Firefox maxing out cpu: plugin-containe,firefox-bin

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http://www.linuxquestions.org – Using Iceweasel 10.0.12 I am having a problem when I am running a video in Iceweasel. I was watching a video from YouTube and my cpu will max out on usage. I ran the command top in a terminal and found the processes using the majority of cpu was plugin-containe and firefox-bin. I found an article that said to disable this plugin; to go to about:config and disable dom.ipc plugins. I tried this, but that didn't resolve anything. It took cpu usage away from plugin-containe and moved it to firefox-bin so I was still using the same amount of cpu. I included an attachment of about:config/dom.ipc. I (HowTos)