I’ll get right into it. I fully support the decision to remove fireflies. I believe it is fully reasonable and educational, but, I think it upset a lot of the community that such a great feature was removed so easily. So, here is my solution/suggestion that honestly I’m surprised Mojang has not already made.
Make it a different bioluminescent bug. It’s as simple as that. My suggestion is Click Beetles as they are harmless to amphibians, at least from what I’ve researched. Of course there are many other bioluminescent flying bugs that are safe for frogs that could be a wonderful solution to both sides of the problem. But, I do think Click Beetles would be great because of their signature click sound which is a perfect opportunity to make another cool feature.
Now, this next part of my thread might seem like an attack to the Mojang staff, but please don’t take it personally, I’ve just been a little upset how Mojang handles the removal of features. So, I’ll keep it as short as possible: Stop running away from problems and removing countless amazing features. Instead do the amazing trick of “appealing to both parties.” Super simple, just like the suggestion above, instead of removing a feature, add something similar but less harmful, that way everyones happy. Right now it really looks like Mojang is just being lazy and making more excuses to remove a feature they don’t want to work on. I think it would show a lot more commitment and kindness if Mojang would put in the extra work for the #1 game in the world.
To all that read this, lets try and get the staff to see this, I think if we put enough pressure on them they’ll make this compromise happen.
The reason for the click beetles is we already have something frogs will eat, called the smallest slimes will get eaten, the reason why they don't power for similar mobs for the removed is because it would look more chalky, that's like the Remove Herobrine I get they did that for jokes and stuff but this is meant to be a point to be proven and decided to add a steve with superpowers
It's not that simple. It's not solely because of the whole issue arisen with how they're poisonous for consumption, hence being "useless". I believe they just didn't have enough time to work on fireflies, despite the uses they could still have.
The whole point was to have a source for the froglight block. If it weren't to be via fireflies, then they had to work out how it'd be created, and how the magma cubes would help frogs form the blocks. Also, they would have needed more time before the deadline to release 1.19 to actually be able to sit and work out how fireflies could be implemented -- probably not as entities as that would cause performance issues, but what if as particles or something else? It would have to go through iterations of tests and ideas. Maybe if Mojang had another half a year to only focus on how fireflies could work, then we might have them in the game. So a replacement similarity isn't likely necessary nor the issue resolved, it was quite possibly a matter of having the time.