Which Firefox Tab Is Eating My CPU?

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According to top, plugin-containe is eating more than 120% of my CPU?
I expect that that is allowed because I have a dual core CPU. Firefox is sloooooooowwwww. I expect that plugin-containe… is running in a firefox tab. How do I non-destructively discover which one?

I’m running CentOS 6 and firefox 24.8.0 . I haven’t updated firefox in a while because I’ve read that doing so will cause me to lose all my tabs. I’d like to keep them for a while. There is rather a lot of them

Is there a way to tell firefox not to run a plugin unless its tab is currently selected?

3 thoughts on - Which Firefox Tab Is Eating My CPU?

  • Thanks. Contrary to expectation, I kept my tabs after restarting firefox. I have the tabs bookmarked. It looks like I’m going to have to delete tabs them one at a time.

    I really wish there was a way to tell firefox not to run stuff in deselected tabs.

  • Hello Michael,

    There is, it’s in the preferences, tabs:
    Don’t load tabs until selected.

    When opening FFX, if your session settings make it open all formerly opened tabs, then all tabs are opened back and only the selected one is loaded, the other ones are waiting for you to select then.

    Regards,