<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>

There are no equivalents in other browsers. The closest you could get is using a graphics library like Canvas and manipulating the images in it, but you'd have to write the manipulations yourself and they'd require JavaScript.
```
filter
```
is an IE-only feature -- it is not available in any other browser.