The map, based on the crime map launched by the Metropolitan Police two years ago, is part of a PR drive to highlight the brigade's activities and educate Londoners.
It was launched on the brigade's new Facebook page and lets users enter their postcode to keep track of fires in their area. Red areas show fire and arson hot spots, while the blue and purple colours show low areas for fire-related incidents.
London Fire Brigade senior comms officer Emma Cullen said: 'All of the design, content and PR was done in-house by our comms team and is part of our social media campaign to educate Londoners on the types of incidents we cover. We hope that the map will encourage and educate residents, businesses and councils in places with a higher number of incidents to take action to make their area safer."
The map found Croydon in south London had the most serious fires and arson attacks in the past year. The campaign resulted in 12 news stories in London, including the Evening Standard, BBC London TV and radio and ITV's London Tonight, as well as national coverage on iPaper and BBC Online and international coverage.