
Modrinth · Minecraft mod
Lawrence's Ambient Fireflies
A very light Mod/Datapack that adds fireflies as ambient particles to the Swamp and Mangrove Swamp
Quick answer
Which Lawrence's Ambient Fireflies release should I use?
Lawrence's Ambient Fireflies 1.2.0+mod targets 1.21.10, 1.21.11, 1.21.5 with Fabric, Forge, NeoForge. Installation on the client is optional. Installation on the dedicated server is optional. No extra mods listed for this file.
Where it goes
Is Lawrence's Ambient Fireflies required on the client, server, or both?
Installation on the client is optional. Installation on the dedicated server is optional.
The source marks this as usable on both the client and server.
What else does Lawrence's Ambient Fireflies 1.2.0+mod need?
1.2.0+mod. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Lawrence's Ambient Fireflies without breaking your instance.
Built for Lawrence's Ambient Fireflies 1.2.0+mod. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use 1.2.0+mod. It targets 1.21.10, 1.21.11, 1.21.5 with Fabric, Forge, NeoForge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
Installation on the client is optional. Installation on the dedicated server is optional.
- 04
Pick the file you checked
Use the “Get this file” button beside 1.2.0+mod. It opens that exact file at the source.
About this project
What does Lawrence's Ambient Fireflies add?

A small and very lightweight pack that adds fireflies as ambient particles to the Swamp and Mangrove biomes.
It'll work with most other datapacks? It for sure won't work with any other mods/datapacks that directly change swamps/mangrove swamps directly so just keep that in mind.
Will not work on Realms
Project description from Modrinth.
Pick your setup
Lawrence's Ambient Fireflies by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
5 loader builds26.1.1
5 loader builds26.1
5 loader builds25w44a
5 loader builds25w43a
5 loader builds25w42a
5 loader builds25w41a
5 loader builds1.21.11
5 loader builds1.21.10
5 loader builds1.21.9
5 loader builds1.21.8
5 loader buildsShowing the newest 12 of 15 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Lawrence's Ambient Fireflies versions and loaders
1.2.0+mod
lawrences-ambient-fireflies-1.2.0.jar
27 Jun 2026
1.2.0
lawrences-ambient-fireflies.zip
27 Jun 2026
1.1.1+mod
lawrences-ambient-fireflies-1.1.1.jar
11 Dec 2025
1.1.1
lawrences-ambient-fireflies.zip
11 Dec 2025
1.1.0+mod
lawrences-ambient-fireflies-1.1.0.jar
11 Oct 2025
1.1.0
lawrences-ambient-fireflies.zip
11 Oct 2025
1.0.0+mod
lawrences-ambient-fireflies-1.0.0.jar
25 Jul 2025
1.0.0
lightfireflies.zip
25 Jul 2025
Looking for an older file? The official Modrinth project page is in Resources.