Date: 07/11/07 (Opera Browser)    Keywords: html

These are nice:
http://operawatch.com/news/2007/07/tip-open-pages-in-firefox-and-internet-explorer-directly-from-opera.html

I can't find how to set up buttons like that. Is there some documentation I've missed?
Here's some stuff on how to do buttons: http://people.opera.com/rijk/opera/dndbuttons.html

Source: http://community.livejournal.com/opera_browser/66252.html