Hi I am using mozilla browser as a default browser and since last few days I can not watch videos on youtube, every time I try to play a video this is what comes up on the screen "ad block violate youtube's terms of service" Can you please let me know how to solve this issue. I try to find solution online but there's nothing for firefox browser but there's few videos which shows to rectify this issue. Please help me. kind regards yours sincerely Barkath