The ornamental design for a firenozzle, as shown and described.
FIG. 1 is a left side view of a fire nozzle showing my new design;
FIG. 2 is a right side view of the fire nozzle;
FIG. 3 is a rear view of the fire nozzle;
FIG. 4 is a front view of the fire nozzle;
FIG. 5 is an additional left side view of the fire nozzle;
FIG. 6 is an additional right side view of the fire nozzle; and,
FIG. 7 is a top front side perspective view of the fire nozzle.
The fire nozzle is shown with a break to indicate non-specified length. The appearance of any portion of the article between the break lines forms no part of the claimed design.