1135970 - Audio drops after 21 minutes

Status: RESOLVED INVALID

(Firefox :: Untriaged, defect)

Description

[Franpa_999]

User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:36.0) Gecko/20100101 Firefox/36.0
Build ID: 20150222232811

Steps to reproduce:

Play a video on Youtube using the HTML5 video player.


Actual results:

After 21~ minutes of watching the video the audio output from any web software loaded in Firefox ceases for many minutes (10+?). Restarting the web browser restores audio. Rarely only one audio channel ceases (So you only hear the left or the right channel instead of both).

Other audio programs that are not running within Firefox (Such as Media Player Classic Home Cinema for example) work fine during this audio outage.


Expected results:

The audio should not stop.

Comment 1

[Andre Klapper]

Hi reporter, 
unfortunately this report is not very useful because it does not describe the problem well. No specific example URL was given. 
If you have time and can still reproduce the problem, please read https://developer.mozilla.org/en-US/docs/Mozilla/QA/Bug_writing_guidelines and add a more useful description to this report.

Comment 2

[Paul Oiegas [:poiegas], PM for (Ecosystem QA, Services QA, WebCompat QA, Ads QA, and Solo QA teams)]

Hi Franpa,

I have tested your issue using latest Firefox release (43.0.3) and latest Nightly build (46.0a1-20151228030213) and could not reproduce your issue. I have played videos for more than 30 minutes using html5 player on youtube (autoplay on) and the sound was present for each song.

The issue you encounter may have been fixed along the way since FF 36.0. Can you please test if this still reproduces on your end using latest Firefox release or latest Nightly build (https://nightly.mozilla.org/) and report the results ? When doing this, please use a new clean Firefox profile or even safe mode (https://support.mozilla.org/en-US/kb/troubleshoot-and-diagnose-firefox-problems).

Thanks,
Paul

Comment 3

[Franpa_999]

I believe toggling "media.mediasource.webm.enabled" in about:config was the source of the problem. I had been having various problems related to Youtube in most versions of Firefox with that option enabled and it wasn't until around Firefox 41 or 42 that I figured it out.

You can close this bug report, it hasn't happened for a extremely long time.