Saints full back Stelios Demetriou was delighted to get the Ladbrokes Championship campaign off to a winning start and thanked the supporters for the role they played in driving on the team.
The Buddies were dealt an early blow when Nathan Austin opened the scoring for Falkirk after two minutes.
But Cypriot Stelios was on hand to level for St Mirren as he latched on to Gavin Reilly's ball across before firing past Bairns keeper Robbie Thomson on 33 minutes.
Cammy Smith and Reilly would then go on to score second half goals to secure an opening day triumph against one of the league's promotion contenders.
It was great," Stelios told stmirren.com.
"We all know our target this season is to be up at the top of the league and that all starts with the home games. It was a good beginning.
"I think since I joined in January that we don't care who the opponent is, especially at the Paisley 2021 Stadium.
"We'll play any opponent with the same passion and the same desire for three points and nothing less.
"I thought something was going wrong in the first minutes. Maybe it was just the stress of the first game but that is not an excuse. We have to find the solution to stop conceding early goals.
"But my goal, the best thing a player can do is to score a goal for his team and especially in front of this crowd it's the best feeling.
"The manager told us he was happy that after the first 15 minutes we showed we were the better team. We had the second half in front of us to go and win the game.
"Every game we are going to go for the win. Sometimes we are going to be behind, sometimes we are going to be in front. We are going to have to find the strength and the power to turn around games like we did today."
There was a 4639 strong crowd at the Paisley 2021 Stadium on Saturday - the highest attendance for any match in Scotland out with the Ladbrokes Premiership.
And Stelios admits the vocal support from the Paisley loyal was massive in helping the team to victory.
They are our 12th player," he said.
"They showed from last season that they are by our side. Hopefully we can give them more happiness this season.
"I want them to stay by our side and we'll give them our best on the park."
The Buddies' attention now turns to Saturday's match at Cappielow against Renfrewshire rivals Morton.
Stelios scored the first goal in a 4-1 win for the side in the last derby and while he is excited to play in another he admits all focus is on trying to gain another three points.
We are going to work on the opponents type of play.
"I know it's a derby but we approach it as another game and look to get the win."
