German tabloid Bild is the latest to announce it will prevent users who have installed the advert-hiding plug-ins from viewing its articles.
It joins dozens of other sites who object to the technology’s threat to their income.
Users have flocked to the extensions to speed up page-load times and reduce the toll on their mobile devices’ battery life.
Apple’s recent move to start supporting ad-blockers on its iPhones and iPads has brought the matter to the fore.
But other tech companies are trying to convince users there is a way to live with ads, by making them less frustrating.