title: What's the CSS Filter alternative for Firefox?
body: <p>I'm using CSS Filters to modify images on the fly within the browser. These work perfectly in Internet Explorer, but aren't supported in Firefox.</p>
  
  <p>Does anyone know what the CSS Filter equivalent for these is for Firefox? An answer that would work cross browser (Safari, WebKit, Firefox, etc.) would be preferred.</p>
  
  <pre><code>&lt;style type="text/css"&gt;
      .CSSClassName {filter:Invert;}
      .CSSClassName {filter:Xray;}
      .CSSClassName {filter:Gray;}
      .CSSClassName {filter:FlipV;}
  &lt;/style&gt;
  </code></pre>
  
  <p>Update: I know Filter is an IE specific feature. Is there any kind of equivalent for any of these that is supported by Firefox?</p>