Assuming my friend has a webpage and wants me to take look at it, or he is offering a webshop and knows my IP, or my notable User Agent. Or that I have an ATI F

Assuming my friend has a webpage and wants me to take look at it, or he is offering a webshop and knows my IP, or my notable User Agent. Or that I have an ATI FireGL graphics card installed, which is something which JS can query. He just asks me to visit a server he controls. Will he now be able to query a list of properties of my personality? Interested in space, in biking, according to my Google Ad Settings also in Fujian, for whichever reason that is unknown to me?