No, the mass does not change.
Freezing is a change in physical state, not a chemical reaction. No matter is added or taken away.
As water transitions to ice, no molecules are lost; it is boiling so it is not turning into a gas. There is a very, very small amount of mass lost in the form of energy as the water loses it's heat, but this amount of mass is so insignificant it practically can't be measured. In other words, it's negligible.