My WebExtension opens popup windows to display a dialog box and a popup window for editing user-generated data. For the window create type in the call to windows.create(), I’ve used “popup” and “panel”. In both cases, this causes the maximize button on the window’s title bar to be disabled. This is okay for the dialog box, but for the edit window this is not what I want. Is there a way to make the window maximize button appear on the title bar?
The only thing in this direction in the API I could find is the windows.WindowState, which you could probably use to display an additional maximize button on your page and maximize the window programmatically.