General information
This client mod will help you to not fall off fly machine to void.
Using
After use /f_start mod will save current Y coord. If player's Y coord will become less than saved one (player has fallen) - mod will disconnect from server (leave singleplayer world) or send chat command. It can be configured using /f_config command:
/f_config leave- after fall will disconnect from server or leave world/f_config command "command_without_slash"- after fall will send chat command
Note: config is global between all worlds and servers
Recommended to test mod in singleplayer creative world before using in survival to understand how exactly mod works.
If you need help feel free to create GitHub issue
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.3, 1.21.4, 1.21.5
- 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: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
Verified by MCModsHub
- Ships as fmfs-1.0.7.jar — drop this file into the mods folder
- Download size: 112 KB
- Download link checked 8 Sept 2026 — working
These come from our own check of the pack file, not from the source page.