Yomichan for Chrome (think Rikaichan + auto flashcards)!

I just installed this and unfortunately it is doing absolutely nothing    I tried clicking yomichan on and off a few times, reloaded several different webpages, restarted chrome, and turned off stylish and rikaikun in case they were interfering.  Still nothing.

Mac OSX Yosemite 10.10.5 (14F27)
Chrome Version 50.0.2661.102 (64-bit)

I've used standalone yomichan in the past with great success, so many thanks for that!  I'd love to get this working though.