title: Why does Firefox sometimes cache my CSS & Javascript code, even though it has changed?
body: <p>On my product site, Firefox sometimes "doesnt detect" changes in my CSS &amp; Javascript code. Rather it loads the old versions, so it seems that I need to clear the cache. In a situation like this, what should I do? This relates to the latest Firefox (16.0.1 at the time of this writing.)</p>
  
  <p>EDIT!</p>
  
  <p>I forgot to say it mistakes for the localhost css files. I meant, theres an old js file, I update it, upload it, and on product server firefox thinks its the localhost file.
  The way I include files:</p>
  
  <pre><code>&lt;link rel="stylesheet" href="/xyz.css" type="text/css" /&gt;
  </code></pre>