>prevent your browser from requesting the advertisers' JavaScript code. Your browser not only won't show the ads, it won't run the code that was supposed to show them or even send a request to the advertisers' servers.
Incidentally, just blocking JavaScript with NoScript kills quite a lot of ads (obviously, not first-party ones if you've white-listed their JavaScript for site functionality; but I try to avoid that when there isn't real demonstrated value) without any need for an explicit ad blocker.
Incidentally, just blocking JavaScript with NoScript kills quite a lot of ads (obviously, not first-party ones if you've white-listed their JavaScript for site functionality; but I try to avoid that when there isn't real demonstrated value) without any need for an explicit ad blocker.