For many Firefox users, they do not have access to a
device that can provide a location such as a GPS, a
Wifi->location service, etc.  For these uses, it may be
enough to let them set there location in some UI.  I
created an addon for Firefox (nightlies) that both
enables a UI for Firefox, but also allows the user to
set their location [2].

Clearly this isn't the complete story, of course.  Many
of us have laptops and all of which have wifi.  And
there are very good Wifi->location providers available.
  GPSs are getting cheaper, and they are available
everywhere.  Not taking advantage of these devices
seems to miss the point.  So, the implementation has a
plugable nature such that 3rd parties can drop in a
component, and ta-da, it just works.  For example, I
created a NMEA extension that provides the glue needed
between most gps devices and firefox [3].

  I would love to be able to get the UI support in
Firefox.  This would allow the "extension" to be more
or less the glue between a geolocation device and
mozilla.  We do not have to do the fancy "user defined
position" stuff in the extension, just some info bar
UI... something like [5]

Does this seem like the right approach to everyone?