@djoegio Eventually it worked by going to opera://bookmarks, deleting all old versions of my speed dials, copying the latest imported one and pasting it in the right folder. I understand now that one of my problems was that I'm using a Dutch language version of Opera. Speed dials are called 'snelkiezers' here and I confused these with 'favorites' (bladwijzers). Thanks for all your help!

@djoegio Thanks for you help but I keep getting stuck here: ''You will now see your current (new laptop) speed dials in Opera's right pane''. Nothing shows in the right pane.

@dld44 Thank you for your help. I will try it.

@dld44 please help me. I still don't understand how to move my speed dials to my new laptop. I don't seem to grasp your instructions.

@leocg I still don't understand. How do I copy? Please explain as if you a talking to a small child.