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