I again dear friend, Hi friends, sorry a little OT (my post can be moved to a more appropriate thread, if you want, thanks). A way to force Firefox to playback (as in the glorious past) youtube, facebook, skylinewebcams videos via Flash Player (developed until 2020!) instead of the catastrophic html5. In the past month I was able to add a Mozilla addon in FF and/or to change the MP4 keys in abo...