Florida allows felons to vote if the state the felony conviction occurred in allows felons to vote. New York allows felons to vote, thus Florida allows him to vote.
In the US, it depends on which state and certain conditions. Only two states, Maine and Vermont, will allow felons to vote, even while incarcerated. The link below has a good summary.
Florida follows the laws of the state where he was convicted so he would only be unable to vote while incarcerated, which won't happen because he is never punished for anything.