Mozilla has a petition asking Facebook to stop tracking people's browsing off the site unless they opt in to it. Frankly I think the solution is to remove the ability to track people across sites from the web entirely, but I signed the petition anyway. Facebook has taken a huge hit to their reputation, so now is a good time to be putting pressure on them to change their ways.
@seanl Technically, how could this capability be removed?
@woozle If you mean in terms changes to web standards, I guess it would have to involve dramatic reduction in the functionality of third party content requests. Maybe make all third party content "click to load". Doesn't stop tracking from the backend, but it makes it more expensive. And you don't have to make it that much more expensive before it's just not worth it anymore.