I was on a streaming site and fumbled some keystroke that popped up a menu where one option was "disable keyboard shortcuts". I accidentally clicked on it and now the arrow keys don't scroll, space doesn't pause, etc. I can't figure out where that menu is to restore functionality to the keyboard, even after a browser restart.

As far as I can tell, this is site specific, as the keyboard works for youtube and other streaming sites. Any ideas? If it helps, the site I was on is fmoviesz dot to