no sound played with firefox, e.g. on Larousse websitye

[locci]

firefox plays no sound

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: firefox 11.0+build1-0ubuntu0.11.10.1
ProcVersionSignature: Ubuntu 3.0.0-17.30-generic-pae 3.0.22
Uname: Linux 3.0.0-17-generic-pae i686
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu4
Architecture: i386
ArecordDevices:
 **** List of CAPTURE Hardware Devices ****
 card 0: Intel [HDA Intel], device 0: ALC271X Analog [ALC271X Analog]
   Subdevices: 1/1
   Subdevice #0: subdevice #0
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/controlC0: maxime 1506 F.... pulseaudio
 /dev/snd/pcmC0D0p: maxime 1506 F...m pulseaudio
BuildID: 20120310010446
CRDA: Error: [Errno 2] Aucun fichier ou dossier de ce type
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xb0600000 irq 42'
   Mixer name : 'Intel IbexPeak HDMI'
   Components : 'HDA:10ec0269,10250610,00100100 HDA:80862804,80860101,00100000'
   Controls : 20
   Simple ctrls : 11
Channel: release
Date: Wed Apr 11 22:00:30 2012
ForcedLayersAccel: False
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Ubuntu 11.10 "Oneiric" - Build i386 LIVE Binary 20111013-11:02
IpRoute:
 default via 192.168.1.1 dev wlan0 proto static
 169.254.0.0/16 dev wlan0 scope link metric 1000
 192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.14 metric 2
Profiles: Profile0 (Default) - LastVersion=11.0/20120310010446 (Running)
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
RunningIncompatibleAddons: False
SourcePackage: firefox
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 07/21/2011
dmi.bios.vendor: Insyde Corp.
dmi.bios.version: V1.03
dmi.board.asset.tag: Type2 - Board Asset Tag
dmi.board.name: HMA71_CP
dmi.board.vendor: Acer
dmi.board.version: Type2 - Board Version
dmi.chassis.type: 10
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnInsydeCorp.:bvrV1.03:bd07/21/2011:svnAcer:pnAspire7739Z:pvrV1.03:rvnAcer:rnHMA71_CP:rvrType2-BoardVersion:cvnChassisManufacturer:ct10:cvrChassisVersion:
dmi.product.name: Aspire 7739Z
dmi.product.version: V1.03
dmi.sys.vendor: Acer

[Paul White (paulw2u)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. We are sorry that we do not always have the capacity to look at all reported bugs in a timely manner. There have been many changes in Ubuntu since that time you reported the bug and your problem may have been fixed with some of the updates. It would help us a lot if you could test it on a currently supported Ubuntu version.

When you test it and it is still an issue, kindly upload the updated logs by running only once:

apport-collect 979299

and any other logs that are relevant for this particular issue.

[Launchpad Janitor (janitor)]

[Expired for firefox (Ubuntu) because there has been no activity for 60 days.]