Security for the user is obviously what we are talking about. Regular people do not have the knowledge or patience to make informed decisions regarding their technical security; any model that relies on that is going to fail because people will click whatever they need to make stuff work. Even people who do understand the technology do stuff like disabling SSL verification, rather than going through the effort of adding the new CA to their cert list.

Firefox is not doing the same as Chrome. Firefox is adding a feature to disable unverified add-ons on particular domains to stop attacks from malicious add-ons. Chrome is adding a feature that tracks the sites you visit and shares them with other sites to improve ad tracking.

How are these features comparable at all?