title: video in html5 - movie not found in firefox
body: <p>I have a following code, which should show a video from file <strong>139multiclub_mix.mp4</strong>. This file is in the same folder as file with html code. In browser Chrome all works fine. But in Firefox i see a default movie (from <a href="http://video-js.zencoder.com/oceans-clip.ogv" rel="nofollow">http://video-js.zencoder.com/oceans-clip.ogv</a>) but my movie isn't shown. What i'm doing wrong?</p>
  
  <p>My code:</p>
  
  <pre><code>&lt;video id="sampleMovie" width="274" height="206" controls="controls" autoplay="autoplay" loop="loop" muted="" preload="auto"&gt;
  &lt;source src="139multiclub_mix.mp4" type="video/mp4; codecs=&amp;quot;avc1.42E01E, mp4a.40.2&amp;quot;" /&gt;
  &lt;source src="http://video-js.zencoder.com/oceans-clip.ogv" type="video/ogg; codecs=&amp;quot;theora, vorbis&amp;quot;" /&gt;
  &lt;source src="http://video-js.zencoder.com/oceans-clip.webm" type="video/webm; codecs=&amp;quot;vp8, vorbis&amp;quot;" /&gt;
  &lt;object id="sampleMovie" width="274" height="206" data="../../../../plugins/forms/tiny_mce/plugins/media/moxieplayer.swf" type="application/x-shockwave-flash"&gt;
  &lt;param name="src" value="../../../../plugins/forms/tiny_mce/plugins/media/moxieplayer.swf" /&gt;
  &lt;param name="flashvars" value="url=139multiclub_mix.mp4&amp;amp;poster=/admin/box/edit-box/id/" /&gt;
  &lt;param name="allowfullscreen" value="true" /&gt;&lt;param name="allowscriptaccess" value="true" /&gt;&lt;/object&gt; &lt;/video&gt;
  </code></pre>