- Restart Firefox every day. It consumes memory over time (NSS!) so by restarting it, the memory will be released
- uninstall any add-ons (extensions) that you don't use.
- Uninstall extra themes
- Run Firefox in Safe Mode
- Keep unused browser tabs closed
There are claims that the extensions (especially the problematic ones) are causing the memory leaks. However, I only run about 4 lightweight extensions that I keep updated and only the default Firefox theme and I still have the memory leak problem. In fact, today Firefox on my desktop is comsuming over 163mb after restarting it about 18 hours ago. Guess it's about time for another restart.
Come On Mozilla Foundation! Get this fixed or I fear that many will resort back to IE. Oh the guilt...