There appears to be a big in Site Advisor since the location where the pulldown tab resides (upper right corner next to "Close", "Minimize", "Hide" buttons) covers up the last tab on my Firefox window. This makes it extremely difficult to close this last tab and open a new tab (new tab button also covered). There doesn't appear to be any way to relocate the site advisor pulldown, or change the location/configuration of Firefox so it's last tab and "New Window" button do not get covered.
Would appreciate som help in resolving this.
I have the same issue. Did you ever find a solution?