Alternatives in latest FF versions

[benintech]

Thanks for the code. noctrlq_xvkbd.sh works in Debian 11, but I had to remove the -xsendevent flag, didn't work with it.
There's a small delay before a window is closed, though (less than a second, but still noticeable)

FYI there are now solutions to disable shortcuts directly in FF, see https://support.mozilla.org/en-US/questions/1384971