title: Youtube Flash API (AS3) not working in Firefox but in Chrome
body: <p>I'm wondering why since very recently my own programmed flash-video-player (using the YouTube ActionScript 3.0 Player API) is not working anymore in Firefox (Win, 45.0.1) but it's working still fine in Chrome (Win, 49.0.2623.110 m). </p>
  
  <p>The graphic elements of the video-player load fine in both, so the flash-plugin is working, but only Chrome shows the actual youtube-video.</p>
  
  <p>I know the flash API is deprecated (<a href="https://developers.google.com/youtube/flash_api_reference" rel="nofollow">https://developers.google.com/youtube/flash_api_reference</a>), but why is it still working in Chrome then? Any ideas of how I can get it to run in firefox again?</p>
  
  <p>PS: Because of the complexity of the video-player and its function I cannot switch to the html5 version of the youtube-player-api.</p>
  
  <p><strong>UPDATE:</strong></p>
  
  <pre><code>&lt;object width="640" height="360" id="video" data="video.swf" type="application/x-shockwave-flash"&gt;
              &lt;param value="video.swf" name="movie"&gt;
              &lt;param value="xml=xml?i=48-96-43" name="FlashVars"&gt;
              &lt;param value="high" name="quality"&gt;
              &lt;param value="#181818" name="bgcolor"&gt;
              &lt;param value="true" name="play"&gt;
              &lt;param value="true" name="loop"&gt;
              &lt;param value="window" name="wmode"&gt;
              &lt;param value="showall" name="scale"&gt;
              &lt;param value="true" name="menu"&gt;
              &lt;param value="false" name="devicefont"&gt;
              &lt;param value="" name="salign"&gt;
              &lt;param value="sameDomain" name="allowScriptAccess"&gt;
              &lt;a href="http://www.adobe.com/go/getflash"&gt;
                  &lt;img alt="Get Adobe Flash player" src="http://www.adobe.com/images/shared/download_buttons/get_flash_player.gif"&gt;
              &lt;/a&gt;
          &lt;/object&gt;
  </code></pre>