Recently I downloaded Firefox because Safari won't open some stuff for school that I need. FireFox is great, its just that now it won't work at all. I had it for about a week, then I turned my iMac on and clicked on it, but nothing, there's just a huge question mark over it. So it just sits there with a question mark over the firefox logo in my dock. Right clicking, or opening at login does not work. I appreciate the help guys!