482871 - Used memory is never cleaned

Status: VERIFIED INCOMPLETE

(Firefox :: General, defect)

Description

[Rudinei Dias]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 5.1; pt-BR; rv:1.9.0.7) Gecko/2009021910 Firefox/3.0.6, Ant.com Toolbar 1.3 FirePHP/0.2.4
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 5.1; pt-BR; rv:1.9.0.7) Gecko/2009021910 Firefox/3.0.6, Ant.com Toolbar 1.3 FirePHP/0.2.4

After few hours using firefox and working (i develop sites), firefox crash my system. On task manager i see what firefox never clean memory usage, and increase amount ever. On a linked image above, you're see what i talk. At least 1 GB used by firefox and the only process running is a 75mb of download.
I love firefox but its let me crazy.

Reproducible: Always

Steps to Reproduce:
1. work one day opening a lot of big pages.
2. close all pages mantening ff opened.
3. see task manager

Comment 1

[Matthias Versen [:Matti]]

This report is to general to be useful, we need exact steps to reproduce.

A first step would be to run Firefox in the Firefox safemode to be sure that this isn't caused by an addon (http://support.mozilla.com/en-US/kb/Safe+Mode )

Comment 2

[Wayne Mery (:wsmwk)]

with no update, this is
=> incomplete