When he was 12, Firestone, along with Harold Peary, was in the cast of Wheatenaville , a program broadcast on NBC's Pacific network beginning September 26, 1932.

He wore a suit, bowtie, was clean shaven, had big round glasses and played a girl-shy, nerdy lab technician that works up his nerve to take Sally on a date.

Firestone appeared in several roles on the popular Western television series Bonanza, Hogan's Heroes, as well as in Walt Disney's feature film The Great Locomotive Chase.

Firestone is buried in Valhalla Memorial Park Cemetery in North Hollywood in Los Angeles, California.

[4] Demetria Fulton; previewed Firestone on Barnaby Jones in the episode titled “Trap Play”(01/07/1975).