Keep in mind that adhesive is a more permanent solution.
How to hang wall mirrors on doors.
How to hang a door mirror method 1 of 3.
Slip an over the door hanging hook over the top edge of the door.
If the back of the mirror has a pair of d rings and no wire.
Screw 2 plastic mirror clips along the bottom edge line.
Hold the mirror at the approximate height you want it on the door.
It will damage your wall and likely your mirror if you try to.
In addition to picking the right weight capacity the length of the hollow wall anchor is important because the bolt must extend beyond the wall so it can expand behind it.
If you re hanging a heavy mirror on plaster without a stud your best bet is a hollow wall anchor such as a toggle bolt that expands and secures behind the plaster wall.
Mark the location of the top edge and the center of the frame.
Hold the mirror against the wall at the desired position.
Place a scrap piece of wood that is approximately half as long as the mirror is wide underneath the hanging wire on back.
2 hang the wire on the back of the mirror over the hook on the door.
Mounting the mirror on the door.