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Firefox hang in task list after closing successfully

Posted

OS: windows 7 32 and 64-bit Symptom: firefox can be open can close "properly" without error message. But when you look in the task list, firefox is still there. You still can open firefox without problem. It will add another process if you close it. So more and more processes in the task list if you repeating open and close after surfing some web sites. You cannot kill the task, even you are administrator. The only way to get rid of it is to re-start the PC. It happens in 3 of my PCs.

Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.5 r502
  • Next Generation Java Plug-in 10.10.2 for Mozilla browsers
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.5
  • Google Update
  • npFFApi
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Plug-in for detecting Nero Kwik Media.
  • Intel web components for Intel® Identity Protection Technology
  • Intel web components updater - Installs and updates the Intel web components
  • 4.1.10329.0
  • VLC media player Web Plugin 2.0.0
  • 2.1
  • pptv plugin
  • PlayStation(R)Network Downloader Check Plug-in
  • CANON iMAGE GATEWAY Album Plugin Utility Module for IJ
  • The plug-in allows you to open and edit files using Microsoft Office applications
  • Office Authorization plug-in for NPAPI browsers

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0

More Information

Troubleshooting Information
This page contains technical information that might be useful when you're
trying to solve a problem. If you are looking for answers to common questions
about Firefox, check out our support website.
Application Basics
Name
Firefox
Version
18.0
User Agent
Mozilla/5.0 (Windows NT 6.1; WOW64; rv:18.0) Gecko/20100101 Firefox/18.0
Profile Folder
Enabled Plugins
about:plugins
Build Configuration
about:buildconfig
Crash Reports
about:crashes
Memory Use
about:memory
Extensions
Name
Version
Enabled
ID
Adobe Acrobat - Create PDF1.2falseweb2pdfextension@web2pdf.adobedotcomAdobe Contribute Toolbar6.0false{01A8CA0A-4C96-465b-A49B-65C46FAD54F9}Norton Family2.6.0.52false{6D5C8FC4-DE46-41bf-9092-93F0F78E9115}NoScript2.6.4.2false{73a6fe31-595d-460b-a920-fcc0f8843232}ZoneAlarm Security Engine1.5.393.22false{FFB96CC1-7EB3-449D-B827-DB661701C6BB}
Important Modified Preferences
Name
Value
accessibility.typeaheadfind.flashBar0browser.cache.disk.capacity358400browser.cache.disk.smart_size.first_runfalsebrowser.cache.disk.smart_size.use_old_maxfalsebrowser.cache.disk.smart_size_cached_value358400browser.places.smartBookmarksVersion4browser.startup.homepage_override.buildID20130104151925browser.startup.homepage_override.mstone18.0browser.tabs.warnOnClosefalsedom.mozApps.usedtrueextensions.lastAppVersion18.0gfx.direct2d.disabledtruegfx.direct3d.prefer_10_1truelayers.acceleration.disabledtruenetwork.cookie.lifetimePolicy2network.cookie.prefsMigratedtrueplaces.database.lastMaintenance1357456360places.history.expiration.transient_current_max_pages104858privacy.clearOnShutdown.formdatafalseprivacy.sanitize.migrateFx3Prefstrueprivacy.sanitize.sanitizeOnShutdowntruesecurity.warn_viewing_mixedfalse
Graphics
Adapter DescriptionIntel(R) HD Graphics 3000Adapter Driversigdumd64 igd10umd64 igd10umd64 igdumd32 igd10umd32 igd10umd32Adapter RAMUnknownClearType ParametersGamma: 2200 Pixel Structure: RGB ClearType Level: 50 Enhanced Contrast: 50 Device ID0x0112Direct2D Enabledno informationDirectWrite Enabledfalse (6.1.7601.17789)Driver Date9-26-2012Driver Version9.17.10.2867GPU #2 ActivefalseGPU Accelerated Windows0/1 Basic no informationVendor ID0x8086WebGL RendererGoogle Inc. -- ANGLE (Intel(R) HD Graphics 3000)
AzureCanvasBackendcairoAzureContentBackendnoneAzureFallbackCanvasBackendnone
JavaScript
Incremental GC
true
Accessibility
Activated
false
Prevent Accessibility
0
Library Versions
Expected minimum versionVersion in useNSPR4.9.44.9.4NSS3.14.1.0 Basic ECC3.14.1.0 Basic ECCNSSSMIME3.14.1.0 Basic ECC3.14.1.0 Basic ECCNSSSSL3.14.1.0 Basic ECC3.14.1.0 Basic ECCNSSUTIL3.14.1.03.14.1.0

iamjayakumars
  • Top 10 Contributor
418 solutions 4938 answers

Most often hanging at exit is caused by Extensions, maybe plugins. Try Firefox Safe Mode; don't check any items, just click "Continue to Safe Mode". http://support.mozilla.com/en-US/kb/Safe+Mode

See more:

Question owner

I have tried the safe mode. Open and close 2 to 3 times are OK. After that, the same happens.

iamjayakumars
  • Top 10 Contributor
418 solutions 4938 answers

Make sure that your Addons are updated.

Question owner

Hi, Yes all the addons are updated.