I use a Firefox extension to protect me from CSRF attacks and tracking networks. It basically blocks all content from domains which do not not pertain to the p

I use a Firefox extension to protect me from CSRF attacks and tracking networks. It basically blocks all content from domains which do not not pertain to the page that I am reading. A side-effect of this is that it blocks most ads. The extension is frequently mistaken by many websites to be an ad blocker. I've no problem with ads per se, I realise that they are often important for funding a website. What I have a problem with is that the overwhelming majority of ads on the internet come from networks that are used for tracking. I don't think I'm alone. I wonder what percentage people use ad blockers primarily for privacy purposes. In a perfect world, websites would implement their own way of displaying ads that doesn't rely on ad networks. This would make ads much harder to block, websites could potentially take 100% of the ad revenue, privacy advocates would be much happier and there would be less incentive for anyone to develop or use ad blockers.