If you're on Chrome (in which case there will be no lasting victories, only small ones), there's this extension: https://chrome.google.com/webstore/detail/iba-o

If you're on Chrome (in which case there will be no lasting victories, only small ones), there's this extension: https://chrome.google.com/webstore/detail/iba-opt-out-by-google/gbiekjoijknlhijdjbaadobpkdhmoebb?hl=en https://chrome.google.com/webstore/detail/iba-opt-out-by-goo... This looks like it does the same thing for Firefox: https://addons.mozilla.org/en-US/firefox/addon/targeted-advertising-cookie-op/ https://addons.mozilla.org/en-US/firefox/addon/targeted-adve... There may be IBA opt-out extensions for other browsers. AFAICT all they do is permanently block the DoubleClick and related cookies. This, in combination with Adblock Plus, seems to do the job for me. There are a lot of people complaining that the extensions don't work, but they probably do not realize that these only block the collection of new data tied to your browsing history, and not the display of the ads themselves, which is what you need Adblock Plus for.