WebGL, and more generally, browser as 3d engine, fucking rules. It's going to replace your desktop, your OS, your HTML and all that other garbage you've been working with for the last 20 years. Mark my words.
As all modern browsers support WebGL (now also IE with v11 and iOS with v8), the stats show which browser version on which platform supports which WebGL features/extensions.
(I am not related to that website. Afaik Google used to contribute too.)