Hello,

Please check about:crashes for unsubmitted or submitted recent crash reports, and respond with the crash links so that we can see what the cause is.

https://crash-stats.mozilla.org/report/index/70219d6b-622e-49bf-aa15-756060211021

Do you have any more recent crash reports?

Product Firefox Release Channel release Version 93.0

Thu, 21 Oct 2021 19:01:44 GMT bp-70219d6b-622e-49bf-aa15-756060211021 Signature: OOM | small

Basically, an OOM (Out Of Memory) means the system is having issues with the RAM.

https://support.mozilla.org/en-US/kb/firefox-slow-how-make-it-faster

https://support.mozilla.org/en-US/kb/firefox-uses-too-many-cpu-resources-how-fix

https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-ram

https://support.mozilla.org/en-US/kb/firefox-hangs-or-not-responding

https://support.mozilla.org/en-US/kb/firefox-takes-long-time-start-up

https://support.mozilla.org/en-US/kb/quick-fixes-if-your-firefox-slows-down

https://support.mozilla.org/en-US/kb/firefox-uses-too-much-memory-or-cpu-resources

MemTest LAST UPDATED : 12/04/2020 Could you please run a tool from http://memtest.org/ in order to check the integrity of your RAM?

You will need a thumb or disk drive to install it on.