I-Firefox Isithangami Sokwesekwa

Yesterday I updated Firefox to version 82 and now it won't start up, it seems to immediately crash. There is no error report dialog box. This is on Windows 10 with the latest patches. I tried restarting the computer, installing Firefox 82 32-bit and 64-bit versions, uninstall + reinstall, and safe mode, but none of these work. (This is on a corporate laptop so I have a limited ability to change internal system settings.) The Windows error from the event log is:

Faulting application name: firefox.exe, version: 82.0.0.7592, time stamp: 0x5f8738dd Faulting module name: ntdll.dll, version: 10.0.17763.1432, time stamp: 0x80224f6f Exception code: 0xc0000409 Fault offset: 0x00000000000a4740 Faulting process id: 0x2998 Faulting application start time: 0x01d6a816d74b6186 Faulting application path: C:\Program Files (x86)\Mozilla Firefox\firefox.exe Faulting module path: C:\WINDOWS\SYSTEM32\ntdll.dll Report Id: 5ed88218-3f48-47be-8c6c-aa5af98c902b Faulting package full name: Faulting package-relative application ID:

I installed Firefox 81 and that works fine, but it constantly tries to updated and every time I restart it crashes again. It also seems like I can't access my saved logins/passwords in this older Firefox version because it's using a different profile. I'm trying to avoid updating Firefox on my other Windows 10 computer in case it fails in the same way.

Please let me know if you need any more information. Thank you.

We use Firefox as our company default and it has been running fine. This morning our devices started updating to version 82.0 and now it will not re-open. We get the following in event viewer:

Faulting application name: firefox.exe, version: 82.0.0.7592, time stamp: 0x5f8738dd Faulting module name: ntdll.dll, version: 10.0.18362.1049, time stamp: 0xb5beef21 Exception code: 0xc0000409 Fault offset: 0x00000000000a1170 Faulting process id: 0x504 Faulting application start time: 0x01d6a79d51cff95a Faulting application path: C:\Program Files\Mozilla Firefox\firefox.exe Faulting module path: C:\WINDOWS\SYSTEM32\ntdll.dll Report Id: a6b172b9-a2b5-4bc0-a874-22a48b48aa06 Faulting package full name: Faulting package-relative application ID:

When trying to uninstall from Program and Features we get the following NSIS error (attached).