This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Firefox on Ubuntu won't play some sites' video - DRM-related?

  • 2 replies
  • 1 has this problem
  • 3 views
  • Last reply by tom.k.cook

tom.k.cook
tom.k.cook
more options

A few weeks back, videos on some sites stopped working. Facebook and Netflix are notable examples, though YouTube doesn't seem to be affected. I've tried netflix in private mode (ie with extensions disabled) and have the same problem.

I'm running:

  • Firefox 79.0
  • Ubuntu 20.04 LTS
  • OpenH264 Video Codec add-on version 1.8.1.1
  • Widevine CDM add-on version 4.10.1582.2
  • libavcodec-extra and libavcodec-extra58 Ubuntu packages version 7:4.2.4-1ubuntu0.1

All the plugins have automatic updates enabled and I've checked that the "Play DRM-controlled content" option in firefox preferences is enabled.

Have I missed something I should check? Are others having this problem?

A few weeks back, videos on some sites stopped working. Facebook and Netflix are notable examples, though YouTube doesn't seem to be affected. I've tried netflix in private mode (ie with extensions disabled) and have the same problem. I'm running: * Firefox 79.0 * Ubuntu 20.04 LTS * OpenH264 Video Codec add-on version 1.8.1.1 * Widevine CDM add-on version 4.10.1582.2 * libavcodec-extra and libavcodec-extra58 Ubuntu packages version 7:4.2.4-1ubuntu0.1 All the plugins have automatic updates enabled and I've checked that the "Play DRM-controlled content" option in firefox preferences is enabled. Have I missed something I should check? Are others having this problem?

All Replies (2)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Do you also have the latest FFmpeg packages ?

Did you check the Web Console for possible messages related to this issue ?

tom.k.cook
tom.k.cook Question owner
more options

I've installed the latest ffmpeg. The developer console doesn't show up anything very obvious, though on netflix it does show up several dozen messages of the form:

"unreachable code after return statement cadmium-playercore-6.0025.202.011.js:1:554690"

They are all on different column numbers. Chrome does not show the same messages. The errors are on code such as: 

         for (; h00 !== 1; ) {
           switch (h00) {
             case 2:
               return [p,
               c.Ta][b];
               break;
             case 4:
               return [p,
               c.Ta][b];
               break;
               h00 = 1;
               break;
           }
         }

To my jaundiced eye, that looks pretty broken, but without understanding more of this 130,000-odd line file, it's hard to say.