The ornamental design for a handle for firepitdoor, as shown and described.
FIG. 1 is a top, front and right side perspective view od a handle for a fire pit door showing my new design, the undisclosed portions are not part of the claimed design.
FIG. 2 is a top, rear and left side perspective view thereof;
FIG. 3 is a bottom, rear and left side perspective view thereof; and,
FIG. 4 is a bottom, front and right side perspective view thereof.