DigitMemo.com

Firefox 3 would use less memory than Firefox 2 did, hopefully.

Many Mozilla community members, including both volunteers and Mozilla Corporation employees, have been helping to reduce Firefox’s memory usage and fix memory leak bugs lately.

To get involved for any Firefox user, just an easy way to help is to browse with a trunk nightly build wrapped in a script that calls leak-gauge.pl when Firefox exits. If it reports that documents or windows leaked, try to figure out how to reproduce the leak and then file a bug report.