Did you use Delete private data, or empty your cache?

Finally beginning to look like Spring around here. Just 2 days ago we had snow, though some of the earlier lilies were up (not blooming, just showing leaves). Mind you, we did have violets already. But now the Lillie's are actually blooming, and some of the trees are starting to leaf up.

There was no 13, for either desktop or mobile - that was during the changeover from Presto to Blink and they decided they might as well skip the "unlucky" number. (There was also no 14 for desktop - at the time they were trying to keep version numbers in sync but the desktop version wasn't stable enough.) The others I don't know about.

If the problem is in Mobile, you should have posted there. Moved. (Presuming you mean Opera for Android - be more specific if that is wrong.)

Moved to Feature requests ...

You pressed F11 or selected full-screen mode from the context menu. Press F11 again, or Esc, or select Exit full screen from the context menu.

Do you read before you post? It is not a problem with Opera, it is that FedEx only checks their website with a few browsers and then bans the rest. You can talk to FedEx and tell them to stop being biased, or you can install a user agent switcher in Opera (to make FedEx think you are using Chrome). Talking to Opera can't change what someone else is doing.

This area of the forums is English. If you want help in another language you should post in the appropriate local forum.

Does the directory listed as your downloads directory in Settings actually exist? And is it owned by your user account?

It should be fixed, but you'll have to delete the updated version and install the old one.