I tried Alt-P, that brought up the settings menus. So that should do it. Thanks,sgunhouse!

Lukedjez: I do not have the Unity DE, I have Cinnamon.

I recently installed Opera on Zorin 9. For some reason, the main menu is not visible. The only way I can get to it is by clicking "history" at the bottom of the page, then "clear browser history." I then either hit "clear" or cancel, and then I will be on the settings page. I also have Opera on another Linux distro, Mint. There I can see the main menu in the upper left corner, and can access settings from there. But on Zorin, it's just not there. Do I have the wrong version of Opera on Zorin?