I would like to permanently disable that key. (There is another Ins key on the numeric keypad, should I ever want that function.)
Ideally, the key need only be disabled when I'm in Firefox, but that is probably difficult to arrange, and I don't use the key much at other times, anyway. So a permanent solution is okay.
So, how to neuter the pesky Insert key
![Question :?:](./images/smilies/icon_question.gif)