Fix leaks of 2 string bundles and an nsInterfaceHashtable. Stop using nsIPref in favor of nsIPrefService Use members instead of pointers for hashtables that always exist Use ContractIDs instead of CIDs r=timeless; sr=jst git-svn-id: svn://10.0.0.236/trunk@149176 18797224-902f-48f8-a5cc-f745e15eee43