McNabb was a full participant in Friday's practice after sitting out all week with a chest contusion he sustained in the first half of last week's 15-6 win over Pittsburgh. He is questionable for Sunday's game.
Eagles coach Andy Reid said McNabb was able to make all the necessary throws in practice.
"During the practice, he felt good," Reid said.
However, the big question mark remains the health of Westbrook, Philadelphia's best playmaker.
Westbrook injured an ankle while hurdling a teammate in the Pittsburgh game. He sat out practice all week, but has said he plans on being ready to play.
"We'll see how he does here, over the next couple days," Reid said. "I mentioned before that it's going to go right to the wire there."
Westbrook gained a league-high 2,104 yards from scrimmage last season with 12 touchdowns. His production has tailed off this year as the Eagles have had success getting the ball down the field despite missing their two top receivers from last season, Kevin Curtis (sports hernia) and Reggie Brown (hamstring).
Brown returned to the lineup last week but played sparingly. Reid said he expects him to get more opportunities this week.
Curtis has returned to practice with the team but is listed as doubtful.