You Do Need power plug adapter while traveling from Switzerland to Mozambique.

Here is Why You Need An Adapter

The outlet and plug type used in Mozambique are C, F and M and in Switzerland are C and J. This is how they look like.

Switzerland

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

Type C

Type J

Mozambique

In Mozambique, outlets of type C, F and M are in use.

Type C

Type F

Type M