Tap here to go to the mobile version of the site.
Your Firefox is out of date and may contain a security risk! Upgrade Firefox

Support Forum

Firefox hangs many times..


Firefox hangs many times.It's very annoying. It crashes after a pop up which says :

(Warning: Unresponsive Plugin; Shock wave flash may be busy, or it may have stopped responding.)

I updated the flash player another day but still this problem continued. Some other day a similar kind of pop up came but it didn't said anything about Shock wave flash but it is a script problem.Firefox always hangs because of some script problem. When i open Windows media player, Photoshop on the other side..Firefox hangs. I never had any problem with Firefox before.

Post a Reply

Additional System Details

Installed Plug-ins

  • Shockwave Flash 11.9 r900
  • Next Generation Java Plug-in 10.45.2 for Mozilla browsers
  • VLC media player Web Plugin 2.0.6
  • iTunes Detector Plug-in
  • Yahoo Application State Plugin version
  • Adobe PDF Plug-In For Firefox and Netscape


  • Firefox 25.0.1
  • User Agent: Mozilla/5.0 (Windows NT 6.2; rv:25.0) Gecko/20100101 Firefox/25.0
  • Support URL: https://support.mozilla.org/1/firefox/25.0.1/WINNT/en-US/


  • avast! Online Security 9.0.2006.53 (wrc@avast.com)
  • Speed Dial ({64161300-e22b-11db-8314-0800200c9a66})
  • Troubleshooter 1.1a (troubleshooter@mozilla.org)


  • incrementalGCEnabled: True


  • adapterDescription: Intel(R) G33/G31 Express Chipset Family (Microsoft Corporation - WDDM 1.0)
  • adapterDescription2:
  • adapterDeviceID: 0x29c2
  • adapterDeviceID2:
  • adapterDrivers: igdumd32
  • adapterDrivers2:
  • adapterRAM: Unknown
  • adapterRAM2:
  • adapterVendorID: 0x8086
  • adapterVendorID2:
  • direct2DEnabled: False
  • direct2DEnabledMessage: [u'blockedDriver']
  • directWriteEnabled: False
  • directWriteVersion: 6.2.9200.16384
  • driverDate: 10-1-2012
  • driverDate2:
  • driverVersion:
  • driverVersion2:
  • info: {u'AzureCanvasBackend': u'skia', u'AzureFallbackCanvasBackend': u'cairo', u'AzureContentBackend': u'none', u'AzureSkiaAccelerated': 0}
  • isGPU2Active: False
  • numAcceleratedWindows: 0
  • numAcceleratedWindowsMessage: [u'']
  • numTotalWindows: 2
  • webglRenderer: Google Inc. -- ANGLE (Intel(R) G33/G31 Express Chipset Family (Microsoft Corporation - WDDM 1.0) Direct3D9Ex vs_0_0 ps_2_0)
  • windowLayerManagerRemote: False
  • windowLayerManagerType: Basic

Modified Preferences

  • accessibility.typeaheadfind.flashBar: 0
  • browser.cache.disk.capacity: 358400
  • browser.cache.disk.smart_size.first_run: False
  • browser.cache.disk.smart_size.use_old_max: False
  • browser.cache.disk.smart_size_cached_value: 358400
  • browser.places.smartBookmarksVersion: 4
  • browser.sessionstore.upgradeBackup.latestBuildID: 20131112160018
  • browser.startup.homepage_override.buildID: 20131112160018
  • browser.startup.homepage_override.mstone: 25.0.1
  • dom.max_script_run_time: 20
  • dom.mozApps.used: True
  • extensions.lastAppVersion: 25.0.1
  • network.cookie.prefsMigrated: True
  • places.database.lastMaintenance: 1385444212
  • places.history.expiration.transient_current_max_pages: 26560
  • plugin.disable_full_page_plugin_for_types: application/pdf
  • plugin.importedState: True
  • plugin.state.npdeployjava: 0
  • privacy.sanitize.migrateFx3Prefs: True
  • storage.vacuum.last.index: 1
  • storage.vacuum.last.places.sqlite: 1384027760


  • User JS: No
  • Accessibility: No
Aman Routh
  • Top 25 Contributor
37 solutions 283 answers


The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Note: This will cause you to lose any Extensions, Open websites, and some Preferences.

To Reset Firefox do the following:

Go to Firefox > Help > Troubleshooting Information.

Click the "Reset Firefox" button.

Firefox will close and reset. After Firefox is done, it will show a window with the information that is imported. Click Finish.

Firefox will open with all factory defaults applied.

Further information:

Reset Firefox

Did this fix your problems? Please report back to us!

Thank you.

Modified by Aman Routh

Was this helpful to you? 2

Question owner

Still the same problem.

Was this helpful to you? 1
  • Top 25 Contributor
114 solutions 1458 answers

Try to remove all video programs that Firefox uses. Then, go to the web site and reinstall only the flash player.

Was this helpful to you? 1
  • Top 10 Contributor
  • Moderator
10738 solutions 96600 answers

You can check for problems with current Flash plugin versions and try these:

  • disable a possible RealPlayer Browser Record Plugin extension for Firefox and update the RealPlayer if installed
  • disable protected mode in the Flash plugin (Flash 11.3+ on Windows Vista and later)
  • disable hardware acceleration in the Flash plugin
Was this helpful to you? 2

Question owner

The 2 plugins which are out of date are java-deployment-toolkit and Adobe Acrobat.I never use to update them.Can that cause this problem too ?

Was this helpful to you? 1
  • Top 25 Contributor
114 solutions 1458 answers

Helpful Reply

Out of date anything can cause problems. Go to their web sites and install the current programs

Was this helpful to you? 2

Question owner

That didn't work.

Was this helpful to you? 1

Helpful Reply

I didn't updated those 2 programs but removed it because both of them are not needed for me.But still i am having this hanging problem.It's more than annoying.If i open 4 pages or more,sometimes Firefox hangs.If i open VLC player or Photoshop on the other side,it hangs.What else could be there to try...I think its better to quit Firefox.

Was this helpful to you? 5
Ask a question

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.