Which is hardly surprising as it isn’t looking for them, a total waste of time if you ask me (which you didn’t ;D).
Don’t worry about reported tracking cookies they are a minor issue and not one of security, if you really want to look for them use SAS (SuperAntiSpyware) to scan for and deal with them. - See http://en.wikipedia.org/wiki/HTTP_cookie.
Cookies - The main issue with cookies are third party cookies, those that aren’t for a site that you are viewing, they can track your browser usage and activity for that site other site (shopping, etc.). Depending on your browser (?) you should be able to block third party cookies, you can also set your browser to clear your cookies when you close it.
Since I use Firefox 5.x, I also have the cookie monster add-on and by default that only allows session cookies; they are only valid for the time you have your browser is running. The cookie monster add-on also allows you to accept cookies (normal time limited ones) for a site, like forum.avast.com as cookies are used so you don’t have to logon all the time, etc.
All of the above helps remove the need for you to manually manage cookies.
I did use SpyBot S&D until I figured out it is useless. SpyBot is one huge resource hog and could cause conflicts with avast. May I suggest sticking with avast, MBAM and SAS. avast has no issues with either one.
I am using malwarebytes for several years and can only tell that this software save my head couple of times. My recommendations to all. Must have software on every machine. 8)
MBAM and Iobit malware fighter works out fine......
IOBit info
http://www.malwarebytes.org/forums/index.php?showtopic=29681
http://www.malwarebytes.org/forums/index.php?showtopic=30989
http://www.malwarebytes.org/forums/index.php?showtopic=33217
And IMF can also track and kill those tracking cookies......