With the new Lenovo Yoga Tablet 2 851, it comes with Windows 8.1 with Bing. Decided not to update to Windows 10 because I am more comfortable with Win 8.1

However I notice this strange problem with Youtube video. With Firefox the video playback will be jerky and not smooth, but with Internet Explorer it is smooth as it should be.

I tried to solve this problem by updating the Intel HD video driver to the latest version but the same problem.

After googling I found this working solution:

  1. Type: “about:config” on URL tab in  Firefox
  2. On search box, type “media.mediasource.webm.enabled”
  3. Double click o the entry to change the value to ‘true’

No need to restart Firefox and Windows, open a new Youtube video and the video played correctly, smooth and enjoy to watch 😉

Windows 8.1 Firefox Youtube Video Play Problem (Solved!!)

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