@opera39x I don't think you can do it in Opera for Android, except by removing all your data. You should be able to it, however, using Opera for desktops and sync.
There are TWO (2) unique devices here. My laptop (which has one entry) and my desktop (3 entries). There is no possible way for me to navigate to the folders of the "old" desktop versions to delete them, as it's the same tower I have now that's been wiped for repairs.
" By April 2017, the updated specifications had diverged from the test such that the latest versions of Google Chrome, Safari and Mozilla Firefox no longer pass the test as written.[3] Hickson acknowledges that some aspects of the test were controversial and has written that the test "no longer reflects the consensus of the Web standards it purports to test, especially when it comes to issues affecting mobile browsers". "