Embedded mp4 videos not playing in Firefox on Linux
mp4 videos are not playing in Firefox under Linux for JW Player 6. Instead they show up as a black box with "Error loading player: no playable sources found". This behavior occurs in the latest version of Firefox without Flash installed. The videos play normally with a Webkit-based browser like GNOME Web or Chromium (not Google Chrome, so no Flash plugin, just HTML5). An example video would be any of the videos on http://video.pbs.org/feature/86/. Is the problem with JW Player or Firefox? If it is a Firefox problem, please give me some information and I can open a bug for Firefox.