The ornamental design for a double femalesocketextensiontool, as shown and described.
FIG. 1 is a perspective view of the double female socket extension tool illustrating a top female socket;
FIG. 2 is a side view of the double female socket extension tool of FIG. 1; and,
FIG. 3 is a bottom view of the double female socket extension tool of FIG. 1 illustrating a bottom female socket identical to the top female socket illustrated in FIG. 1.