Disable Youtube™ HTML5 Player by Firefox user 12460983

4.2 Stars out of 5

4 reviews

Rated 1 out of 5
by Firefox user 13842562, 4 years ago
it's completely useless, the videos runs automatically
Rated 1 out of 5
by Razka, 5 years ago
Rated 1 out of 5
by Juáhsz László, 7 years ago
doesnt work , dont play any video
Rated 1 out of 5
by bronson.deliac, 8 years ago
as title says, add-on does not work; html5 player still plays