misc/177404: youtube videos in firefox not working

[Yury]

>Number:         177404
>Category:       misc
>Synopsis:       youtube videos in firefox not working
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Wed Mar 27 02:10:00 UTC 2013
>Closed-Date:
>Last-Modified:
>Originator:     Yury
>Release:        FreeBSD-9.1
>Organization:
>Environment:
FreeBSD 94.180.117.72 9.1-RELEASE FreeBSD 9.1-RELEASE #6 r245611: Sun Jan 20 02:23:19 NOVT 2013
>Description:
YouTube became useless in latest Firefox last days. It either hangs in the video area, or tells me to upgrade Flash (it is the latest one for Linux, and from FreeBSD ports). In Epiphany YouTube still works. HTML5 is still too buggy, and not available for all videos, if works at all. Also severe audio-video de-sync  occurs when it is possible to start video in YouTube in Firefox (or lagging in reaction, sound is still on several seconds after closing youtube tab).
>How-To-Repeat:
Try to watch youtube in firefox with nspluginwrapper-1.4.4 and linux-f10-flashplugin-11.2r202.275.
>Fix:
Set dom.ipc.plugins.enabled to false in about:config of Firefox.

>Release-Note:
>Audit-Trail:
>Unformatted: