Add Mozilla's MemBuster test http://blog.pavlov.net/2008/03/11/firefox-3-memory-usage/ http://random.pavlov.net/membuster/index.html http://random.pavlov.net/membuster/measure2.py
Just ran this in yesterday's nightly. It leveled off around 180MB rprvt for much of the test, then dropped to 153 after. Test run by going to http://random.pavlov.net/membuster/index.html, results noted by watching the rprvt column in top as it ran.
*** Bug 18525 has been marked as a duplicate of this bug. ***