Screen is gray?

I searched for this but couldn’t find it. I’m in firefox right and everything in the window is gray-scale (black and white). My desktop is in color and so is the taskbar.

I’m guessing that I’m in some kind of mode and don’t know how to get out of it. Anybody know what I’ve done?

I don’t know why it stayed gray, but when an app is “thinking” pretty heavily with compiz, that app will gray out for a while. It will come back to normal after a minute though.

I’d just restart Xorg by holding Ctrl-Alt-Bksp

Thanks, that worked. Is there anyway to turn it off from doing that?