Youtube and Vine videos not playing when using html5

UNCONFIRMED
Unassigned

Status

()

Firefox
General
--
major
UNCONFIRMED
3 years ago
a year ago

People

(Reporter: powala_taczewa, Unassigned)

Tracking

({html5})

37 Branch
x86_64
Windows 7
html5
Points:
---

Firefox Tracking Flags

(Not tracked)

Details

(Whiteboard: [platform-rel-Youtube])

(Reporter)

Description

3 years ago
User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:37.0) Gecko/20100101 Firefox/37.0
Build ID: 20150326190726

Steps to reproduce:

After downloading Firefox 37 to new computer I noticed that I am unable to play any youtube videos. After few hours of trying to pinpoint bug I realised it was problem with playing html5, as when I downloaded older firefox version (36) everything is working fine as long as I dont enable HTML5 on youtube.

Disabling media.fragmented-mp4.enabled in about:config makes videos work on youtube again, but not on Vine. Problem probably is H.264.

Additionaly, I created Ubuntu system on virtualbox and there everything is working fine, so it seems not to be hardware issue.
As main system I run Windows 7 Professional N.


Actual results:

On youtube, after starting video buffering wheel will spin forever. On vine videos will simply not play.


Expected results:

Videos should play.
(Reporter)

Updated

3 years ago
Severity: normal → major
Component: Untriaged → General
Keywords: html5

Comment 1

3 years ago
This issue seems to have just appeared in 37.x.  I am also seeing it very consistently in 37.0.1 on certain videos.

Updated

2 years ago
platform-rel: --- → ?

Updated

2 years ago
Whiteboard: [platform-rel-Youtube]
platform-rel: ? → ---
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