Well, everything was hunky dory for a while, but now, firefox won't start because it says another instance of it has to close first, but there is no other instance.

On top of that, I can't run it in safe mode because I get the same error.

On top of THAT I can't uninstal it, when I try to uninstall, nothing happens at all, after clicking on uninstal.

What can I do?