I searched a bit and found no way to disable that HTML5
and i opened your PND with the PNDTools to see whats inside
(just wanted to see,nothing changed,because i searched the older Flashplugin to disable/delete)
But unfortunaly i found out that the old
libswfdecmozilla.
so (from 2010)from the Firmware can cause Probems
thats the Reason why i deleted that File from the Pandora OS
/usr/lib/mozilla/plugins/
libswfdecmozilla.
so
and the Plugin Problem is solved,because that older Plugin is gone and only
the Flash Player 11 is used now.
I hope i break no important Things with it
Now i search more to disable that HTML5 ^_^
Edit:
Aaaand when you disable the Hardware Acceleration in the Flash Player,will it work better .
Edit Edit:
Found an easy Way to disable this HTML5 in Youtube:
-go to about:config
-search webm
-disable webm
Now you can choose 240p and 144P again when you want.
after a Palemoon restart will youtube now use the Flashplugin:
(short test Video,i dont see this Series
)
https://www.youtube.com/embed/iXd9NyH2q3Q?feature=oembed