I ask here for help.
A way to force Firefox to playback (as in the glorious pasttime) youtube, facebook, skylinewebcams videos via Flash Player (developed until 2020!) instead of the catastrophic html5. In the past month I was able to add an addon in FF and/or to change the MP4 keys in about:config of the browser, but since one month it is not possible.
And html5 is destroying my PC (capable to playback up to 4K 120Mbps in full screen mode with CPU 6% only).
Thanks a lot!
Edited by descantes, 16 August 2017 - 05:53 AM.