Broken and can't reinstall
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I am (have been for some time) running 5.0.3 on OS X 10.11.3 and Safari 9.0.3.
I went to delete unwanted cookies, and the spinning gear next to the menu bar icon never stopped. I restarted the system (the gear did not reappear), but it still shows a ton of unwanted cookies, etc. But the menu shows all entries dimmed so I can't choose the delete pick. I quit Cookie and tried to reinstall it, but I can't replace the app because it is running. I can't manually trash the app because it is open. Help!