I claim the ornamental design for a fire lighter, as shown and described.
FIG. 1 shows an isometric view from above of a fire lighter in an expanded state;
FIG. 1A shows detail thereof;
FIG. 2 shows a side elevation view thereof;
FIG. 2A shows additional detail thereof;
FIG. 3 shows a top plan view thereof; and
FIG. 4 shows a bottom plan view thereof.
FIG. 5 shows an isometric view from above of the fire lighter of FIGS. 1-4 shown in a collapsed state;
FIG. 6 shows a side elevation thereof;
FIG. 7 shows a top plan view thereof; and,
FIG. 8 shows a bottom plan view thereof.
The circle drawn in broken line in the center of the design represents a portion of the fire lighter that forms no part of the claimed design. All other broken lines represent environmental subject matter that forms no part of the claimed design.