If you don’t have the free FxFactory application installed on your Mac, you can download it free from the FxFactory site:
If you use Safari, you can see the download progress:
Once it has finished downloading, use the magnifying glass to tell the finder to show the location of the installer:
If the Finder hasn't extracted the Install FxFactory.pkg installer file, double-click the .zip archive.
Double-click the Install FxFactory.pkg installer file to install FxFactory into your Applications folder: