I just pulled up the Firenze Card website to check something for a member, and this notice popped up:
"We would like to inform you that the workers of the additional services of the state museums, who manage also the ticket offices, have proclaimed for next 4th and 5th April a strike. This could cause some inconveniences and total or partial closure of the museums. We apologize for any inconvenience this may cause you!"
I haven't been able to determine if this affects ALL Italian state museums across the country so if anyone sees that information, please share?