Firefox, Chrome, Safari have grey background for MP4 HTML5 video

Question

Any video (that I can make) with a white background becomes grey in Firefox, Chrome, and Safari (it is white in IE). Well, on my Windows machine it is grey, on my Android ph

Answer 1

Chrome will default to a different video encoding using an open source HTML5 video codec.
The other browsers such as FireFox, Safari and IE will default to using Flash.