Hi,
Could you improve SBA Options management by including some tooltips?
In attached screen capture, it can show a tooltip next to the menu item. It can make the option more understandable.
For that, I added a new entity in 
prefs.dtd:
<!ENTITY width.max.special.full.tooltip "The searchbar will expand to the largest size it can be without pushing anything off the screen">
and I added
 the property
 tooltiptextto element 
menuitem in line 57 in 
prefs.xul:
     <menuitem value="full" label="&width.max.special.full;" tooltiptext="&width.max.special.full.tooltip;" />
In the same manner it can add tooltips to all the options in Option Dialog.
Thanks!
 - Cătălin
