Is it safe to use stuffing that has been in the freezer for 9-10 months?

No, it is not safe to use stuffing that has been in the freezer for 9-10 months. The USDA recommends that cooked stuffing be discarded after 2 months in the freezer, and uncooked stuffing should be discarded after 1 month in the freezer. After this amount of time, the quality and safety of the stuffing may decline and could lead to potential foodborne illness. It is always better to err on the side of caution when it comes to food safety.