Firefox in this computer crashes even on the safe mode. All o ther programs working well; crash reports sent more than 3 times., NO crash ID provided
Firefox does not allow me to perform any action, not even to unistall the program.
Have you tried starting Firefox in Safe Mode? Hold down "shift" while Firefox is starting up. If the crash doesn't happen in Safe Mode, you should read Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems.
There is also a lot of useful stuff in the Firefox crashes - Troubleshoot, prevent and get help fixing crashes Knowledge Base article. If you've recently upgraded, you might want to check out this article as well.
Hopefully this helps!