From:  Reshat Sabiq <sabiq@csociety.org>
Date:  30 May 2005 04:16:05 Hong Kong Time
Newsgroup:  news.mozilla.org/netscape.public.mozilla.performance
Subject:  

Memory usage

NNTP-Posting-Host:  rheet.mozilla.org

It appears there is a memory leak somewhere. I had 2 firefox windows (1 
process), with about 25 tabs, and memory usage was showing about 240MB. 
Closing some windows, including 1 or 2 with big web-accessed pdf files, 
to a point where only about 10 tabs were open in 1 windows didn't 
decrease it much. Exiting from the process, and re-launching it, 
decreased total memory usage by about 320MB. If i were to guess, it 
would be PDF plug-in, but it could also be something more generic. The 
tabs in the first window that stayed thruout were open for about a month.

Just a note, in case someone wants to look into it.