AVG resident shield alert cookie.zedo every time I open firefox or thunderbird

Question

Every time I open Firefox or Thunderbird I get a "resident Shield ALert on "Mozilla\Firefox\Profiles\dlmgqhum.default\cookies.sqlite".
How do I stop this?

Answer 1

Zedo is a tracking cookie:
*http://www.securitystronghold.com/gates/zedo-cookie.html (can '''not''' vouch for the Zedo Cookie Removal Tool mentioned)
*http://www.seasonsecurity.com/a/how-do-i-remove-a-tracking-cookie-completely-44575.html (Read all; pay particular attention to post #4 by Andy)
Have you allowed AVG to try to remedy the problem?
'''<u>Malware removal</u>'''<br />
Download, install and update as many of the following as possible until your infections are cleaned.
#The '''<u>free versions</u>''' of these scanners will detect infections and clean your system; no need to purchase
#'''<u>Different malware scanners detect some malware that other scanners do not.</u>'''
#If you are unable to download the malware programs,
#* change the name of the installer program before saving the download to your hard drive, and
#* once installed, go to the installation folder for the program and change the name of the program executable file (i.e., for Malwarebytes Anti-Malware, change mbam.exe to xyz-mb.exe), then update the program and run the scan.
#* you may need to download on an un-infected computer, change the name of the installer program, copy the installer to a CD or USB thumb drive, and transport to your system for installation.
#Some stubborn malware will need to be removed in '''Windows Safe Mode with Networking'''. See:
#*http://www.pbcomp.com.au/using-windows-safe-mode.html
#*http://www.malwarehelp.org/restart-into-safe-mode-how-to-2010.html
*Malwarebytes' Anti-Malware - http://www.malwarebytes.org/mbam.php
*SuperAntispyware - http://www.superantispyware.com/
*AdAware - http://www.lavasoftusa.com/software/adaware/
*Spybot Search & Destroy - http://www.safer-networking.org/en/index.html
*Windows Defender - http://www.microsoft.com/windows/products/winfamily/defender/default.mspx
*Dr. Web Cureit - http://www.freedrweb.com/cureit/
If these don't find or can't clear the infection(s), post in one of these forums for specialized malware removal help:
#Read and follow their rules for posting
#Follow their instructions '''to the letter'''
#Be patient; you are put in a queue and you will get a response when they get to your post
*http://bleepingcomputer.com
*http://www.spywareinfoforum.com/
*http://www.spywarewarrior.com/index.php
*http://forum.aumha.org/