First crush the dried strawberries into a powder. You can accomplish this with a food process, but the easiest way is to but the strawberries in a plastic zip-loc bag and roll a rolling pin on the strawberries until completely crushed into powder.
Next, in a large bowl, beat together the room temperature butter and powdered sugar until creamed together.
Then, add the vanilla, salt, heavy cream, and strawberry powder and beat until thoroughly mixed.
Adjust the frosting to your preference by adding additional sugar to thicken or sweeten or additional heavy cream for a thinner frosting.