FF is set to auto-delete all cookies, cache, and history when Firefox closes, but that is not working according to CCleaner. When I close Firefox and then run CCleaner CC shows many of those items are still there to remove. CC will do it on its own. CC shows the large number of kb and mb of cookies, history, and cache when I set it to “Analyze” prior to removing those with CC. So what is causing Firefox not to delete what it is set to delete when it closes? How do you fix that?