Hi do you test it??? video not playing but windows still poop-up. all friends and family asking my for do that magic trick (kill noisy flickering ads what poop-up). After edit config is not noisy, is not flickering but still poop up. i test Firefox 70 and nighty it have switch in option but... is not do job, it kill only sound, not video and not poop-up. I think post directly to Mozilla but is to complicated....