Have you checked your Facebook account.. do u find something irrelevant on it.. is that a ad about Cryptocurrency ICO... Ohhh yes another ad about Cryptocurrency..
Now a days facebook is filled with cryptocurrency ads and not only this when ever u scroll to another page it follows you and you find the same ad on another page.. buy finallly Facebook has decided to remove all these ads...
So cheers and keep using Facebook and stay connected to your friends and family....