I could not get this program to recognize the fonts I had activated in Font Explorer X. It was only showing me the default System fonts that were activated through Font Book. Without support for 3rd party font managers this program is of little use to those with large amounts of managed fonts. Someone else on this page mentioned it worked for them using Font Reserve, but Font Explorer X is a current, newer, updated font manager that should also be supported as it is gaining traction over commercial solutions like Font Reserve (now Suitcase Fusion) for many medium sized businesses.