[Bug 896603] [NEW] plugin-container keeps running

[Oscar Tiderman]

Public bug reported:

plugin-container is running constantly after beeing used even though not
needed any more, wasting resources.

To reproduce:
1. Start Firefox with one tab on a page without flash content (blocked with noscript in my case), run ps -e | grep plugin, no plugin-container is running. Fine.
2. Open a new tab with a site that has flash video and let it play, run ps -e | grep plugin, plugin-container is running.
3. Close the tab that has flash video on it and make sure there is no flash on the only active tab (all scripts blocked with noscript)
4. Run top and watch plugin-container continue to run with 1-5% CPU usage
5. Wait, wait and wait for 5 hours, run ps -e | grep plugin, plugin-container is still running with 1-5% CPU usage.

Expected:
When there is no flash to play, quit plugin-container and let Firefox start it next time it is needed.

This is a very unnecessary battery drain and resource hog, it's fine
that it is using CPU when it has work to do but make sure it quits
afterwards.

ProblemType: Bug
DistroRelease: Ubuntu 11.10
Package: firefox 8.0+build1-0ubuntu0.11.10.3
ProcVersionSignature: Ubuntu 3.0.0-14.23-generic 3.0.9
Uname: Linux 3.0.0-14-generic x86_64
NonfreeKernelModules: wl
AddonCompatCheckDisabled: False
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
ApportVersion: 1.23-0ubuntu4
Architecture: amd64
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:  oscar      2159 F.... pulseaudio
AuditLog:
 
BuildID: 20111115183813
CRDA: Error: [Errno 2] No such file or directory
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xd4400000 irq 42'
   Mixer name	: 'Intel IbexPeak HDMI'
   Components	: 'HDA:10ec0269,1025040e,00100100 HDA:80862804,104d4b00,00100000'
   Controls      : 24
   Simple ctrls  : 13
Channel: release
Date: Sat Nov 26 17:00:45 2011
EcryptfsInUse: Yes
ForcedLayersAccel: False
IncompatibleExtensions: NoScript - ID={73a6fe31-595d-460b-a920-fcc0f8843232}, Version=2.2, minVersion=1.9a2, maxVersion=1.9.6, Location=app-profile, Type=extension, Active=Yes
InstallationMedia: Ubuntu 10.04.1 LTS "Lucid Lynx" - Release amd64 (20100816.1)
IpRoute:
 default via 192.168.1.1 dev eth0  proto static 
 169.254.0.0/16 dev eth0  scope link  metric 1000 
 192.168.1.0/24 dev eth0  proto kernel  scope link  src 192.168.1.3  metric 2
Profiles: Profile0 (Default) - LastVersion=8.0/20111115183813 (Running)
RfKill:
 0: brcmwl-0: Wireless LAN
 	Soft blocked: no
 	Hard blocked: no
RunningIncompatibleAddons: True
SourcePackage: firefox
UpgradeStatus: Upgraded to oneiric on 2011-11-01 (25 days ago)
dmi.bios.date: 06/04/2010
dmi.bios.vendor: INSYDE
dmi.bios.version: V1.11
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Base Board Product Name
dmi.board.vendor: Intel Corp.
dmi.board.version: Base Board Version
dmi.chassis.type: 1
dmi.chassis.vendor: Chassis Manufacturer
dmi.chassis.version: Chassis Version
dmi.modalias: dmi:bvnINSYDE:bvrV1.11:bd06/04/2010:svnAcer:pnAspire1830T:pvrV1.11:rvnIntelCorp.:rnBaseBoardProductName:rvrBaseBoardVersion:cvnChassisManufacturer:ct1:cvrChassisVersion:
dmi.product.name: Aspire 1830T
dmi.product.version: V1.11
dmi.sys.vendor: Acer

** Affects: firefox (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug oneiric running-unity

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Title:
  plugin-container keeps running

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