Born in Schwarzach im Pongau, Salzburg, Fischbacher now lives in Eben im Pongau. She made her World Cup debut in March 2004 in Sestriere, Italy, where she would claim her first World Cup victory four years later, a dead-heat tie with Fabienne Suter. Fischbacher competed for Austria at the Winter Olympics in 2006 and again in 2010, where she won the gold medal in the Super-G, ahead of Tina Maze and Lindsey Vonn. In the Downhill on February 17, she finished 4th, missing the bronze medal by 0.03 seconds.