Fix firefox memory leak

It seams that the firefox 2 release has memory leak problems. I discovered the problem recently when I saw that my firefox was using more than 150 mb of ram after starting with 30 mb of ram. After some surfing I came across this fix, it basically clears the memory on firefox window minimize actions. The method is as follows:
Type about:config in to your address bar (these are firefox hidden settings), then right click and create a new boolean variable with the name config.trim_on_minimize and give it a value of true. That’s it, every time you minimize your firefox window it will free the memory it uses.