New graphics engine imperils users of Firefox and Chrome • The Register
Original article:
http://www.contextis.com/resources/blog/webgl/
Here is the workaround to disable WebGL.
In Firefox 4, type “about:config” (minus the quotes) into the address bar and set webgl.disabled to true.
In Chrome, get to the command line of your operating system and add the --disable-webgl flag to the Chrome command. On a Windows machine, the command line would be "chrome.exe --disable-webgl"
Jim