Festival dijadwalkan dari 21 Jun hingga 23 Jun 2013 (2 hari).
Firefly Music Festival berlangsung di Dover, United Kingdom. Berikut adalah alamat lengkap festival: The Woodlands of Dover International Speedway, Dover
Red Hot Chili Peppers, twenty one pilots, LP, Kendrick Lamar, The Neighbourhood, Lord Huron, Calvin Harris, The Avett Brothers, Zedd, Ellie Goulding.
Genre dan sub-genre yang paling populer dari edisi sebelumnya adalah:
rock
folk
electronic
indie rock
indie pop
indie
alternative
alternative rock
electropop
indie folk
post-punk
synth-pop
electronica
folk rock
pop rock
psychedelic
experimental
garage rock
indietronica