FIG. 1 is a top, front and right side perspective view of a front bumper for an automobile showing my new design;

FIG. 2 is a bottom, front and left side perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof; and

FIG. 7 is a top plan view thereof; and,

FIG. 8 is a bottom plan view thereof.

The broken line showing of the front bumper for an automobile is for purpose of illustrating environmental structure and forms no part of the claimed design.