Index
you need to implement this interface to accept callbacks after using nsidomgeolocation.watchposition().
... 670 nsigsettingsservice interfaces, interfaces:scriptable, needscontent implemented by: @mozilla.org/gsettings-service;1 as a service: 671 nsigeolocationprovider dom, geolocation, interfaces, interfaces:scriptable, xpcom, xpcom interface reference this must be called on the main thread interface provides location information to the nsgeolocator via the nsidomgeolocationcallback interface.

nsIDOMGeoPositionCallback
you need to implement this interface to accept callbacks after using nsidomgeolocation.watchposition().

nsIGeolocationProvider
1.0 66 introduced gecko 1.9.1 inherits from: nsisupports last changed in gecko 1.9.2 (firefox 3.6 / thunderbird 3.1 / fennec 1.0) this must be called on the main thread interface provides location information to the nsgeolocator via the nsidomgeolocationcallback interface.