A crew from Stafford were called to a house on Mynors Street in Littleworth, Stafford at 11.15pm on Halloween evening, following reports a firework had been pushed through the letterbox.
"The consequences of this type of irresponsible action could have resulted in a death or serious injury."
Stafford Assistant Area Commander, Paul Richins
Staffordshire Police were also in attendance at the incident, which has caused minor damage to the kitchen of the property.
Stafford Assistant Area Commander, Paul Richins said: "Luckily, the occupants were awake at the time of the incident and were able to extinguish the small fire that the firework had started.
"A lit firework was pushed through the letterbox and landed in the kitchen which set fire to a pack of toilet rolls. The occupants could have found themselves with no means of escape had the fire developed or if the occupants had been asleep.
"The consequences of this type of irresponsible action could have resulted in a death or serious injury, fireworks must be used appropriately at all times – they can fatally injure people if not used responsibly."
Staffordshire Fire and Rescue Service are currently visiting schools across the county as part of the Operation Good Guy campaign to give presentations and demonstrations on fireworks to show just how dangerous they can be.
Paul added: "Operation Good Guy is a timely reminder to children and young people to think about the dangers of fireworks in the hope they can develop a healthy respect for fireworks and be safe at all times."
Staffordshire Police are investigating the incident and anyone with information is asked to contact Staffordshire Police on 0300 123 44 55 quoting incident number 938 of 31 October or alternatively people can contact Crimestoppers anonymously on 0800 555 111.
Crews left the incident at 11.40pm and returned to the property the following day to carry out a free Home Fire Risk Check. The property had no working smoke alarms so new ones have now been fitted and Staffordshire Fire and Rescue Service encourage people to test their smoke alarms weekly to ensure they work.