Windows preferences

You can have multiple windows open in the same Opera application. These settings define the behaviour and appearance of these windows.

Browser windows

Some Web pages automatically create pop-up windows, like a log-in window or a window with useful information. The window could also contain advertisements. Since pop-ups are often unwanted, you can decide if and how pop-ups are to be displayed.

Note: It is not possible to distinguish between wanted and unwanted pop-ups, so disabling pop-ups may not always give the intended result.

Since you can have multiple windows inside Opera, you can choose to open bookmarks and typed-in Web page addresses in new browser windows, rather than browsing in just one window.

Opera uses additional memory to avoid flicker when drawing images. If you have limited memory on your computer, turning this setting off will increase performance.

You can decide to show the size of browser windows in the window title bar. This may be useful for Web designers who want to check how Web pages look on lower resolutions.

You can decide the default zoom and positioning of a new window.