Just Mob Heads Mod 1.13.2/1.12.2 is a minimalistic mod that adds a configurable chance for mobs to drop their head on death.
The mod allows configuration via the Config Manager of Forge. There is a global value which sets the chance for all mobs, and also an option to specify (these values already exist) a specific drop chance for any mob.
Texture values instead of generation via player-names
The mod uses texture values to generate the mob heads. This means that there won?t be any lag, which player-name generated heads usually cause.
Pure Vanilla Resources
Because the mod does not add any custom blocks, you may remove the mod and still have the heads previously gathered in-game.