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Firefox 54.0 no longer plays videos in Twitter

  • 2 replies
  • 3 have this problem
  • 1 view
  • Last reply by cor-el

gluisier
gluisier
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Firefox 54.0 will no longer play videos in Twitter. The video tries to start but eventually displays "The media cannot be played". I only have two addons: OpenH264 Video Codec (always activate) and Shockwave Flash 26.9r (always activate). This is a 64bit microsoft windows 7 operating system running Firefox 32 bit 54.0. Microsoft has all current updates installed.

Firefox 54.0 will no longer play videos in Twitter. The video tries to start but eventually displays "The media cannot be played". I only have two addons: OpenH264 Video Codec (always activate) and Shockwave Flash 26.9r (always activate). This is a 64bit microsoft windows 7 operating system running Firefox 32 bit 54.0. Microsoft has all current updates installed.

All Replies (2)

jscher2000 - Support Volunteer
jscher2000 - Support Volunteer
  • Top 10 Contributor
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Is your Firefox generally able to play H.264-coded / MPEG 4 video? One diagnostic is YouTube's test page here:

https://www.youtube.com/html5

Another is the video players down this page (ignore the Firefox 4 beta info at the top):

https://www.quirksmode.org/html5/tests/video.html

Regarding add-ons, since you shared your extensions list, I see you have Adblock Plus. Sometimes that is a factor if there are "pre-roll" ads in the video player.

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
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Are there any more detailed messages in the Web Console?