[clug] Remapping keys in mozilla firefox

[Michael Cohen]

Hi List,
  This might be a dumb question but how can one remap the keyboard
  shortcuts in mozilla firefox? Being a long time emacs user I am used
  to pressing alt-w to copy, which produces rather frustrating results
  when filling in web forms etc. Alternatively is there a way to stop
  tabs from closing when forms are half filled?

Thanks,
  Michael.