Festivalen blev planlagt fra 19 jun til 22 jun 2014 (3 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, Imagine Dragons, The Lumineers, twenty one pilots, Foo Fighters, Weezer, Martin Garrix, Kodaline, Third Eye Blind, Cage the Elephant, Vance Joy, Band of Horses, Jack Johnson, Young the Giant, Ziggy Marley.
De mest populære genrer og undergenrer i den foregående udgave var:
rock
pop
folk
indie rock
indie
alternative rock
indie pop
alternative
pop rock
electronica
indie folk
acoustic
electropop
americana
dance
electro
experimental
alternative dance
folk rock