I upgraded the software to the latest version of creative suite which is November 2015. @bleedink Extensis is aware of the issue where our font panels are not working with the Adobe CC2015.2 release.
Font activation does not work any longer and the fonts are not visible to be selected in the programs in which the plug in is used like Photoshop, Illustrator, and In Design. However the auto-activation plugins still should function as expected.
The first test of a fission ("atomic") bomb released the same amount of energy as approximately 20,000 tons of TNT (84 TJ).
The first thermonuclear ("hydrogen") bomb test released the same amount of energy as approximately 10 million tons of TNT (42 PJ).
Font Book is no Suitcase but it has improved somewhat and I'll take my chances...