title: Firefox white box while playing embedded WMV file
body: <p>WMV files are not playing in mozilla browser <strong>(version : 17.0.1)</strong> for the first time while loading browser, instead it show a white box. When I switch between tabs or open applications and come back, it works (video starts playing). I have googled a lot regarding this issue but could not find any solution.</p>
  
  <p>I have no idea as what is preventing me from doing this either a browser setting or code problem.</p>
  
  <p>There is no problem while playing the same file in other browsers.</p>
  
  <p>Please help me in this regard.</p>
  
  <p>Thanks in advance.</p>