OS 10.6.7 FireFox 4.0.1 just upgraded Now 1. I can't navigate between tabs only the latest one, 2. When I click on the small plus sign to create a new tab nothing happens if I double click on the plus sign it minimizes FireFox the keyboard short cut will create a new tab but then I can’t select any of the other tabs showing 3. I can’t organize tabs by click hold and dragging to a new position or between other FireFox windows. 4. txt across the top bar is black and hard to read FireFox is useless if I have to create a new window rather than use tabs, Have had to resort to using Safari to do any internet searches . IS there a fix or a setting I need to change?????