How can I find out how much RAM my plugins/extensions are using in Firefox 5?

Question

Is there a Firefox Task Manager (like in Google Chrome) that would allow me to see how much RAM my plugins/extensions/tabs are using?

Tamara Wijsman · Accepted Answer · 2011-08-20 20:02:51Z

3

From Firefox 6+ there is about:memory; so you'll need to upgrade to a newer less stable version.

For example, this is what Firefox 9.0a1 displays:

That's indeed a tab. Extensions are not shown as far as I know; plugins are available as a process:

enter image description here

answered Aug 20, 2011 at 20:02

Tamara Wijsman

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Ben Kraft · Accepted Answer · 2011-08-20 21:11:40Z

2

I don't know a way to do this in Firefox 5. In Firefox 7, about:memory got a lot of upgrades, including at least part of what you want.

Edit: Another answer has a nice screenshot, but I believe it will show the memory usage for each tab.

answered Aug 20, 2011 at 16:53

Ben Kraft

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Could you explain more about how the about:memory page might show him this?
– Simon Sheehan
Aug 20, 2011 at 20:28
Something like this works in Firefox 5.0
– Boris_yo
Aug 21, 2011 at 13:47
about:memory works in several previous versions, but it isn't as itemized; usually most of the memory is in very big categories that don't help too much.
– Ben Kraft
Aug 21, 2011 at 15:40
Cannot understand what all what is there means. Must pinpoint the culprit...
– Boris_yo
Aug 23, 2011 at 20:22

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2 Answers 2