You Do Need power plug adapter while traveling from Uzbekistan to French Guiana.

Here is Why You Need An Adapter

The outlet and plug type used in French Guiana are C, D and E and in Uzbekistan are C and F. This is how they look like.

Uzbekistan

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

Type C

Type F

French Guiana

In French Guiana, outlets of type C, D and E are in use.

Type C

Type D

Type E