Montreal went 2 for 4 on the power play, while New Jersey failed to score on three chances with the man advantage.
Pacioretty beat Brodeur on the glove-side 2:22 into the second and Ryder tied it 1:43 later with a high floater from the blue-line that went off Price and in.
Pacioretty got his second goal when he beat Brodeur with a backhander at 8:32 of the middle frame.
Larsson tied it again on a deflected shot from the point with 3:23 left in the second.
White deflected Jarred Tinordi's shot past Brodeur for the winner.