HELP!

[Rengori]

Firefox is being stupid and every time I try to go to user CP, a popup says "What do you want to do with usercp.php?" So I say "Open with firefox.exe" and tell it to open this kinda file like this every time. Stupid mistake, now a million tabs come up when I try to open it because it failed to open it the first time and subsequent times.

LONG STORY SHORT

I can't get to my User CP with Firefox.

EDIT: I just found out the home page of EoFF doesn't work either.