Google Analytics opt-out browser add-on – Analytics Help

Google Analytics opt-out browser add-onYou can opt-out of having making your site activity available to Google Analytics by installing the Google Analytics opt-out browser add-on. The add-on prevents the Google Analytics JavaScript (ga.js, analytics.js, and dc.js) that is running on websites from sharing information with Google Analytics about visit activity.Using the Google Analytics opt-out browser add-on will not prevent site owners from using other tools to measure site analytics. It does not prevent data from being sent to the website itself or in other ways to web analytics services.

Source: Google Analytics opt-out browser add-on – Analytics Help