





Fireflies were something that Mojang intended to add to the vanilla game. But they later dropped the idea due to many reasons. This left a lot of players disappointed. Worry no more! As Fireflies Mod is here to introduce fireflies into the game. With this mod installed, fireflies will spawn at nighttime when the player walks on grass blocks or leaves in a swamp biome. The fireflies are a hybrid between a particle and a mob, and therefore do not have health points on their own. They can be summoned using the /summon command.
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Features:
- Fireflies will spawn at nighttime when the player walks on grass blocks or leaves in a swamp biome.
- The fireflies are a hybrid between a particle and a mob.
- Fireflies can be summoned using the /summon command.
Screenshots:






Fireflies Mod Download Links
For Minecraft 1.21.4
NeoForge version: Download from Server 1 – Download from Server 2
For Minecraft 1.21.1, 1.21
NeoForge version: Download from Server 1 – Download from Server 2
For Minecraft 1.20.4
NeoForge version: Download from Server 1 – Download from Server 2
For Minecraft 1.20.1, 1.20
Forge version: Download from Server 1 – Download from Server 2
For Minecraft 1.19.4
Forge version: Download from Server 1 – Download from Server 2
For Minecraft 1.19.2
Forge version: Download from Server 1 – Download from Server 2
For Minecraft 1.18.2
Forge version: Download from Server 1 – Download from Server 2
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.4, 1.20.1
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Downloads as 176501.mcaddon
- Download size: 32 KB
- Download link checked 25 Jul 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.