How to fix the Firefox memory leak (Firefox hack)
Firefox memory leak? It doesn’t have one. Unfortunately, because of the way it’s configured to run out of the box it *looks* like it has one.
Follow these simple steps to get your Firefox memory usage under control.
http://internetducttape.com/2006/12/02/how-to-fix-the-firefox-memory-leak-firefox-hack/
These configuration changes are a trade-off between internet browsing speed and memory usage. They are most useful if you are multitasking and need Firefox to be less of a memory hog while using other applications.

