Are Tracking Cookies Harmful?
Recently got AVG Anti-Spyware and it found tracking cookies, should I delete them?

Cookies are created when you click "Remember me" when you log into different web sites. Basically, the browser looks for a cookie and logs you in automatically. They can only be harmful if other people use your computer and if they access those same web sites that you do, because then they use your account automatically. If you're the only one using your computer, then cookies can't cause any harm, in fact they are a big help so you don't have to log into lfsforum every time.

Quote from shiny_red_cobra :

Cookies are created when you click "Remember me" when you log into different web sites. Basically, the browser looks for a cookie and logs you in automatically. They can only be harmful if other people use your computer and if they access those same web sites that you do, because then they use your account automatically. If you're the only one using your computer, then cookies can't cause any harm, in fact they are a big help so you don't have to log into lfsforum every time.

I'll delete them anyway, Firefox can remember all my passwords ;]