Google Analytics Opt-Out Browser Add-On

To provide website visitors the ability to prevent their data from being used by Google Analytics, we have developed the Google Analytics opt-out browser add-on for the Google Analytics JavaScript (ga.js, analytics.js, dc.js). The Google Analytics opt-out add-on is designed to be compatible with Chrome, Internet Explorer 11, Safari, Firefox and Opera. Learn more about about the opt-out and how to properly install the browser add-on here.

Source: tools.google.com