===All your devices recognize you and enable access to your ID-attached services===
Meta: {{bug|746383}}
* <del>{{defer|P1: Native login to "browser" for Desktop and Mobile (Android and B2G) {{bug|749070}} and {{bug|749072}}</del>}}
** We're cutting Desktop Sign In To The Browser for K90.
* <del>{{defer|P1: Must have a mechanism to enable sign out. {{bug|749070}} and {{bug|749072}}</del>}}
** We're cutting Desktop Sign In To The Browser for K90.
* P1: ID attached services and clients:
** P1: Apps
** Everything else is P2 (this includes browser data such as bookmarks, passwords, tabs etc).
* {{defer|P2: After sign in to the browser, sign in to (browserID supporting) websites does not require additional sign-in.}}
* P3: Native DOM bindings for sign into website [Because the pop-up will work anyway]