Boruc has previously been linked with moves to Arsenal and AC Milan.
He said: “It is a great club to play for. Everybody knows how passionate the supporters and players are to win the league, so it is really good to be here. I am still really enjoying it.”
He added on a possible transfer: “I don’t know. We will see. I am not thinking about changing clubs.
“I am quite focused on Celtic just now. If they were to come up with a new contract, I would think about that.”