Firefox should integrate a tracker-blocker which blocks all ads which rely on executing Javascript as well as profiling-related 3rd-party code snippets, but leaves ad images which are integrated into the page, served exclusively by the owner of the page, and are based on the content offered by the page. Like magazine ads.

Everything else is just agreeing with the advertising industry on their idea that profile-building is fine.

These advertisers nowadays think they have they are entitled to everything, and Firefox just helped them.