https://forums.opera.com/topic/25187/only-store-cookies-and-site-data-for-bookmarked-domains
Only store cookies and site data for bookmarked domains | Opera forums
Feb 18, 2018 - Any chance we could get additional 4th setting for cookies that would only allow permanent storing of cookies for webpages that are stored in bookmarks while...
site databookmarked domainsstorecookies