How to Easily Install Mods in Farming Simulator 21?
The process of installing mods in Farming Simulator 21 will remain the same as it was in FS19 and previous installments in the series. You can find the mod installation option in the game’s menu. However, there are a few guidelines that you will need to comply with before installing a mod. For starters, only the mods from Giants mod site will be usable.
You should also be familiar with storing zip mods in the mod folder i.e. pasting the zip file into :/Library/Application Support/FarmingSimulator2021/mods folder. As for the mod folder of Mac version of FS21, it can be found here:
Also you can find more info in: How to install Farming Simulator 21 Mods