YouTube in June confirmed that it was disabling videos for users with ad blockers. At that time, it was only a "small experiment globally". YouTube introduced unskippable 30-second ads to its TV app in May and later began experimenting with longer but less frequent ad breaks on TV, too. 📲 YouTube Doubles Efforts To Crack Down Users With Ad Blockers Globally, Issues Warning To Turn Off Ad Blockers or Buy USD 14 Premium Subscription.