this is a small thing I did to recycle a bad razer firefly due to some damage from being in the sun.
1- have a broken razer firefly mousepad ( mine i forgot it in the sun so it bend so badly with the glue failing .
2- take apart your firefly be careful keep the led’s intact.
3- install wallpaper engine can be found on steam ,and make it rainbow on a razer wallpaper
4- get custom razer cursor put it in the right folder ( can be found on this forums )
5- cover the pcb parts with tape then put the mouse-pad under the monitor and make it upside down so the rubber bottom of it will protect it.
mine needs cleaning XD.