This is a good thing. Though advertisers do not have to honor it, it’s a great idea to enable this feature:
1. Make sure Chrome is up to date, this version or higher: Version 23.0.1271.64
2. Click on the link below if Chrome is your browser to be able to turn on the feature.
chrome://chrome/settings/search#do%20not%20track
3. Check off the bottom box as shown below.
