WebGL exploit/attack in Firefox & Opera? (other browsers may be at risk also)

I recently read this article about a new exploit/attack using WebGL in Firefox, Opera, and other browsers, and the article recommends disabling WebGL in the browser. However, after looking through the settings for both Firefox and Opera, I can find no reference to WebGL.... any info? anyone?

 

Fx v4 on a Mac.
about:config
Here's my screenie. Click to set to true.
Cheers..

 

webgl. toggled to *true* in Firefox 4 and Palemoon browsers. Thanks dlb.

 

@ oma: I'm running Palemoon4 on Win7 X64 Home premium, where in the PM settings is the WebGL setting? It looks like I have to manually edit a config file or an .ini file somewhere.... which file?

 

Type: about:config in address bar

Toggle webgl.disabled to true

 

Resurrecting this thread because Fx fixed the exploit in Fx 5. Believe to have read somewhere that Chrome has not fixed the problem yet.