Tap down any loose or exposed brads holding the wood molding to the door around the glass.
How to fix a oval glass plastic door molding.
Should you need to stain the repair or the entire fiberglass door consider minwax gel stain.
3 cut the tip off a tube of clear silicone glue using a craft knife.
If you choose repair over replace try fixing the damage with j b weld waterweld epoxy putty.
Use a nailset and a hammer.
Do all four sides.
When the molding lifts up 1 4 inch move the screwdriver to the next side.
How to replace the oval glass in an entry door.
Insert the tip of a putty knife between the molding and the frame of the door.
Lay the tip flat on the glass and push the tip of it under the molding rock it back and forth if necessary to get the tip to penetrate under it.
It is rated for application onto fiberglass and other plastic surfaces.