exporting speed dial used to be very easy in opera. there was a speeddial.ini file that you would copy/paste and all your speed dial pages where saved. I've tried this thumbnail/favorites way that someone wrote a few comments before and what I had to do was open the favorites.db file in a text opener and manually copy/pasted url links. this was the only way it worked. I'm using opera version 29.0.1795.60
I really hope opera will make exporting speed dial more user friendly in the future.