When you visit a website, every website will store a text-based cookie on your PC – worth remembering it’s not an executable file. Websites will track your browser behavior using a cookie which is stored in your cache and history. The cookie is used for authentication (including encryption), storing site preferences and so forth. In fact a cookie can store anything that is “data”. Most browsers (IE, Firefox, Chrome, Safari) will allow users to delete cookies after a browser session (normally when you close the browser).
- Download BleachBit: http://bleachbit.sourceforge.net/
- Read more: http://bleachbit.sourceforge.net/news/bleachbit-081-evercookie
- Alternatively download: http://www.maxa-tools.com/cookie.php?lang=en
- Anonymizer Nevercookie add-on (works in Private Browsing mode on FireFox) is a proof-of-concept but nevertheless worth a look: http://nevercookie.anonymizer.com/
- Updated 09/05/11: https://addons.mozilla.org/en-US/firefox/addon/sharemenot/. ShareMeNot is a Firefox add-on designed to prevent third-party buttons (i.e. Facebook “Like” button”) from tracking you. The main advantage of ShareMeNot, is that unlike NoScript it doesn’t remove the buttons from the Web experience.
For those who use the popular CCleaner, this doesn’t currently remove these persistent cookies, so I’d suggest you use BleachBit or Maxa-tools to control/remove the evercookies. The most secure way to protect your browser from evercookies in my opinion, is to use a sandbox. This isn’t for beginners though.