title: Partially block embedded JavaScript in Firefox
body: <p>Is there a Firefox extension capable of blocking a single function from embedded javascript in a page?</p>
  
  <pre><code>&lt;html&gt;
      &lt;head&gt;
          &lt;script type='text/javascript'&gt;
              function onLoad(){
                  setTimeout(annoying, 1800000);
              }    
  
              function annoying(){
                  //do something annoying
              }
  
  
              function useful(){
                  //do something useful
              }
          &lt;/script&gt;
      &lt;/HEAD&gt;
      &lt;BODY  onload="onLoad()"&gt;
          &lt;!--rest of page goes here--&gt;
      &lt;/BODY&gt;
  &lt;/HTML&gt;
  </code></pre>