title: WEBGL_draw_buffers not supported on latest Firefox / Chrome
body: <p>A google search would show all sorts of people using multiple render targets (aka MRT) with the WEBGL_draw_buffers extension.
  The search would also show that both Firefox and Chrome are supposedly supporting it, and that one might have to enable a flag in about:config / about:flags respectively that would allow the usage of extensions that are still in draft status.</p>
  
  <p>However, none of the above gave me access to the extension. I changed the configuration on both Firefox Aurora and Chrome Canary, and no luck.</p>
  
  <p>Is there any solution?</p>