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Reducing memory usage in Mozilla Firefox

This article was been published more than a year ago. The information may be outdated.

If you’re like me, you use Mozilla Firefox as your preferred web browser. However, Firefox has one great weakness; its great love of RAM. I browsed around the web a bit, and found this workaround, which should help a bit at least. I have tried it, and it worked nicely for me.
 
What this workaround does is move Firefox to your hard drive when minimized, which results in Firefox taking up less RAM. Obviously, the amount of RAM taken up will increase when you maximize the window, but it appears to increase to less than it used to be, which could certainly be said to be an improvement.
 
The number one objection I have seen to this workaround is that people say that Firefx will take longer to maximize as the cache is located on the hard drive instead of in RAM. However, according to other bloggers out there, any delay is not noticeable.
 
Now, to the step-by-step:
 

  1. Open Firefox and go to the Address Bar. Type in about:config and then press Enter.
  2. Right Click in the page and select New -> Boolean.
  3. In the box that pops up enter config.trim_on_minimize. Press Enter.
  4. Now select True and then press Enter.
  5. Restart Firefox.

 
This should help with the problem, and at any rate you can always go back and delete the same setting that you just created should you start to experience any issues.

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