1. I use Windows 10 Home Version 1803 and Firefox 69.0 (32 bit)
2. Suddenly I observed that Google Maps opened on browser is always showing a blank screen
3. On Windows Notification Area – it says Application Firefox.exe has been blocked from accessing Graphics Hardware
4. I tried to change Firefox Options like [Performance] etc. But nothing worked
5. Then, I opened CMD with Administrator rights and,
6. Executed 3 Commands like:
- sfc /scannow
- DISM.exe /Online /Cleanup-image /Scanhealth
- DISM.exe /Online /Cleanup-image /Restorehealth
7. Then rebooted the PC
8. Everything is fine now
Asoke Mukherjee's Blog 