JavaScript WebM encoder by @antimatter15 - antimatter15.com/wp/2012/08/… (Chrome only. Firefox: Why no WebP support?!)

@mrdoob I suspect #WebP is a very low priority for @Mozilla -- it's not widely used and there are lots of other battles to fight.

@stshank @mrdoob Pretty sure it's actually an anti-priority, as format proliferation without great benefits is a negative for the web.