The Panthers, who lead the best-of-seven set 3-0, would advance with a home win on Wednesday.
Florida also got goals from Anthony Duclair and Carter Verhaeghe, and Aaron Ekblad had two assists.
Maple Leafs goalie Ilya Samsonov, who stopped eight shots and allowed no goals, was injured 37 seconds into the second period.
Kraken 7, Stars 2Matty Beniers, Alex Wennberg, Eeli Tolvanen and Justin Schultz each had a goal and an assist as Seattle defeated visiting Dallas in Game 3 of their Western Conference semifinal series.
Five different players scored second-period goals for the Kraken, who took a 2-1 lead in the best-of-seven series.