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  • hey,
    I cannot switch the youtube video to full screen.
    any help?

  • you probably have set youtube fullscreen not be allowed and it's also set to be remembered. Go to Opera Settings, there's 'Fullscreen' button somewhere there, click it and remove youtube from there.

  • Then you can go opera://flags/. Type that to the address bar. Find the option 'Show domain when entering full-screen mode' and turn it OFF. Then that warning is NOT shown anymore, when you go fullscreen.