[Coda]

That's not really very helpful. And I can't say I know why, because Comodo's browser is based on Chromium, and it works fine there.

I suppose if Comodo changes how keyboard focus is managed for some reason it might cause the controls to appear not to work. Try clicking on the game in the window. (Once I add a title screen, you'll need to click to start anyway, which will hide this problem.)