I'm back to a 13" MBP after nearly a year with a 13" Air. I have a thing for the Pro I guess

So to compensate for the miss pixels from 1440x900 to 1280x800, I just started using Safari in full screen mode. I like a lot! With the gesture control to switch to different desktops or even another full screen Safari session, it's actually better than opening a new tab!

BUT, with one of the webmail I use, I have to press ESC to close a message, and doing that also kicks me out of full screen mode, requiring another ^-command-F to get back in full screen. Is there any way to disable the ESC key from exiting full screen in Safari?