Android File Transfer on Mac with Galaxy S3

I could not get the Android File Transfer app http://www.android.com/filetransfer/ to work on my Mac.
It turns out that Kies application from Samsung was the problem causing conflicts when connecting my S3 to my Mac :(
http://www.samsung.com/us/kies/

You need to un-install Kies using the Uninstaller on the Kies disk image.

1. Download the Samsung Kies package from the Samsung website:
2. http://www.samsung.com/uk/support/usefulsoftware/KIES/JSP
3. Open the downloaded Kies package
4. Run the "Uninstall" program

The Galaxy device must also be set to "Media Device" Mode (MTP) as this is the protocol used by Android File Transfer. This can be done as follows:

1. Connect your S3 to your Mac using a USB cable
2. Touch the notification bar on your phone (the thin bar at the top of the screen containing the time, battery indicator, etc.)
3. Pull the notification bar down to the bottom of the screen
4. Select the “Connected as Media Device” or “Connected as Camera” option
5. Select the “Media Device (MTP)” option (if this is not already selected)

Hope this helps any other frustrated users.  The Android File Transfer App is invaluable.