The ornamental design for a tilefiresuppressantball, as shown and described.
FIG. 1 is a front perspective view of a tile fire suppressant ball showing my new design; and,
FIG. 2 is a top perspective view thereof.
All sides of FIGS. 1 and 2 not shown form no part of the claim design. The broken lines shown in the drawings represent portions of the tile fire suppressant ball, that form no part of the claimed design.