title: How to disable media queries support in firefox?
body: <p>I have a mobile website that is styled with extensive use of CSS3 Media Queries.</p>
  
  <p>I want to do a version for browsers that don't support Media Queries by adding an extra css file for them, that overwrites some of the css rules. </p>
  
  <p>I was wondering if there is <strong>a way to disable Media Queries support in Firefox (21.0)</strong> to be able to develop, since I don't have anything else to test with.</p>
  
  <p>A Chrome solution would also work out, although I prefer using firebug.</p>