Then browsers should just download ALL background-url images beforehand

If a search directs me there or if there is some news that I really need to check. I have abandoned the account.

(adding up all the details of screen size, available fonts, language, os, etc, etc),

not if you just simply turn off javascript.

I hope that user agent will be gone too. It does nothing except demand that you install chrome or spy on you

cocoa?