I think FF should implement an add-blocker which allows me to say which adds I like and which I don't. Many important services like news-papers can only surviv

I think FF should implement an add-blocker which allows me to say which adds I like and which I don't. Many important services like news-papers can only survive if they get add-revenue. They also contain adds in their print-edition and people still subscribe to them. So I don't mind adds in general just adds which have no relevance to me.