Do Not Track Plus

We believe that people have a right to privacy in their lives-whether in their homes or online.” That admirable sentiment is a quote from Albine, who distributes Do Not Track Plus; a free browser extension that prevents ads, sites, and social networks from tracking Internet users. Available for Firefox, Chrome, Safari, and Internet Explorer (with Opera in the works); DNT+ either blocks sites completely (the default setting), or allows you to “opt out” of targeted advertising (they can still track you, but they can’t target you with ads). And–as far as I can tell–blocking does not adversely affect web browsing (although IE claims a few seconds increase inload time)                                                            

http://www.abine.com/dntdetail.php