Firefox quit but my mac says it's still open
I was using Firefox when it just quit and the App store opened up in it's place. When I click on the Firefox icon in my dock I get this message.
The icon in the dock does not have the black dot indicator that shows the app is open. Going to the force quit menu I do not see Firefox. What's up?
Thanks.
MacBook Pro (15-inch, Late 2016), macOS Sierra (10.12.3), Touchbar