Viviano has been outstanding for the Viola this season.
"I think that Fiorentina should confirm Viviano for next season," Gianmatteo Mareggini, a former Viola custodian, told Firenze Viola.
"The role of the goalkeeper is a particular one and it causes problems for a team if they bring in a new 'keeper every season.
"A goalkeeper needs time to find the right understanding with his defence and with the Coach," he continued.
"Look when I was at the club, a certain Francesco Toldo took a few years to mature. That is what Viviano is looking to do and he'll only get it by playing football."