I've answered this recently on reddit, heres the relevant link and comment: http://www.reddit.com/r/Irony/comments/1ci4ri/went_to_check_out_ghostery_for_chrome/

I've answered this recently on reddit, heres the relevant link and comment: http://www.reddit.com/r/Irony/comments/1ci4ri/went_to_check_out_ghostery_for_chrome/ http://www.reddit.com/r/Irony/comments/1ci4ri/went_to_check_... Hardly anything Ghostery does. The rules are defined by Google and the wording is unfortunate but largely correct: any extension that needs access to tabs, content scripts, and requests/responses will get the same message. So, basically, any extensions for content blocking will ask for these including Adblock/ABP+, Script no, whatever.