RE: LINUX QUESTION, how to import and export bookmarks?
It should be under main menu (Opera button in upper left corner)>settings>browser>default browser. There should be a button under where it lists Opera as your default browser. A pop-up window will ask you where to import the bookmarks from. I usually go to the start page to retrieve the imports from there. It's at the bottom of the start page (Speed Dial, Bookmarks, Discover, etc...) with the heart icon. Just click on that and you should see the imported bookmarks button on the left panel. It will show your imports in a folder on that page. This is in the latest version of Opera 30.
I'd like to export them...not to import them. What you have explained is basically how to transfer your bookmarks from Opera to another browser, but I need it for security purposes. I need a backup of them which is an option not given in Opera (v. 33)