User blog comment:Dragonjet/KanColle Command Center/@comment-24745445-20140708125845/@comment-1820055-20140708142334

it seems to be outside the scope of the extension. you can check this article for solution to that WebStore problem:

https://productforums.google.com/d/msg/chrome/2AvdDgSJY08/AyJZWAhs6a0J