You Do Need power plug adapter while traveling from Liechtenstein to Morocco.

Here is Why You Need An Adapter

The outlet and plug type used in Morocco are C and E and in Liechtenstein are C and J. This is how they look like.

Liechtenstein

In Liechtenstein, outlets of type C and J are in use.

Type C

Type J

Morocco

In Morocco, outlets of type C and E are in use.

Type C

Type E