Hall went to the top left corner to block Collen Warner's right-footed shot from the right side of the box and then made a diving save on Justin Mapp's shot from outside the box in the 92nd minute to preserve TFC's point.
Toronto (5-20-8) finished its 2012 home schedule with a 3-9-5 record while extending its winless streak to 13 games.
Sanna Nyassi -- who received a yellow card and a suspension for Montreal's season finale -- launched one of four shots for the Impact (12-15-6).
Gal Gadot cast as Wonder Woman for 'Batman vs. Superman'
Exploding whale video goes viral on Internet