Festival dijadwalkan dari 19 Jun hingga 22 Jun 2014 (3 hari).
Firefly Music Festival berlangsung di Dover, United Kingdom. Berikut adalah alamat lengkap festival: 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.
Genre dan sub-genre yang paling populer dari edisi sebelumnya adalah:
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