I would like to create a window that is “always on top”. I see a Window.alwaysOnTop property documented here: https://developer.mozilla.org/en-US/Add-ons/WebExtensions/API/windows/Window. It does not seem to be supported as a WindowCreateOption (get an exception in the debugger) and setting it programmatically in the create window callback seems to have no effect. Is this property not supported or is there some other way to set it?
Thanks!
Scott