It's not a problem with Norton> it's with your settings! Unless you reset the Cookies to block 3rd party Cookies, you will get them back when ever you visit a site that has an ad or image or other with a Tracking Cookie embedded.
What are Tracking Cookies?
Tracking cookies are only created to track a users movement. The movement can still only be tracked if the user visits a website that displays the advertisement scripts of the company that has a cookie stored on the system. Tracking cookies raise privacy issues, as they allow companies to partially track an Internet user’s movement on the Internet.
The difference between First Party and Third Party Cookies:
A first party cookie is placed by the website itself. For instance,TechSpot will leave a First Party Cookie.
A third party cookie is placed by scripts from other services, mostly advertisements that are loaded on the page. So you might find 3rd party Cookies from any ads on the site.
Reset Cookies
For Internet Explorer: Internet Options (through Tools or Control Panel) Privacy tab> Advanced button> CHECK 'override automatic Cookie handling'>
CHECK 'accept first party Cookies'>
CHECK 'Block third party Cookies'>
CHECK 'allow per session Cookies'> Apply> OK.
For Firefox: Tools> Options> Privacy> Cookies>
CHECK ‘accept Cookies from Sites’>
UNCHECK 'accept third party Cookies'> Set Keep until 'they expire'. This will allow you to keep Cookies for registered sites and prevent or remove others. (Note: for Firefox v3.5, after Privacy click on 'use custom settings for History.')
I suggest using the following two add-on for Firefox. They will prevent the Tracking Cookies that come from ads and banners and other sources:
AdBlock Plus
Easy List
For Chrome: Tools> Options> Under The Hood> Privacy Section> CHECK 'Restrict how third party Cookies can be used'> Close.
(First-party and third-party cookies can be set by the website you're visiting and websites that have items embedded in the website you're visiting. But when you next visit the website, only first-party cookie information is sent to the website. Third-party cookie information isn't sent back to the websites that originally set the third-party cookies.)
This should make Norton happier!