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

Youtube videos not playing on firefox quantum on Ubuntu 18.04

  • 4 replies
  • 2 have this problem
  • 27 views
  • Last reply by James

more options

I am unable to play youtube videos on firefox Quantum, version 65.0(64 bit). I have a ubuntu 18.04 os. I tried disabling all add ons and starting firefox on safe mode, but none of that has worked.

I am getting the message: "your browser doesn't currently recognise any of the video formats available" Click here to visit our frequently asked questions about HTML5. Clicking on the link tells me that mozilla doesn't support H.264 and MSE&H.264.

All Replies (4)

more options

What is the link?

more options

astik159 said

I am unable to play youtube videos on firefox Quantum, version 65.0(64 bit). I have a ubuntu 18.04 os. I tried disabling all add ons and starting firefox on safe mode, but none of that has worked. I am getting the message: "your browser doesn't currently recognise any of the video formats available" Click here to visit our frequently asked questions about HTML5. Clicking on the link tells me that mozilla doesn't support H.264 and MSE&H.264.

You likely do not have the FFmpeg package installed that provides the codecs for HTML5 players to use in Firefox. This will cover the H.264 and MSE&H.264

With the various flavors of Ubuntu you may also find the FFmpeg in Ubuntu Restricted Extras for example. https://help.ubuntu.com/community/RestrictedFormats

A number of packages like FFmpeg may not be installed during the Linux OS install due to patent and copyright restrictions.

Modified by James

more options

WestEnd said

What is the link?

The OP was referring to https://www.youtube.com/html5/

more options

@astik159, no reply from you yet so is it fixed now or?