The title basically sums it up. I can not download anything with firefox for mac. I already tried to go back to 3.6 but that doesn't help. Be it images or other files (even firefox itself) I am also not able to use the quick search bar in the top right. Type in is possible but it won't execute. Now the strangest part is that all this happens on my girlfriend's account. My own account works just fine. I already disabled all her extensions and skins etc.