The cause-and-effect given here is exactly backwards. HTML5 does not mandate any format because the war is underway. The editor, Ian Hickson, is not willing to add anything to the standard if a major ...
The other side of the medal is that a competitor of Youtube who supports formats supported by Firefox can increase their market share at the cost of Youtube.
Some results have been hidden because they may be inaccessible to you
Show inaccessible results