No, I mean you, Arifin -- I want to sell you the Brooklyn Bridge! It's an old joke -- see Wikipedia:
References to "selling the Brooklyn Bridge" abound in American culture, sometimes as examples of rural gullibility but more often in connection with an idea that strains credulity. For example, "If you believe that, I have a wonderful bargain for you…"
http://en.wikipedia.org/wiki/Brooklyn_Bridge
I don't think you realized that Mack's post was a joke, b/c you were discussing how to install FF on a user's computer. If you think that was for real, then I have a bridge I'd like to sell you. Get it
;D