Moore, 29, has 8 goals and 9 assists for 17 points in 48 games for Florida. He signed with the Panthers as a free agent just before the start of the season.
The Canadiens will be Moore's seventh NHL team, and this marks the third year in a row that he's has changed teams in midseason. He was claimed off waivers from Minnesota by Toronto in 2007-08, and was traded from Toronto to Buffalo at last season's trade deadline.
Moore was originally drafted by the New York Rangers in the third round in 2000.
We want to make sure that whoever makes our team really makes our team by earning it and not putting them in situations where they get preference because of their status as a first-round pick or whatever it might be. That's not going to happen. Everybody has to earn their way on our team.
— Columbus Blue Jackets general manager Jarmo Kekalainen on the team's prospects at development camp