Festival dijadwalkan dari 20 Jun hingga 23 Jun 2019 (3 hari).
Firefly Music Festival berlangsung di Dover, United Kingdom. Berikut adalah alamat lengkap festival: The Woodlands of Dover International Speedway, Dover
Post Malone, Yungblud, Travis Scott, Tyler, the Creator, Lauren Daigle, Alec Benjamin, AJR, Kygo, Panic! at the Disco, Death Cab for Cutie, Nora en Pure, Louis The Child, Young the Giant, DJ Snake, SOJA.
Genre dan sub-genre yang paling populer dari edisi sebelumnya adalah:
electronic
pop
hip hop
indie pop
indie rock
alternative rock
indie
alternative
electronica
dance
electropop
house
lo-fi
deep house
dream pop
electro
trap
chillout
downtempo