title: Label for File input in firefox
body: <p>When I add a label the a form input, I can normally click the label and it will refer me to the appropriate input (see below).</p>
  
  <pre><code>&lt;label for="input"&gt;Label&lt;/label&gt;&lt;input type="text" id="input"/&gt;
  </code></pre>
  
  <p>However, when I try to accomplish the same with a file input, the click on the label gets ignored. Is this a bug? A "feature"? And is there any way to still accomplish this?</p>
  
  <p>jsFiddle testcase: <a href="http://jsfiddle.net/bK6RZ/" rel="noreferrer">here</a></p>