You need WebCL + WebGL

Unfortunately, you don't have either of WebCL or WebGL installed. To install on Ubuntu, follow the steps below. Should be similar on other systems.

  1. Install Firefox 6 from
  2. Go to and install the WebCL plugin
  3. Install the library libosmesa6 via synaptic or run sudo apt-get install libosmesa6
  4. Start firefox and go to about:config.
  5. Set webgl.force-enabled=true, webgl.osmesalib=/usr/lib/ and webgl.codefer-native-gl=true
  6. Restart firefox
  7. Go to again and run steps 3-5 to see if everything works.