Minecraft version
Back to mods 
CurseForge · Minecraft mod
Better FireFlies
Better FireFlies (BFF) is a client-side mod that add ambiant Fireflies.
Choose a version Pick your version below, then grab the matching file.
Quick answer
Which Better FireFlies release matches 1.21.5 Fabric?
Best match for your filters firefly-fabric-1.21.5-1.0.0.jar
Game version 1.21.5
Loader Fabric, Quilt
Better FireFlies firefly-fabric-1.21.5-1.0.0.jar targets 1.21.5 with Fabric, Quilt. The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server. No extra mods listed for this file.
Where it goes
Is Better FireFlies required on the client, server, or both?
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release Fabric, Quilt
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume
The source does not explicitly classify this release as client-only or server-only.
What else does Better FireFlies firefly-fabric-1.21.5-1.0.0.jar need?
firefly-fabric-1.21.5-1.0.0.jar on 1.21.5 Fabric. Every mod below is checked against that same setup.
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 Better FireFlies without breaking your instance.
Built for Better FireFlies firefly-fabric-1.21.5-1.0.0.jar on 1.21.5 Fabric. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use firefly-fabric-1.21.5-1.0.0.jar. It targets 1.21.5 with Fabric, Quilt; 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
The project page does not say whether it belongs on the client. The project page does not say whether it belongs on the dedicated server.
- 04
Pick the file you checked
Use the “Get this file” button beside firefly-fabric-1.21.5-1.0.0.jar. It opens that exact file at the source.
About this project
What does Better FireFlies add?
Better FireFlies (BFF) is a client-side mod that adds 3D FireFlies during night.
The FireFlies are purely decorative and they create their own dynamic light. It adds a cool atmosphere to your adventure!
- Swamp
- Forest
- Jungle
- Lush Caves
- ALL Caves (During night)
The dynamic light can cause lag, so if your computer can't handle it. Use this command to turn on/off the dynamic light:
/fireflylight
Feel free to add this to your modpacks!
Project description from CurseForge.
Pick your setup
Better FireFlies by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Minecraft version
1.21.9
2 loader buildsMinecraft version
1.21.8
2 loader buildsMinecraft version
1.21.7
2 loader buildsMinecraft version
1.21.6
2 loader buildsMinecraft version
1.21.5
2 loader buildsMinecraft version
1.21.4
2 loader buildsMinecraft version
1.21.3
2 loader buildsMinecraft version
1.21.2
2 loader buildsMinecraft version
1.21.1
2 loader buildsMinecraft version
1.21
2 loader buildsCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Better FireFlies versions and loaders
firefly-fabric-1.21.5-1.0.0.jar
31 Jul 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.21.5 · Fabric setup Fabric1.21.5Quilt release
Looking for an older file? The official CurseForge project page is in Resources.
mod CurseForge · Minecraft
Enderscape
Total overhaul of The End with new generation, biomes, mobs, and other features.
mod CurseForge · Minecraft
BuildPaste (Fabric)
10,000+ unique structures available to /paste into your world
mod CurseForge + Modrinth · Minecraft
Armor Hider
Hide or adjust the transparency of armor, glint, and offhand items - with full multiplayer sync. No dependencies required.