Desharnais scored the tying goal with 37 seconds left in the third period and added a goal in the shootout and the Montreal Canadiens rallied for a 4-3 victory over the Devils.
Desharnais' tying goal in the third was reviewed by the NHL to see if he had lifted his stick too high in redirecting the slap shot taken by teammate Brian Gionta.
DeSharnais had two assists against the Devils on Tuesday.
He has two goals and six assists in his last seven games.
Desharnais had a goal with an assist Wednesday.
Desharnais scored his second in three games after failing to score in his first 20 games of the season.
Desharnais scored the only goal in the shootout and Peter Budaj stopped all three shots he faced in the tiebreaker to lead the Montreal Canadiens to a 3-2 victory over the Columbus Blue Jackets on Friday night.
He has no regulation goals in 18 games this season.