Is Mozilla "Undermining the Openness of the Internet"?

One of the core areas that Mozilla is working on is user privacy, and one important aspect of this is controlling cookies. Most people are now aware that sites they visit seek to place cookies - small strings of information - on their systems as a way of tracking when and what they visit on that site. What many may not know is that so-called "third-party" cookies are also widely used: these allow people to be tracked as they move from site to site, and effectively enable a detailed picture of their use of the Web to be built up.

On Open Enterprise blog.