Please fix it for upcoming Firefox 3.1 Rated 5 out of 5 stars

Incompatible with Fx3.1b2 under WinVista:

1. Unable to drag&drop tabs.
2. Disappears "Open a new tab" button.
3. Browsing history is frozen (unable to alter or clear it).
4. Previous session tabs never restores.
5. "History" / "Restore from last session" contents if frozen, and if [Restore] clicked, nothing happens.

This review is for a previous version of the add-on (0.4.0.5).