Cookies, also referred to as web cookies, HTTP cookies or browser cookies, is a piece of text stored on the users computer to identify the user to various websites. It can be used for authentication, storing of site preferences, remembering shopping cart contents, anything that can be stored in a piece of text really.
You need to have cookies enabled to access some websites through our web proxies. To prevent old cookies from your computer being use, we recommend that you delete all your cookies before you start using our web proxy, at least if you are planning to access some websites where cookies are needed.
To use Facebook for instance you need to have cookies enabled, without that you will not be able to log in. The same goes for most social networks, online games and web emails you want to log in to. Overall, just deleting cookies before and after each time you use our web proxies is a good idea, if privacy is really important to you that is.