Problems with Firefox on 11.04

[Chris Green]

I have just upgraded my system to xubuntu 11.04 and I have a couple of
problems with the version of Firefox it has installed.

The first problem is that I can't even see what version of Firefox it is
  
as the main menus have disappeared (that's the File, Tools and other
menus, including the Help menu which tells you which version of Firefox 
  
you have).  How on earth do I get those menus back?

Secondly the new Tab layout is a pain, I've turned off 'Tabs on top' but
   
the tabs are still in a sill place because the leftmost tab sits above  
 
the sidebar, not above the web display area.  Is there any way to get
back to the old layout where the tabs are actually above the pages they
refer to?

-- 
Chris Green