@nkgrzegorzewicz Thank you for the suggestions. I have set my panel up to include history, but that only shows tabs listed by the day that they were viewed, not closed windows, a very long process to recover tabs open for some time.

My tools look a little different to yours, but is hat a reflection on choices in Appearance? Seems not have enough privileges to upload picture of my Opera Settings.

The History Menu only included tabs opened since that crash, not before where so many were closed by Opera.