Firefighters responded to the Bergenfield residence around 7:40 a.m. Sunday and battled the three-alarm blaze for about 90 minutes before it was brought under control.
It's not yet known what sparked the fire, which severely damaged the Cape Cody style home.
Bergenfield Fire Chief Michael Lopez tells The Record (http://bit.ly/18JrpfE) that the firefighter was being treated for heat exhaustion.
But details on the woman and her injuries were not disclosed.
Police roped off the block surrounding the home and remained on the scene Sunday afternoon.