Ljungberg, who won two Premier League titles and three FA Cups at Arsenal as a player, was named interim manager at the Emirates on Friday after Emery sacked.
Emery took Arsenal to the Europa League final last season but results had drastically dipped this term and the Spaniard leaves north London with the team just ninth in the Premier League.
Arsenal are willing to take their time before appointing Emery’s permanent successor, with the likes of Mauricio Pochettino, Max Allegri, Patrick Vieira and Brendan Rodgers being linked with the job.
But Arsenal legend Pires insists Ljungberg is ‘capable of staying’ at Arsenal as their full-time boss and has predicted the style of football he will attempt to produce.
‘When he [Ljungberg] was a player, he liked to speak up, he always had something to say, especially when we were in bad moments,’ Pires said.
‘I think that he is capable of taking on the challenge. He knows that from tomorrow onwards it is going to be difficult, away to Norwich.
‘Now he is going to try to implement his style of football, his philosophy, which is by the way the philosophy that he learnt when he was an Arsenal player.
‘And after that, a manager purely depends on his players. He is capable of staying.
‘What I think is good as well is that football needs new faces, freshness.
‘Freddie, a bit like, Steven Gerrard or Frank Lampard, are good coaches and I hope for Freddie that he stays in that role for as long as possible.’
Speaking about his new role at Arsenal for the first time, Ljungberg said: ‘It’s a great, great honour.
‘I want to do as well as I can for this fantastic club and that’s what I feel today. I feel excitement and I’ll try to do a good job.’
Asked whether he could become Arsenal’s permanent manager, Ljungberg added: ‘For the moment it’s for the future of the football club.
‘I’m here to help the club as much as I possibly can and try to get a good atmosphere around the club and with the fans and that’s what I’m focusing on at the moment and then we’ll see.’