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326w ago - Below are a few Firefox performance hacks, tweaks, and productivity enhancements that can be made via the About:config of Firefox.

To quote: Make Firefox Give Back RAM When Minimized
To enable the setting so that Firefox gives back RAM, do the following:

1) In the Firefox address bar type: about:config and then hit Enter.
2) In the "Filter" search, type: config.trim_on_minimize
3) Right click on the setting and click "toggle" so that the Value turns to "true".

After performing the above, you will need to restart the browser and Firefox will now "give back RAM" when minimized. To undo the change, perform the steps again but make sure the value turns to "false".

Check out the rest linked above!

Note: Article shortened per request from Keith Glines (IP: on May 24, 2009.

The 12 Best Firefox About: Config Performance Tweaks

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#5 - Sarge187 - 325w ago
Sarge187's Avatar
Can't seem to find the ram one, shame.

#4 - wsc - 325w ago
wsc's Avatar
thank you. looking forward to these tweaks!

#3 - dajedimaster - 325w ago
dajedimaster's Avatar
thanks, this will come in handy

#2 - saviour07 - 326w ago
saviour07's Avatar
i think the ram one is the most useful, especially if your like me and open up like a million tabs only to see your memory gradually building up in task man lol

#1 - Tsusai - 326w ago
Tsusai's Avatar
"Make Firefox Give Back RAM When Minimized" & "Hacking Firefox Network Settings for Performance"