I love the app tab feature and have about 5 of my most common sites pinned as App Tabs. However...every time I start FF4 it opens the App Tabs (as expected) and ALSO opens regular tabs for each of those 5 sites. I've tried just opening one, unrelated, site and going in and setting the "Home Tabs" to "Use Current" but every time I restart it opens the app tabs AND six regular tabs (one for each app tab and one for the other site I wanted as a home page. How I can I get FF4 to just opent the app tabs and one page?