Dubinsky staked the Rangers to a 1-0 lead in the first period, scoring for the first time in 17 games – dating to Nov. 11 – and Gaborik and Michael Del Zotto connected in the second for New York, which has won three in a row.
The Rangers got off to a good start in their back-to-back games against Atlantic Division rivals, and will look to complete the sweep Friday when they host Winter Classic foe Philadelphia in a matchup for first place.
Biron recorded 24 saves for the Rangers.
MAPLE LEAFS 3, SABRES 2
In Toronto, Nazem Kadri scored the tiebreaking goal in the third period to lead Toronto.
David Steckel and Phil Kessel also scored for Toronto and James Reimer had 40 saves.
Kadri, recalled from Toronto of the AHL on Wednesday, got his first goal of the season when he scored off Buffalo goalie Ryan Miller’s glove at 5:52 of the third.
Jason Pominville and Derek Roy scored for the Sabres.
SENATORS 4, PANTHERS 3 (OT)
In Ottawa, Bobby Butler scored 2:02 into overtime and the Senators beat Florida for their third consecutive win.
Daniel Alfredsson scored his 399th goal and had two assists for Ottawa, which gave up leads of 1-0, 2-1, and 3-2. Chris Neil and Erik Karlsson each had a goal and an assist, and Craig Anderson made 32 saves.
Tomas Kopecky drew Florida even at 3 when he scored the tying goal with 1:12 left in the third and goalie Scott Clemmensen pulled for an extra attacker.