The ornamental design for a liftfronthood, as shown and described.
FIG. 1 is a perspective view of the lift front hood according to the invention;
FIG. 2 is a front view thereof;
FIG. 3 is a rear view thereof;
FIG. 4 is a left-side view thereof, the right-side view being a mirror image thereof;
FIG. 5 is a top view thereof;
FIG. 6 is a bottom view thereof;
FIG. 7 is a perspective view thereof, showing a safety helmet in broken lines for context; and,
FIG. 8 is a left-side view thereof showing the bracket for face shield in retracted or stowed position with respect to a safety helmet.
The broken lines shown in the drawings represent the safety helmet and portions of the connector to the helmet that form no part of the claimed design.