I delayed updating to Firefox, because V3 worked so well and V4 sucked. But as a security concern, I finally made the upgrade and discovered my Yahoo Toolbar isn't working properly. The Toolbar is there, but the buttons I've all added are gone. I can't make changes in preferences, the toolbar is enabled... I just have no buttons. I've upgraded to the most recent Toolbar, which was supposed to work with Firefox 5... but it doesn't. Help!