In the address bar, type '''about:crashes'''<enter>&#46; '''Note: ''' If any reports do not have '''BP-''' in front of the numbers/letters, click it to submit them&#46; '''The crash report is several pages of data&#46; We ''' '''need the report numbers to see the whole report&#46; ''' Using your mouse, '''mark''' the '''most recent 7 - 10''' '''Submitted''' crash reports, and copy them&#46; Now go to the reply box and paste them in&#46; Please, '''Do not post a screenshot ! ! ''' ;[[Image:aboutcrashesFx57|width=500]] For more help on crash reports, see; https://support&#46;mozilla&#46;org/en-US/kb/firefox-crashes-asking-support

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 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. Do you let Windows handle the page file or did you set a fixed size ? If you use a fixed size for the page file then try the former and let Windows handle the page file. [https://docs.microsoft.com/en-us/windows/client-management/determine-appropriate-page-file-size#:~:text=Support%20for%20system%20crash%20dumps%20%20%20,on%20kernel%20virtual%20memory%20usage.%20%20...%20 How to determine the appropriate page file size for 64-bit versions of Windows] {web link}