU core spins at 100%. This only happens with Asana mails (or at least I haven't found any other problematic senders).

I guess it's a problem with validation or parsing of the mail's HTML content. But I don't know how to debug this.

I can't pinpoint exactly when it started happening, but it was around the time I've switched to the [new snap release track](https://support.mozilla.org/en-US/kb/channel-choices-thunderbird-snap-and-flatpak#w_snap-channel-changes-in-2026). But since this happens with Snap and Flatpak I think the culprit may be the 153.0 update.

Things I've tried:

  • Clearing cache and msf files.
  • Troubleshooting mode with add-ons disabled.
  • Reinstallation. Creating new profile + importing old data.
  • Switching from Snap to Flatpak
  • Switching Message Body display to Plan Text or Simple HTML.
  • Disabling HW acceleration.
  • Checking console for suspicious output.

Anything I can do to create handle the problem or collect information for a proper bug report?

For a few days I'm having trouble with Asana mails (notification mails informing me about replies, comments, etc). Clicking on the mail to view it freezes Thunderbird for a good 5 seconds while one CPU core spins at 100%. This only happens with Asana mails (or at least I haven't found any other problematic senders). I guess it's a problem with validation or parsing of the mail's HTML content. But I don't know how to debug this. I can't pinpoint exactly when it started happening, but it was around the time I've switched to the [new snap release track](https://support.mozilla.org/en-US/kb/channel-choices-thunderbird-snap-and-flatpak#w_snap-channel-changes-in-2026). But since this happens with Snap and Flatpak I think the culprit may be the 153.0 update. Things I've tried: * Clearing cache and msf files. * Troubleshooting mode with add-ons disabled. * Reinstallation. Creating new profile + importing old data. * Switching from Snap to Flatpak * Switching Message Body display to Plan Text or Simple HTML. * Disabling HW acceleration. * Checking console for suspicious output. Anything I can do to create handle the problem or collect information for a proper bug report?

Zmodyfikowany przez julian46 w dniu

Wszystkie odpowiedzi (2)

Wayne Mery
Wayne Mery
  • Moderator
  • W pierwszej 10 uczestników

I've asked Julian to email me a copy of a problem email.

julian46
julian46 Zadający pytanie

I've sent the information.

On that note, I also found out that the freeze does not occur when selecting several of the emails at once. Likely because the messages only show a summary rather than the full contents. See screenshot for what I mean.

Zadaj pytanie

Aby odpowiadać na posty, musisz zalogować się na swoje konto. Zadaj pytanie, jeśli nie masz jeszcze konta.