Important Notice: We're experiencing email notification issues. If you've posted a question in the community forums recently, please check your profile manually for responses while we're working to fix this.

On Monday the 3rd of March, around 5pm UTC (9am PT) users may experience a brief period of downtime while one of our underlying services is under maintenance.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Why is FireFox 57 (and previous) on Linux (Fedora) unable to play videos from Pluralsight?

  • 3 replies
  • 23 have this problem
  • 13 views
  • Last reply by mauldin006

more options

On Fedora 27 (and earlier versions) I am unable to play videos from Pluralsight.com. I recently installed OpenH264 codec, but enabling it does not solve the issue.

On Fedora 27 (and earlier versions) I am unable to play videos from Pluralsight.com. I recently installed OpenH264 codec, but enabling it does not solve the issue.

Chosen solution

The Pluralsight uses a HTML5 video player. Not sure of exact packages for your Linux distro but make sure you have say FFmpeg installed and then you can check if you fully support HTML5 player at say https://www.youtube.com/html5/

The Cisco H264 Plugin has nothing to do with the HTML5 player or playing mp4 video. It is for Web RTC. https://blog.mozilla.org/blog/2013/10/30/video-interoperability-on-the-web-gets-a-boost-from-ciscos-h-264-codec/

Read this answer in context 👍 4

All Replies (3)

more options

Can you test using binaries from Mozilla. Check out, https://ftp.mozilla.org/pub/firefox/releases/57.0/linux-x86_64/

more options

Chosen Solution

The Pluralsight uses a HTML5 video player. Not sure of exact packages for your Linux distro but make sure you have say FFmpeg installed and then you can check if you fully support HTML5 player at say https://www.youtube.com/html5/

The Cisco H264 Plugin has nothing to do with the HTML5 player or playing mp4 video. It is for Web RTC. https://blog.mozilla.org/blog/2013/10/30/video-interoperability-on-the-web-gets-a-boost-from-ciscos-h-264-codec/

more options

Thank you very much, that did the trick. Don't know why I couldn't find that information on my own, but now I know.