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How do I get Firefox to use an MP4 player other than Flash?


Need to update the application or extension that Firefox opens to read H.264 content from Livestream.

This happened

Not sure how often

== Livestream began broadcasting H.264 encoding ( MP4 ) and this is choppy in Flash

Additional System Details

Installed Plug-ins

  • -getplusplusadobe16287
  • Shockwave Flash 10.1 r53
  • ActiveTouch General Plugin Container Version 105
  • np-mswmp
  • ActiveTouch General Plugin Container Version 103
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Adobe PDF Plug-In For Firefox and Netscape "9.3.3"
  • Default Plug-in
  • 4.0.50524.0
  • Office Live Update v1.3
  • Windows Presentation Foundation (WPF) plug-in for Mozilla browsers
  • Next Generation Java Plug-in 1.6.0_20 for Mozilla browsers


  • User Agent: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv: Gecko/20100722 Firefox/3.6.8 (.NET CLR 3.5.30729)

More Information

Very choppy audio from Livestream sites with Flashplayer

TXGuy 87 solutions 861 answers

See long discussion here: https://support.mozilla.com/en-US/forum/1/562286?s=h.264&as=s