YouTube HTML5-ifier is a Chrome extension, it has a unique ability to change the flash-based video player into HTML5 video tag. But this extension only supports Youtube’s videos.
Actually, what happens after you install Youtube HTML5-ifier ? Youtube video player will turn into HTML5 video player that is lighter and uses less CPU resources. Not all videos can be played by YouTube HTML5-ifier, because this extension is still in the process of development.
See the difference :
Before
After
