The Liverpool pair were in the Selecao starting XI for the tournament finale in Rio de Janeiro, where goals from Everton and Gabriel Jesus sandwiched a Paolo Guerrero penalty in the first half.
Richarlison’s last-minute spot-kick secured the trophy for the jubilant host nation – Brazil’s first Copa America triumph since 2007.
For Alisson and Firmino the victory brought their second major honour within six weeks, following Liverpool’s Champions League success on June 1.
Alisson played the whole of the match while Firmino was substituted with a quarter of an hour remaining as Tite’s side sought to preserve their lead once Jesus was shown a red card midway through the second half.