Kyle Orton completed 8 out of 14 passes for 101 yards and a score in 17 degree weather for the Bears (6-9), who broke a three game losing streak.
Brian Urlacher recorded five tackles and returned an interception 85 yards for a touchdown for Chicago.
Brett Favre was just 17-of-32 passing with 153 yards for the Packers (12-3), who lost both games versus Chicago this season.
Ryan Grant also rushed for 100 yards on 14 carries and also had a 66-yard scoring run.
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