User Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0 Build ID: 20150305021524 Steps to reproduce: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0 1) Set media.mediasource.enabled to true in about:config if in stable or use Firefox Beta or Nightly. 2) If not activated, activate HTML5 player in Youtube by going to https://www.youtube.com/html5. 3) Play any Youtube video with 1080p or 1080p60 quality or above. Actual results: Youtube stream plays fine for about four or five minutes, then video stream cuts out and I'm left only with audio. Reloading the page reloads the video stream; however, it, again, cuts out after about four or five minutes. Troubleshooting steps I've taken: -Switched to Firefox Beta (did not fix it even though HTML5 support is implemented) -Switched to latest Firefox Nightly (did not fix it even though HTML5 support is implemented) -Disabled hardware acceleration in stable (fixed it, but could not play videos in 60 fps or any videos in 1440p or 4k) -Disabled Ublock (did not fix it) -Disabled NoScript (did not fix it) -Tried Chrome (fixes it, as expected, but I don't want to use Chrome) UBlock and NoScript are the only blocker add-ons that I have installed by the way. Expected results: Youtube video should play normally at selected resolution.
4 years ago
Component: Untriaged → Video/Audio
Product: Firefox → Core
Fixed by enabling media.mediasource.webm.enabled in Firefox Beta. 4k video still does not work properly, but I can live with this for right now.
Status: UNCONFIRMED → RESOLVED
Last Resolved: 4 years ago
Resolution: --- → WORKSFORME
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