title: How do I make Firefox auto-refresh on file change?
body: <p>Does anyone know of an extension for Firefox, or a script or some other mechanism, that can monitor one or more local files. Firefox would auto-refresh or otherwise update its canvas when it detected a change (of timestamp) in the files(s).</p>
  
  <p>For editing CSS, it would be ideal if just the CSS could be reloaded, rather than a full HTML re-render.</p>
  
  <p>Effectively it would enable similar behaviour to Firebug with its dynamic HTML/CSS editing, only through external files.</p>