How Do I Close/stop Firefox From Running.?

:unsure: Can any one tell me how to Close/Stop Mozella/Fiefox from running.?

what exactly do u mean?to stop firefox from running as a start up program?to stop firefox running as ur default browser?

what exactly do u mean?to stop firefox from running as a start up program?to stop firefox running as ur default browser?

I mean as a default brower

I FOUND OUT HOW TO CLOSE IT. THANKS