I've been having a Plug in Container problem.

[RC]

My computer would slow to a crawl and even freeze sometimes. I would kill the processes with Task Manager. I have Firefox 5.
Till now, Google was not much help. Today I found this:

"Background A new Firefox crash prevention feature was introduced in Firefox 3.6.4 to load Adobe Flash (as well as Microsoft Silverlight and Apple QuickTime, on Windows) in a separate process named "plugin-container". When one of these "out-of-process" plugins crashes or stops responding for a specified time period (10 seconds in Firefox 3.6.4 or 45 seconds in Firefox 3.6.6) , only the plugin is terminated and you will get a plugin crash notice with the option of sending a crash report to Mozilla. The purpose of this new feature is to prevent the entire Firefox browser from crashing when a plugin hangs or crashes. Ref: What is plugin-container The Adobe Flash plugin has crashed Plugin crash reports

If you are having problems wit plugin.container and reading the above articles isn't helpful:

You can stop plugins from loading in a separate "plugin-container" process by setting all dom.ipc.plugins.enabled.* preferences to false in about:config as explained here: http://kb.mozillazine.org/Plugin-container_and_out-of-process_plugins#Disabling_crash_protection "

http://support.mozilla.com/en-US/questions/713600

The last sentence translated:

Put about:config in FireFox address space.
Click on the I Understand you can destroy something button.
In the Filter, type dom.ipc
Right click on dom.ipc.plugins.enabled and select Toggle
Done

I just did this and plug in container didn't start when I looked at the local TV schedule and the annoying video still works.