>- it was on by default. You shouldn't have to 'opt-out' of invasive surveillance.

Conmppanies did not liked when IE did this but I think the solution would be simple, when you start the browser for the first time you will be asked if you want to get tracked or not, you will have 2 big buttons to chose.

Then FB. Google and others should ask the users to switch this because they want to track you on a different website and explain to the users why.