How to enable Webgl feature on Firefox release version (not beta)?

Question

On my Facebook timeline, someone posted an interesting link to see weapon market in all over the world.

But it is designed on Webgl. Chrome supports it "natively", but Firefox not.

I heard (by Google) that you can activate Webgl on Firefox beta, but that info is perhaps outdated (2010)...

Can I activate Webgl on Firefox release version, at least with some add-on? How?

Answer 1

Ok, in Firefox 22 is is fixed.

Actually, I saw it in http://en.wikipedia.org/wiki/WebGL:

Mozilla Firefox – WebGL has been enabled on all platforms that have a capable graphics card with updated drivers since version 4.0.[11] Mozilla Firefox 8.0 and newer versions use Cross-origin resource sharing (CORS) to control all WebGL cross-domain textures.[12][13]