How to Change the Mob Head Drop Chance in Just Mob Heads

Finding the Config File

Just Mob Heads stores all of its settings in a Forge config file, so the first step is locating it. Open your Minecraft instance folder and go into the config directory. Look for a file named after the mod (something like justmobheads-common.toml or similar). You can open it with any plain text editor. If you are running a server, edit the config on the server side — the client config will not affect drops.

Editing Global and Per-Mob Values

Inside the config you will see a global chance value that applies to every mob by default, plus a section where you can override the chance for individual mobs. The chance is expressed as a decimal or percentage depending on how the file is written — read the comment lines above each entry to confirm the format before you change anything. To make heads rarer, lower the number; to make them more common, raise it. If you want one specific mob (for example a Wither Skeleton) to always drop its head while everything else stays rare, add or edit that mob's entry instead of touching the global value.

Applying Your Changes

Save the file and restart Minecraft or the server. Config values are read at startup, so a reload command will not pick them up. After restarting, kill a few mobs in a test world to confirm the new rate feels right, then adjust again if needed.