Bart Jones was a hard working employee of the nuclear industry, a job that kept him and his family moving around the country. Although he was widowed, he had help from his elderly mother to raise his thirteen-year-old daughter Angelica. The two would often disagree over how to treat Angelica, with her "Nana" trying to raise her spirits and convince her that she was special, and her "Daddy" trying to be more realistic. Moving around the country had been difficult on Nana's health and Angelica's ability to make friends.
After their last move, Angel found it more difficult than ever to make new friends. The local girls were initially spiteful, and became exceptionally jealous when the most popular boy in school began to show a romantic interest in Angel. Their taunting in the school cafeteria caused her to subconsciously over-heat her carton of chocolate milk, which subsequently exploded over a teacher and landed her in detention. They later destroyed her entry for the school's ice-sculpting competition, the anger and pain of which caused Angel's powers to melt all the other entries. Terrified, she ran to a public telephone to try and speak to her Nana. However, Angel panicked when Nana didn't answer the phone, causing the telephone to melt in her hands. Scared, hurt, and confused, Angelica ran home to discover an ambulance there. It transpired that on the day that Angelica's mutant powers manifested, her Nana had passed away from a heart attack.
Angelica kept her powers a secret, for fear of being further outcast in a society that lived in fear of dangerous mutants. She chose to reveal her secret to her father after her Nana's funeral. In the snow covered cemetery Bart Jones refused to listen to his daughter's claims that she was "special" until she began to glow and the snow around her began to melt. Her father was just a working class man who had nothing to do with the political implications of mutants in society, but he was scared of what his little girl was growing into.
With the Superhuman Registration Act signed into law, Angelica chose to give up being Firestar. She feared the harm that could come to her family if her identity was revealed and worried about how she could be exploited. She chose to focus on her studies, tossing her mask away in the street.
Despite being in semi-retirement, Angelica became friends with Black Cat, Hellcat, and Spectrum. Together, they would go shopping, do lunch and enjoy spa treatments in New York. Angelica continued to work hard at college and would catch up with her friends in her spare time.
source: http://www.angelfire.com/comics/benriely/
http://marvel.wikia.com/Angelica_Jones_%28Earth-616%29
http://www.comicvine.com/firestar/4005-2101/