Striker Norris has scored five goals in six games including the crucial late winner against Fleetwood last week which did so much to lift the mood around the club after an awful start to the season.
The Brentford man will now remain with Town until 4 January after a deal was agreed with his parent club Brentford.
Winger Hackett aggravated a groin injury during the Fleetwood game but Aidy Boothroyd is confident he will be fit for the trip to the North East where Northampton have won just 5 times and drawn 5 times in their 29 previous visits.
Head To Head Record