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with some regularity, everytime I attempt to view videos on the Weather Channel, Firefox not only freezes, but it locks down any keyboard entry to close it, thus forcing a shutdown of my computer, ...


this problem is not duplicated when viewing same page in Internet Explorer8.0.6xxx.


This was most recent website visited and when it automatically redirected to the next video in line, it froze the mouse. I tried to launch the task manager at which point it locked out the keyboard.

(This PC is a Dell Precision T3500 w/ 6G of RAM running WinXP Pro x64, there is no rationale for this kind of incompetence.)

This happens WAY TOO OFTEN, like more than 50% of visits to video oriented sites like youtube etc

Chosen solution

Additional System Details

Sites Affected


Installed Plug-ins

  • Shockwave Flash 10.3 r181
  • np-mswmp
  • 1.9.0042.0
  • RealPlayer(tm) LiveConnect-Enabled Plug-In
  • RealJukebox Netscape Plugin
  • The QuickTime Plugin allows you to view a wide variety of multimedia content in Web pages. For more information, visit the QuickTime Web site.
  • Adobe PDF Plug-In For Firefox and Netscape 10.1.0
  • Default Plug-in
  • NPRuntime Script Plug-in Library for Java(TM) Deploy
  • Next Generation Java Plug-in 1.6.0_26 for Mozilla browsers
  • Yahoo Application State Plugin version
  • 4.0.60531.0
  • Windows Presentation Foundation (WPF) plug-in for Mozilla browsers
  • RealPlayer(tm) HTML5VideoShim Plug-In
  • Google Update


  • User Agent: Mozilla/5.0 (Windows; U; Windows NT 5.2; en-US; rv: Gecko/20110614 Firefox/3.6.18 ( .NET CLR 3.5.30729)

More Information

I am still running Firefox/3.6.18
I have tried upgrading to Ff4 and to Ff5, but that did NOT fix the problem.
This is occurring to a Dell Precision T3500, with an
Intel Xeon (quadcore) W3520 2.67GHz,
Windows XP Professional x64 (SP2)
current: (both have room to grow)
pagefile on HD-1 = 8.99 GB
pagefile on HD-2 = 6.84 GB

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10756 solutions 96800 answers

If a plugin has focus then it processes all keys.

Doesn't the mouse work at all if you click elsewhere?

Did you ever change the timeout pref (dom.ipc.plugins.timeoutSecs) for Out-Of-Process-Plugins?

Question owner

Doesn't the mouse work at all if you click elsewhere?

when the video page freezes, so does the mouse, the mouse does NOT Move

Did you ever change the timeout pref .... ?

Never knew I could do this as it is not in the Firefox options and since Firefox locks up without warning or error messages, it never provides fixes I have now made the change to the -1 setting per the information on the link you sent, so will see if this provides any resolution to this ignorant problem.

Question owner

well that didn't really fix the problem, the page still froze, but after a few seconds, I did regain mouse movement though it would still freeze sporadically, but the keyboard access came back and I was able to engage the task mgr and kill the browser without shutting down the entire computer.

Hasan 477 solutions 5600 answers

Troubleshooting extensions and themes

Check and tell if its working.

Question owner

I checked all the add-ons, extensions yada yada etc and none were reporting issues or in need of being updated. Looking around the other forums, it appears it is the plugincontainer.exe (circa Ff 3.6.4?), that is not performing its function as a streamlined internet liaison for the browser apps. Likewise discovered yesterday that when I was able to shutdown firefox and attempt to restart, it indicated there was an existing Ff thread, so I 'killed' the thread that was showing, but when I 'killed' the accompanying plugincontainer, it froze my computer again. I've pretty much lost any faith in Ff at this point, I had more problems months ago when I attempted to upgrade to either 4 or 5, which is why I returned to 3.6xxx and I was likewise not impressed with Chrome.

Hasan 477 solutions 5600 answers

Chosen Solution

Firefox Hangs

Check and tell if its working.

Question owner

Based on my last input, I followed the instructions I found elsewhere, to disable the plugin container and tonight tested it on the WEather Channel's video page and harassed the page as much as i could. No problems indeed the plugincontainer was the culprit no idea why Firefox would engage such an incompetent partner to their browser.