The ornamental design for fire extinguisher bracket, as shown and described.
FIG. 1 is a front perspective view of a fire extinguisher bracket according to principles of the present invention having a strap in the raised position;
FIG. 2 is a front view of the fire extinguisher bracket shown in FIG. 1;
FIG. 3 is a rear view of the fire extinguisher bracket shown in FIG. 1;
FIG. 4 is a top view of the fire extinguisher bracket shown in FIG. 1;
FIG. 5 is a bottom view of the fire extinguisher bracket shown in FIG. 1;
FIG. 6 is a right side view of the fire extinguisher bracket shown in FIG. 1;
FIG. 7 is a left side view of the fire extinguisher bracket shown in FIG. 1;
FIG. 8 is a cross-sectional view of the fire extinguisher bracket taken along line 8-8 of FIG. 4;
FIG. 9 is another cross-sectional view of the fire extinguisher bracket shown in FIG. 8, but with the strap in an alternate lowered position; and,
FIG. 10 is a reduced scale rear perspective view of the fire extinguisher bracket shown in FIG. 1, but with the strap shown in the alternate lowered position. The broken line showing of a fire extinguisher in this view is for illustrative purposes only and forms no part of the claimed design.