DOME LIGHT STAYS ON

Hi CYRUS, I would check the dome light switch first. Make sure the right setting is being used. Normally it has 3 settings (1 - on always, 2 - on when door is open, 3 - off always). If the setting is on 2 and the problem still exists then check and/or replace the door jam switches. These exist in each door jam and switch the light on and off based on a whether the door is open or closed. Hope this helps!

How do you find the switch in door

The switch is probably part of the door latch, at least my other Fords were that way.