It would be nice if all keyboard shortcuts could be customized.
In my case, I’d specifically like to be able to make the “Esc” key do nothing (currently it goes to the dashboard). I have a cat who likes to sleep with her head on the corner of my keyboard and so she periodically pushes the Esc key while I’m trying to read. She sometimes hits F1, too, but at least I can just control-F4 out of Chrome’s help page to get back from that.