Reduce Firefox Memory Usage

Firefox's memory leakage problems are well documented. This tip from gHacks should reduce Firefox's memory usage to under 10MB. It's very simple to implement:

1. Write 'about:config' in your firefox address bar and hit enter.
2. Right click and select new Boolean.
3. Paste config.trim_on_minimize in the field and hit enter again
4. Select True from the list.
5. Restart Firefox.