486883 - During extension uninstall Firefox should remove all extension data from the Firefox config files

Status: RESOLVED DUPLICATE of bug 258301

(Toolkit :: Add-ons Manager, defect)

Description

[Brian Carpenter [:geeknik]]

User-Agent:       Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1b4pre) Gecko/20090404 Shiretoko/3.5b4pre
Build Identifier: Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.9.1b4pre) Gecko/20090404 Shiretoko/3.5b4pre

I couldn't find out who was responsible for removing unused extension data from the Firefox config files, so I'm filing this.  Firefox remove the extension data from the config files when that extension is uninstalled. If it can't be removed at that time, a check should be run on the next start for unused extension data and it should be removed at that time.

Reproducible: Always

Steps to Reproduce:
1. Open Firefox.
2. Navigate to AMO and install DownThemAll or WebOfTrust.
3. Restart Firefox.
4. Surf around to a few random sites and then uninstall these extensions.
5. Restart Firefox and open about:config
6. Search for extensions.dta and weboftrust
7. Look at all the "crap" that is left behind after the uninstallation.
Actual Results:  
Extension data is not removed from the Firefox config files when the extension is uninstalled.

Expected Results:  
Extension data should be removed from the Firefox config files when the extension is uninstalled.