Disable Youtube™ HTML5 Player
Disable YouTube HTML5 player
Force Flash on YouTube (not html5)
doesn't work?
please reload page
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"Access your data on all websites" added permission?
for embedded youtube videos.
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program source
Only this
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if(location.hostname.match(/^www.youtube.com/i)) {
var script = document.createElement("script");
script.type = "text/javascript";
script.textContent = 'document.createElement("video").constructor.prototype.canPlayType = function(type){return ""}';
document.documentElement.appendChild(script);
}
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