What is the difference to answering 10 to 20 "Allow/Deny?" question on each website? The website just won't work until you figure out which 3 of the 15 requests are needed to render the website properly. Most of these domains aren't "microsoft.com" but something like "gibberish123.net". Good luck guessing whether the request is legitime/usefull.

edit: sounds like another addon idea: find the minimal set of 3rd parties needed to render a website.