@leocg I'm sorry, but your instructions are just too short and cryptic for me to accomplish what I need to do. Is it possible to have a more patient volunteer to review this string and try a more comprehensive response as I've requested? Thank you.

Thanks, but I'm sorry to say that your suggestion is not helpful. When I go to www.sync.opera.com on my old computer and click Reset Passphrase I get to a page saying "You have no sync data stored" and I'm advised to "sign into Opera to start syncing and access your bookmarks and other browser data from all your devices". Under Settings > Synchronization, I see no place to reset the passphrase. I would be really grateful if you could give me the step-by-step process I need to follow on my old computer and then on my new computer in order to have the many bookmarks, the history, settings and passwords on my old computer available on my new computer. I do not understand why this must be so difficult. I've been an Opera user for a long time and want to be happy with it again. Thank you.

Opera is the browser I use on my current computer. I have purchased a new computer. I would to copy/sync all my bookmarks, history, settings and passwords to my new computer. How can I do this? I do not know my sync passphrase, if I ever had one. Thanks.