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.

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

Natao arisiva ity resaka mitohy ity. Mametraha fanontaniana azafady raha mila fanampiana.

Firefox YouTube html5 audio stops working at random points in most videos

  • 2 valiny
  • 1 manana an'ity olana ity
  • 6 views
  • Valiny farany nomen'i bladestorm91

more options

Lets say I'm watching a 5:20 long YouTube video and then suddenly at 2:20 the audio stops working, but the video works just fine. I try reloading the page, but the audio always stops working at that time. If I skip that 2:20 point the audio works just fine if there isn't another point in the video when it stops working. Most other YouTube videos have different points when the audio stops working, e.g. 4:50, 3:11, 6:33, ....

This has happened every time I enabled the html5 player on YouTube on Firefox, which is now enabled whenever possible. This problem appears both on Windows and OS X. I also tried both with Firefox the latest stable version and Nightly's latest version, in both the problem persists.

Please fix this as soon as possible.

Lets say I'm watching a 5:20 long YouTube video and then suddenly at 2:20 the audio stops working, but the video works just fine. I try reloading the page, but the audio always stops working at that time. If I skip that 2:20 point the audio works just fine if there isn't another point in the video when it stops working. Most other YouTube videos have different points when the audio stops working, e.g. 4:50, 3:11, 6:33, .... This has happened every time I enabled the html5 player on YouTube on Firefox, which is now enabled whenever possible. This problem appears both on Windows and OS X. I also tried both with Firefox the latest stable version and Nightly's latest version, in both the problem persists. Please fix this as soon as possible.

All Replies (2)

more options

HI bladestorm91, The rendering of test and audio playback will be as good as the packets that send the content to your computer. Does this happen with the same video in a different network?

more options

Thank you for answering, It happens on the same video in a different network, however I now believe that I may have spoken too soon for Firefox as this might be happening only in Nightly. I have tested the videos in which the audio had problems again in Firefox and the HTML5 player worked without a hitch.

The difference between Firefox and Nightly I noticed on YouTube is "Media Source Extensions" and "MSE & WebM VP9" support. They might be at fault for the audio problems, however I'm not knowledgeable in this field so I could be wrong.

I will try to test Firefox again in different networks for multiple videos to see if audio playback is working correctly on it. If the audio is not working correctly in Firefox I will report on it in this thread.