With pmadb database configured, phpMyAdmin supports "going-up", "FK >> PK" in Browse mode.
Values in every Foreign Key column are links for viewing the record with corresponding Primary Key.
The suggestion is to realize also going in reverse direction - "down" in this hierarchy.
If the table contains PK constraints, let's add new icon near "pen" (b_edit.png) to every record & to the bottom of the Browse page.
If the table contains only one PK, this new icon should be a link to Browse page with FK-table filtered by clicked PK.
To browse FK-rows attached to a group of PKs, user may mark rows with that PKs & click icon at the bottom of the page.
Otherwise (the table contains several PKs) let's add a little menu dropping-down from new icon on hover or on click.
So user can click icon & select which FK-table to browse.