bp-de3b56af-3538-4d8c-b640-645aa0210925 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. Do you let Windows handle the page file or did you set a fixed size ? Control Panel -> System -> Advanced -> Performance -> Settings 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}

TotalPageFile : 4290932736
TotalPhysicalMemory : 4290932736
Available Page File : 10,813,440 bytes (10.81 MB)
Available Physical Memory : 1,206,386,688 bytes (1.21 GB)

How much physical memory do you have installed on your computer because the crash report shows about 4GB, so maybe consider to install more memory ? TotalPageFile : 4290932736 TotalPhysicalMemory : 4290932736 Available Page File : 10,813,440 bytes (10.81 MB) Available Physical Memory : 1,206,386,688 bytes (1.21 GB)