Falkirk remain bottom of the table after St Mirren came from behind to secure a 3-1 win away from home.
St Mirren come from behind to secure the points
Falkirk remain at the bottom of the SPL table after St Mirren came from behind to secure a 3-1 win away from home.
Substitute Alex MacDonald put Falkirk ahead after 55 minutes before St Mirren levelled midway through the second half through Craig Dargo.
Billy Mehmet put the visitors ahead on 71 minutes and the points were made safe by Tom Brighton's goal two minutes from time.
An unchanged St Mirren kept their hosts hemmed in for much of the opening quarter. Saints were causing Falkirk problems with some measured build-up play down the right and Dargo headed straight at Robert Olejnik from a Jack Ross cross.
Dargo had another chance after John Potter flicked on Andy Dorman's corner, but Jackie McNamara got a crucial touch before the Saints striker headed at Olejnik from close range.
Ryan Flynn had a volley comfortably held from a tight angle at the other end and Falkirk began to improve after the right winger swapped places with Danijel Marceta, who had started in a central role.
Vitor Lima and Marceta both shot just over from 25 yards after some sharp passing and a more direct approach almost paid dividends when Potter misjudged Twaddle's long ball. However, Paul Gallacher was fully behind Finnigan's volley from 15 yards.
MacDonald impact
Finnigan was replaced by Mark Stewart after tangling with Hugh Murray, earlier booked for a foul on Flynn, as the players contested a loose ball.
St Mirren were awarded the free-kick and eventually worked the ball out to Ross, whose powerful 25-yard drive was well held by the diving Olejnik.
Scott Arfield, who has been troubled by an ankle injury recently, was replaced by MacDonald in the 54th minute and the on-loan Burnley forward was celebrating within 60 seconds.
The substitute headed Twaddle's deep corner off the underside of the bar and Ross failed to clear before McLean nudged the ball into the back of the net.
MacDonald claimed the goal - Falkirk's first in six games - but the defender may have got the crucial touch.
St Mirren, with Allan Johnston on, pushed forward and Dargo netted from a tight angle despite Olejnik's attempts to save after Dorman and Stephen McGinn had worked a short corner towards the back post.
Dargo turned provider as Saints took the lead four minutes later. The striker did well to cross from the right wing and, although Olejnik saved brilliantly from Dorman's header, Mehmet turned home the rebound from six yards.
Dargo injured his shoulder as he fell following the cross and was instantly replaced by Brighton.
Falkirk's comeback attempts lacked conviction and Brighton made sure of the victory in the 88th minute with his first St Mirren goal.
Olejnik could only palm the ball into the path of Brighton as he and Jackie McNamara both tried to clear Dorman's driven cross, and the former Millwall striker lashed it into the roof of the net.
