Install ff3setup.exe on the new machine, right-click, install as administrator, select 'NO' when asked about network installation:
1. Open License Manager from the help menu on the new installation
2. Make a note of the product ID
3. Open the existing installation License Manager from the help menu
4. Select 'Transfer License' option
5. Enter new product ID as noted previously in step 2 above
6. Create transfer license file
7. Move FF3.LIC file to new machine (email, usb, upload to file sharing site), and save to a MEMORABLE LOCATION
8. On the new machine, open the new installation, then go to the License Manager from help menu
9. Import file
10. Select the FF3.LIC file from the MEMORABLE LOCATION and import.