The mozilla firefox stop working suddenly on Windows 10, i tried almost everything and i was not being able to fix it. What i did is : 1. Started firefox in safe mode 2. Uninstalled compeletely firefox and then tried to install it, on end of installation was getting the error the application was unable to start correctly (0xc000000d) 3. checked about:crashes is not possible because only allow you to write and nothing else happens if you press enter stays as it is Somehow firefox installed and i am only able to start it on compatible mode, how can i fix the problem and see what it happens? Running in compatible mode breaks the visual on full screen also.