Youtube Videos do NOT play if media.mediasource.enabled is set true (Youtube with HTML 5 Player). WHY?
I am Using the new HTML 5 Player when watching Videos on Youtube. It works just fine when media.mediasource.enabled is set to "false" but then I cannot get the full experience because the lack of features!
If I enable it, NO Video is going to load, meaning I cannot watch any Video on Youtube! As a workaround I installed the Plugin "Youtube Control Center" (missing in your List below). But it would be nice if I would NOT have to use this...
Even better would be if Firefox would Support WebM. But this does not seem to be the case since YT uses exactly this Format with its new Player... (And if I enable this media.mediasource.enabled (set it "true") NOTHING works anymore.)
פתרון נבחר
Firefox plays the "old" WebM format in its default configuration (media.mediasource.enabled=false). You can verify that here: http://www.webmfiles.org/demo-files/.
From what I have read, turning on MediaSource will allow you to play the "new" WebM on YouTube starting in Firefox 31. Even though the preference exists in Firefox 30, I don't think the actual code is there, which would explain why advertising that capability to YouTube causes total failure.
See: http://www.ghacks.net/2014/05/10/enable-media-source-extensions-firefox/
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פתרון נבחר
Firefox plays the "old" WebM format in its default configuration (media.mediasource.enabled=false). You can verify that here: http://www.webmfiles.org/demo-files/.
From what I have read, turning on MediaSource will allow you to play the "new" WebM on YouTube starting in Firefox 31. Even though the preference exists in Firefox 30, I don't think the actual code is there, which would explain why advertising that capability to YouTube causes total failure.
See: http://www.ghacks.net/2014/05/10/enable-media-source-extensions-firefox/
THANKS for the Answer! I just downloaded Aurora (Firefox Version 32) and it works just fine!