Hello everybody! Im trying to disable those F-keys for firefox but i am unable to find anything that helps, after weeks of searching.. I need to disable those keys because i am a clumsy typist, often hitting F12 instead of backspace, F5 as well as the number 6 and so on. Its VERY disruptive to have those keys enabled, i have often had to re-type a lengthy forum reply just because some dimwit programmer found it reasonable to pollute my user experience with a "reader mode" and link it to F9. I could possibly live with that F12 web console behaviour, since it doesnt really do anything but annoy me, i just close it again when i accidentally open it, but that damned F9 is seriously making me hysterical.. ..Just to clarify, if i press the F9 while typing a forum reply, the whole page gets reloaded in some autistic fashion that deletes everything ive typed.. And to further specify my request; i want ALL the F-buttons to be blocked/unusable by Firefox, but unaffected while in windows or other apps. If its not possible to block firefox from receiving the F-key-presses, is it possible to get the source for firefox and rebuild it without those features? ..I would rather just flip a settings switch to disable this F-key madness, but if i were to find a web browser that DIDNT use them, i would have uninstalled firefox for that reason alone..