One of his scores was a go-ahead touchdown on a pass from Jamie Martin in the fourth quarter.
Jackson had 25 attempts, including one for 51 yards. He added two catches for 21 yards.
Martin was 13-of-21 passing for 200 yards, two touchdowns and three interceptions. Marshall Faulk, who had six carries for 23 yards, has 12,129 yards for his career, surpassing Franco Harris (12,120) for 10th place all-time list.
The Jaguars dropped to 4-3.
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