How to play MPEG-4 videos on Firefox on Ubuntu 18.10?











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After recently upgrading to Ubuntu 18.10, Firefox isn't playing any embedded MPEG-4 video, there was no issue before the upgrade



e.g. https://twitter.com/Twitter/status/1065406263612399617



The console in dev tools reports this



The video on this page can’t be played. Your system may not have the required video codecs for: video/mp4; codecs="avc1.42E01E mp4a.40.2", video/quicktime; codecs="avc1.42E01E mp4a.40.2", video/x-m4v; codecs="avc1.42E01E mp4a.40.2" 1 1066421472464392192
HTTP “Content-Type” of “video/mp4” is not supported. Load of media resource https://video.twimg.com/tweet_video/DskVIELXgAEDAmP.mp4 failed. 1 twitter



YouTube videos play successfully, and the same link works in Chrome on the same machine. Unfortunately, I'm using 56.0.2 and, due to work restrictions, cannot upgrade to the latest release



Flashplugin-installer and ffmpeg are installed and the latest version



The "Play DRM-controlled content" option is selected










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  • 1




    Plays on my system in FF (also using 18.10). "flashplugin-installer and ffmpeg " eh what do they have to do with playing mp4s in firefox? I would add gstreamer codecs for mpeg if I was you.
    – Rinzwind
    Nov 24 at 23:12















up vote
0
down vote

favorite












After recently upgrading to Ubuntu 18.10, Firefox isn't playing any embedded MPEG-4 video, there was no issue before the upgrade



e.g. https://twitter.com/Twitter/status/1065406263612399617



The console in dev tools reports this



The video on this page can’t be played. Your system may not have the required video codecs for: video/mp4; codecs="avc1.42E01E mp4a.40.2", video/quicktime; codecs="avc1.42E01E mp4a.40.2", video/x-m4v; codecs="avc1.42E01E mp4a.40.2" 1 1066421472464392192
HTTP “Content-Type” of “video/mp4” is not supported. Load of media resource https://video.twimg.com/tweet_video/DskVIELXgAEDAmP.mp4 failed. 1 twitter



YouTube videos play successfully, and the same link works in Chrome on the same machine. Unfortunately, I'm using 56.0.2 and, due to work restrictions, cannot upgrade to the latest release



Flashplugin-installer and ffmpeg are installed and the latest version



The "Play DRM-controlled content" option is selected










share|improve this question




















  • 1




    Plays on my system in FF (also using 18.10). "flashplugin-installer and ffmpeg " eh what do they have to do with playing mp4s in firefox? I would add gstreamer codecs for mpeg if I was you.
    – Rinzwind
    Nov 24 at 23:12













up vote
0
down vote

favorite









up vote
0
down vote

favorite











After recently upgrading to Ubuntu 18.10, Firefox isn't playing any embedded MPEG-4 video, there was no issue before the upgrade



e.g. https://twitter.com/Twitter/status/1065406263612399617



The console in dev tools reports this



The video on this page can’t be played. Your system may not have the required video codecs for: video/mp4; codecs="avc1.42E01E mp4a.40.2", video/quicktime; codecs="avc1.42E01E mp4a.40.2", video/x-m4v; codecs="avc1.42E01E mp4a.40.2" 1 1066421472464392192
HTTP “Content-Type” of “video/mp4” is not supported. Load of media resource https://video.twimg.com/tweet_video/DskVIELXgAEDAmP.mp4 failed. 1 twitter



YouTube videos play successfully, and the same link works in Chrome on the same machine. Unfortunately, I'm using 56.0.2 and, due to work restrictions, cannot upgrade to the latest release



Flashplugin-installer and ffmpeg are installed and the latest version



The "Play DRM-controlled content" option is selected










share|improve this question















After recently upgrading to Ubuntu 18.10, Firefox isn't playing any embedded MPEG-4 video, there was no issue before the upgrade



e.g. https://twitter.com/Twitter/status/1065406263612399617



The console in dev tools reports this



The video on this page can’t be played. Your system may not have the required video codecs for: video/mp4; codecs="avc1.42E01E mp4a.40.2", video/quicktime; codecs="avc1.42E01E mp4a.40.2", video/x-m4v; codecs="avc1.42E01E mp4a.40.2" 1 1066421472464392192
HTTP “Content-Type” of “video/mp4” is not supported. Load of media resource https://video.twimg.com/tweet_video/DskVIELXgAEDAmP.mp4 failed. 1 twitter



YouTube videos play successfully, and the same link works in Chrome on the same machine. Unfortunately, I'm using 56.0.2 and, due to work restrictions, cannot upgrade to the latest release



Flashplugin-installer and ffmpeg are installed and the latest version



The "Play DRM-controlled content" option is selected







firefox 18.10






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edited Nov 24 at 20:49

























asked Nov 24 at 20:37









Joseph McCarthy

112




112








  • 1




    Plays on my system in FF (also using 18.10). "flashplugin-installer and ffmpeg " eh what do they have to do with playing mp4s in firefox? I would add gstreamer codecs for mpeg if I was you.
    – Rinzwind
    Nov 24 at 23:12














  • 1




    Plays on my system in FF (also using 18.10). "flashplugin-installer and ffmpeg " eh what do they have to do with playing mp4s in firefox? I would add gstreamer codecs for mpeg if I was you.
    – Rinzwind
    Nov 24 at 23:12








1




1




Plays on my system in FF (also using 18.10). "flashplugin-installer and ffmpeg " eh what do they have to do with playing mp4s in firefox? I would add gstreamer codecs for mpeg if I was you.
– Rinzwind
Nov 24 at 23:12




Plays on my system in FF (also using 18.10). "flashplugin-installer and ffmpeg " eh what do they have to do with playing mp4s in firefox? I would add gstreamer codecs for mpeg if I was you.
– Rinzwind
Nov 24 at 23:12















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