Joel Armia scored two goals and had two assists before leaving late in the third period with a concussion, and Jake Allen made 14 saves in his second start for the Canadiens (3-0-2), who lost 6-5 in the shootout to the Canucks on Wednesday.
"[Toffoli] is playing really well right now," said forward Nick Suzuki, who had an assist and has a point in all five games this season (one goal, four assists). "He's getting a ton of chances and burying most of them. It's a bit of a flashback to last night, but it's good to get a win tonight."
Bo Horvat scored two goals for the second straight game, and Thatcher Demko made 35 saves for the Canucks (2-4-0), who have lost four of the past five games.
"We've got to figure it out within our dressing room and buy in," Horvat said. "It's a long year, we have another game against these guys, and we're going to try to win this miniseries."