Translations:Installation/70/en

• By default your Library folder is hidden and will not appear in the Finder. To make it visible, bring up a Terminal window and execute the following command:

  chflags nohidden ~/Library/

• Depending upon your browser settings, when you download the TerraFirmaCraft zip file OS X may automatically unzip it and place it into a folder named 'TFC-0'. The download settings can be changed in your browser such that it doesn't unzip upon download. Find where your browser keeps its helper application settings and change the action of the zip file type to "always ask" or "save as."

TerraFirmaCraft should now be installed. Run minecraft again making sure your Profile is still set to Forge.
Once in game click the mods button and you should see something similar the following: