How to reduce memory when Firefox is minimize

Firefox eats the memory too much if you run it in a long time. As I checked it ate over 100MB RAM when I run it in a few hours, near a half of VS 2005 in the same time. Suck!

Following these steps you'll reduce the memory Firefox needs when it's minimze:

    1. With Firefox up and running, type about:config and hit enter.
    2. Right click on the new page and select New -> Boolean.
    3. In the pop-up window, type in "config.trim_on_minimize" without 
       quotes and hit enter.
    4. In the next pop-up window, select True and hit enter.
    5. Restart your browser