Liljeberg is known to enjoy working with computers. She wrote for a Swedish newspaper Svenska Dagbladet for some time. Liljeberg also contributed to UNESCO's "Utrymme" anthology of twenty works from young writers around the world. Liljeberg now lives in Stockholm with her boyfriend Alexander Skepp. They have two children: Harry Theodor, born in June 2002 and Vera, born on 1 January, 2005. Liljeberg expressed a desire to work with director Lukas Moodysson again.