CNET’s Seth Rosenblatt reports on Firefox’s “more nuanced approach” to implementing its Do-Not-Track (DNT) setting and efforts to provide additional user choice. Firefox engineers describe the past practice of “on” or “off” DNT implementation in light of what they describe as the “three states of Do Not Track.” Firefox’s Tom Lowenthal explains, “DNT:0 means, 'I consent to being tracked.’ DNT:1 means, 'I object to being tracked.’…When DNT is off, it doesn't mean 'please track me.' It means that the user hasn't told the browser their choice yet." Rosenblatt notes, “What's not clear is how sites react to that.”
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