Disable Web Cookies

All Browsers give this option because a number of sites such as Yahoo!Mail require that these land on your system to allow you to log in.For instance, If your homepage is MyYahoo!, you'll need the Cookies to tell yahoo.com what preferences (Colors,Content,Layout) you set during the sign-up.
Advertisers gain the most from Cookies.Marketing firms such as Adsence use Cookies to Check what banner ads have you seen on your screen. Corporations and marketing people have earned a bad reputation for "Tracking user information" and keeping a log on surfers.Internet privacy experts label Cookies as Dangerous as Snoopy; you should delete Cookies at least once a month to free disk space and leave out traces of where have you been on the internet.Have a look at the Microsoft Page on managing and deleting cookies.Keep your history Clean on the Net.