Firefox bookmark issues

• Can't edit or delete a bookmark that you find by searching. Fixed in 1.5. Some others may be fixed too.
  
• Bookmarks Manager can't detect duplicates.
• Delete button doesn't work.
• Can't paste into a new folder. It is unclear to me how to move bookmarks into a new folder.
• Undo doesn't work. It says "undo new separator" but separator stays there.