ArchiMage
Я незнаком с этими утилами. Попапы Опера рубит на корню (Accept Popup Windows\Refuse\Open in background\Open requested popup windows only)... Букмарки группируются по папкам и есть функция - open all folder items....
Bookmarks
Save Web sites as bookmarks and organize them in folders. Sort them by title, date created, or when visited -- or customize your own ordering. Assign nicknames for easy access to your favorites. If you are having trouble finding a certain bookmark, you can make a quick search and get a list of matches.
Здесь список некоторых features:
http://www.opera.com/features/