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It would be great if they could roll such a feature into a convenient UI. Just a magic "Firefox, whatever you are doing.. knock it off" button would be great. It could look at system memory usage and CPU usage, determine if either is high enough that it might cause user distress, and kill whatever tabs are the most likely offenders.

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I like this idea. A bit like the pause buttons on my VMs.

I have this type of issue more with Chrome than Firefox though and it always seems to be related to leaving a tab open with a video for a long time, even if it isn't being played.

At least with Chrome there is the built in Task Manager.

I'd love for Firefox to have a task manager like that.

> At least with Chrome there is the built in Task Manager.

And the about:memory page, which shows you memory usage of all your extensions too.

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