I sneezed and hit a wrong button. One website now only has a half screen with the bottom being grey. It only happens on this one site, all others are fine. What did I do and how do I fix it.
clear browsing history and cahce and try once more or else reset firefox
Press the shift key as you click the reload button. This should fetch a new copy of everything.
Clear your cache and then test it.
This. Do this. I wonder what button you pressed, though...not sure what could cause something like this.
try to reset firefox