I am using firefox... When i checked the site it created the alert.... I think its not a false alert.
I got some info from Google..
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Tracking info is used by ads to check how many times the page is loaded or how many users have clicked their ads. This is common to banner ads. This is nothing to worry about. The problem with banner ads are those which download malware or sometimes redirect to a site which hosts malware. If you see any antivirus alerts other than the one you are using it is probably antivirus xp or its derivatives. These are fake anti virus which is trying to install in your pc.
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May be becoz of ads in the site Symantec is giving alert.