Are folkways and mores the same?

No, they are different. Folkway - Informal rules and norms whose violation is not offensive, but is expected to be followed. It's a kind of adjusting, accommodating type of habit. It does not invite any punishment or sanction, but some reprimands or warnings. Mores - The are also informal rule which are not written, but result in severe punishments and social sanctions upon the individuals; like social and religious exclusions. Taken from a university reading.