This might be helpful:
https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-or-
cpu-resources
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https://bugs.launchpad.net/bugs/2056197
Title:
Desktop freezes for 30s to a
Perfect, thanks. That log shows clearly that the kernel ran out of
memory, and the main causes are:
1. Firefox
2. Thunderbird
3. Teams
4. GNOME Shell
It seems to be only one Firefox tab causing most of the problem (10
gigabytes).
** Package changed: ubuntu => firefox (Ubuntu)
** Changed in:
Happened again, I believe, around 13:16. Here is log
** Attachment added: "journal.txt"
https://bugs.launchpad.net/ubuntu/+bug/2056197/+attachment/5753357/+files/journal.txt
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Next time a freeze happens, please:
1. Wait for it to unfreeze.
2. Run: journalctl -b0 > journal.txt
3. Attach the resulting text file here.
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Nothing in /var/crash.
Can't recall the problem occurring without Firefox opened, but the
problem doesn't arrive that often, and I kind of always have Firefox
opened.
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Does the problem occur if Firefox is never opened?
Do you find any files in /var/crash ?
** Package changed: xorg (Ubuntu) => ubuntu
** Changed in: ubuntu
Status: New => Incomplete
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