The Real Betis wing-back enjoyed a breakthrough campaign last year, catching the eye of many top European clubs despite niggling injuries.
Both Liverpool and Barcelona have been considering moves for Firpo this summer, if reports in Spain are to be believed.
And Firpo, 22, has left the door open for a switch after being quizzed on his future.
He is about to embark on a short break after being part of the Euro U21 Championship-winning Spain team.
“I want to enjoy this success and the holidays, right now all the clubs are starting their pre-season and we are finishing it – when the summer is over I will sit down and talk about my future,” he told Diario AS.