In FF 3.0 ALL the open tabs has an X in the righthand corner, even
when only one tab was open. I frequently frequently want to close all
tabs, even when only one is open, before minimising FF.
In 3.5.2 which I upgraded to a day or two ago, this X is not shown
when only one tab is open, and therefore the only way I am aware of to
achieve the same result, is to open a second tab, close it, and the
minimise FF.
Is there a setting or add-on to close the only open one?