The way they work right now is so inefficient. I need to carry so many jars which takes up so many storage spaces, also jars the fireflies dont accumulate so if I have 4 in one jar and 3 in another then they are all worthless. Not to mention a single swarm of fireflies never has enough to fill 2 jars but most of the time has more than 7.
IMO this would just be more practical.