Firefox on fedora

I don't know why but when I got home and tried using firefox on Gateway,fedora9 yesterday night.
Firefox couldn't open,tried many time like click the icon on desktop..but seems there is some problem and stuck somewhere...
Does anyone help me to fix? I just have to update something..though still stuck!

Very tired--heading for my friend's farewell party from now. Don't want to drink but want to just sleep =P