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error playing some videos "no video with supported mime type found"

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after upgrading to version 35 i get error playing some videos "no video with supported mime type found" video type mp4

after upgrading to version 35 i get error playing some videos "no video with supported mime type found" video type mp4

Additional System Details

Installed Plug-ins

  • Adobe PDF Plug-In For Firefox and Netscape 11.0.07
  • Google Update
  • Office Authorization plug-in for NPAPI browsers
  • The plug-in allows you to open and edit files using Microsoft Office applications
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Shockwave Flash 16.0 r0
  • VLC media player Web Plugin 2.1.3
  • iTunes Detector Plug-in

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:35.0) Gecko/20100101 Firefox/35.0

More Information

guigs 1072 solutions 11697 answers

Helpful Reply

Do you have OpenH264 Video Codec provided by Cisco Systems, Inc. installed in about:plugins ?

To reset the mimetypes you can try to change the mimetype that cannot be found with these instructions:

Do you have OpenH264 Video Codec provided by Cisco Systems, Inc. installed in about:plugins ? To reset the mimetypes you can try to change the mimetype that cannot be found with these instructions: * [[Applications panel - Set how Firefox handles different types of files]]

Modified by guigs

cor-el
  • Top 10 Contributor
  • Moderator
17473 solutions 157934 answers

This means that the HTML5 media player is used, but your computer doesn't have support for the various media files that are available. This may be a missing codec or basic MP4 support.

You can open the Web Console (Firefox/Tools > Web Developer) for error messages.


See also Windows Media Feature Pack for N and KN versions of all Windows 8 editions in case you use such a Windows version:

This means that the HTML5 media player is used, but your computer doesn't have support for the various media files that are available. This may be a missing codec or basic MP4 support. You can open the Web Console (Firefox/Tools > Web Developer) for error messages. *https://developer.mozilla.org/Tools/Web_Console ---- See also Windows Media Feature Pack for N and KN versions of all Windows 8 editions in case you use such a Windows version: *http://support.microsoft.com/kb/2703761