the easiest way would be to disable the timer
remove all non favorites
login to xmarks (or open it - im not sure if its an extension or not?)
then see which new cookies are stored in Cookie - and select them as favorites
there may also be tracking cookies, if there are any RED coloured cookies included in the favourite:
you will also need to whitelist that
you do that by selecting the RED cookie, and right-clicking (control-click) * to bring up the contextual menu
then select "Add to Whitelist"
Update to my question above: I just read, in answer to another thread, "click on the menu item "Enable Automatic Removal""
I am guessing my problem is I have not clicked on that. The Cookie icon is black. When I click on it, I do not see that choice, either in the dropdown list or in Preferences. In the dropdown list, there is "Clean Now". That sounds like a manual way to clear cookies?
Are you sure your settings for removal are active in Opera?
If you click the Opera icon and then look on the removal tab to make sure your removal settings are active there.
Another thing to look out for is that Cookie may be globally disabled. If you have cookie in the menu bar it will have an outline of the icon rather than the solid icon. You can click the menu and select “Enable Automatic Removals”
I experienced similar problems with my Google accounts - German (Maps) and English (Mail).
To whitelist the NID did not work for me.
I tried a lot of different combinations and finally it did work for me best and with minimal whitelisting as you can see on my attached screenshot (blue=whitelisted).