You Do Need power plug adapter while traveling from Gibraltar to Côte d'Ivoire (Ivory Coast).

Here is Why You Need An Adapter

The outlet and plug type used in Côte d'Ivoire (Ivory Coast) are C and E and in Gibraltar is G. This is how they look like.

Gibraltar

In Gibraltar, outlets of type G are in use.

Type G

Côte d'Ivoire (Ivory Coast)

In Côte d'Ivoire (Ivory Coast), outlets of type C and E are in use.

Type C

Type E