title: Input type="date" working in Chrome but not in Firefox
body: <p>I am not so into HTML and I have the following problem into this web page: <a href="http://www.saranistri.com/saranistriWPnew/richiesta-online-di-foto-storiche/" rel="nofollow">http://www.saranistri.com/saranistriWPnew/richiesta-online-di-foto-storiche/</a></p>
  
  <p>If you open it using <strong>Chrome</strong> you can see that there are 2 <strong>date</strong> fields in which you can choose the data with its correct format (there is shown also the up and down arrows to increare or decrease the data) but if you open this page using <strong>FireFox</strong> these field are not correctly displayed (the 2 arrows are not shown and the date format is not specified).</p>
  
  <p>Using <strong>FireBug</strong> I can see that these are implemented by this HTML section:</p>
  
  <pre><code>&lt;p&gt;
  Periodo
  &lt;br&gt;
  da
      &lt;span class="wpcf7-form-control-wrap date-from"&gt;
          &lt;input class="wpcf7-form-control wpcf7-date wpcf7-validates-as-date" type="date" value="" name="date-from"&gt;
      &lt;/span&gt;
  a
      &lt;span class="wpcf7-form-control-wrap date-to"&gt;
          &lt;input class="wpcf7-form-control wpcf7-date wpcf7-validates-as-date" type="date" value="" name="date-to"&gt;
      &lt;/span&gt;
  &lt;/p&gt;
  </code></pre>
  
  <p>As you can see it is specified the <strong>type="date"</strong>. Why Chrome show it correctly and Firefox not? I have the same problem also using Explorer.</p>
  
  <p>How can I fix this issue?</p>