Festivalen blev planlagt fra 13 jun til 17 jun 2018 (4 dag(e)).
Firefly Music Festival finder sted i Dover, United Kingdom. Her er den fulde adresse på festivalen: The Woodlands of Dover International Speedway, Dover
Arctic Monkeys, Eminem, Chase Atlantic, The Killers, Lewis Capaldi, Kendrick Lamar, Lizzo, SZA, Lauv, Martin Garrix.
De mest populære genrer og undergenrer i den foregående udgave var:
rock
pop
electronic
indie
alternative
indie pop
indie rock
alternative rock
electronica
dance
electropop
psychedelic
psychedelic rock
house
indietronica
art rock
blues rock
britpop
garage rock