The 20-year-old has signed a pre-contract to join Neil Lennon's side on a four-year deal from Fram Reykjavik in 2014.
This month Fridjonsson joined his new team-mates in training following the end of the Icelandic season and that has allowed him to get used to his new surroundings before the big move.
He knows he will have to work on his game to prosper in the Premiership but hopes he can soon get up to speed with the SPFL style.
"It´s a huge difference being here compared to Iceland, so it will take time, but hopefully not too long," he said. "I'm used to training in the afternoon, not the morning, and being professional is different so it will take time before the fans see me at my best, but hopefully that's just a short time.
"It is more intense here, the tempo is a lot quicker. You have to think fast and the physical side is better too. This is a professional league so that is the main difference. Every player is better."
The 6ft 3ins hitman scored 12 goals in 23 appearances for Fram last season and, naturally, is good in the air.
However, he is also comfortable on the deck and believes the Scottish game is one that will compliment his style of football.
"I'm training with my new team-mates every day so I think it will come quickly," he told www.celticfc.net
"I like how we play with a lot of crosses so hopefully I can get into the box a lot.
"I am a big, tall striker and I can hold up the ball. I am good in the air, I have good technique."
Fridhjonsson - who could feature in the New Year's Day meeting with Partick Thistle - is looking forward to the support of the Hoops faithful after being introduced to the fans at Parkhead last week.
"The reception was great and I was really happy," he said. "I will be nervous for my first game but I'm excited.
"I will be ready to play from the first and it is my aim to get into the team."