Microsoft has submitted its proposal for web tracking protection to the W3C for consideration as a standard. The proposal is in the earliest stages of the process and has not been approved, a process that can take years in some cases. Microsoft has implemented a version of its Web Tracking Protection mechanism in the release candidate for Internet Explorer 9. Mozilla has developed its own technology and Google is working on a permanent opt-out mechanism for enabling users to prevent sites from tracking their movements with cookies. Microsoft s proposal relies on the concept of filter lists, which Web site owners can publish and IE9, and presumably other browsers, can consume and parse.
Source: https://threatpost.com/microsoft-submits-tracking-protection-proposal-w3c-022511/74968/