Firefox 3.6.x and Fx 11, about:config noscript.doNotTrack.enabled defaults to "true".Yahoo! Launches Global Support for Do Not Track
Thursday, March 29th, 2012
Yahoo! is excited to be one of the first large online companies to announce live, global support for Do Not Track (DNT)! ....
How does it work?
If you’re using a more recent web browser you may have an option to set a DNT preference (location varies by browser). If you activate this feature, the DNT signal is sent to our servers when you view websites where Yahoo! collects data. When our servers receive the DNT signal, this activates our existing opt-out process. With DNT turned on, Yahoo! will no longer score your activities for advertising or content interests and no longer personalize your ads and content based on those interest scores....
When will the rollout be completed?
We’ve already begun the implementation process and will continue the rollout to our systems around the globe with completion targeted for early summer. Several of our advertising platforms (Right Media and interclick) and properties already support the DNT standard – with more adding support every week. Once you come into contact with a system that supports DNT, your opt-out will be set and apply to your interactions with Yahoo! going forward.... <snip>
Which is good, because Firefox 3 itself doesn't have DNT setting at all, while Fx 11 privacy.donottrackheader.enabled defaults to "false".
So NS users are default-engaged with this.
Kudos to Yahoo!
Perhaps this will pressure other major sites to follow their lead.
Leave favorable comments at the blog linked above, and let other sites know.
One of the early objections to using this was "no sites honor it anyway, and if only 2% of the browsers enable it, it's another fingerprint".
The first objection looks like it's disappearing soon.
And now there's a reason for *everyone* to enable DNT -- even on browsers that don't support NS, but do support DNT -- so that it adds zero uniqueness to any browser.