The False Teeth of Chrome's Ad Filter
(1) This article does not address other problematic aspects of Google services. When users sign into Gmail, for example, their activity across other Google products is logged. Worse yet, when users are signed into Chrome their full browser history is stored by Google and may be used for ad targeting. This account data can also be linked to Doubleclick's cookies. The storage of browser history is part of Sync (enabling users access to their data across devices), which can also be disabled. If users desire to use Sync but exclude the data from use for ad targeting by Google, this can be selected under ‘Web And App Activity’ in Activity controls. There is an additional opt-out from Ad Personalization in Privacy Settings.