title: Firebug console error HTTP 407 Proxy Authentication Required
body: <p>I am behind a proxy at work (using NTLM authentication). Whenever I load up a page, my Firebug console gets flooded with messages like this:</p>
  
  <pre><code>"NetworkError: 407 Proxy Authentication Required - http://somewebsite/Scripts/jquery-1.8.2.min.js"
  </code></pre>
  
  <p>It does that for all URLs referenced on that page: JS, CSS, Image, whatnot.</p>
  
  <p>The annoying thing is that the file is actually successfully loaded. It seems that Firefox hits the 407 Error, spams the log and then loads it anyway with the NTLM credentials.</p>
  
  <p>Is there any way I can stop these useless errors from showing up, so they don't drown out the console messages I'm actually interested in?</p>