I notice that in the Windows dialogs, the wrong button is often highlighted - for example, No is highlighted in "Do you want to allow changes", and Cancel is hi

I notice that in the Windows dialogs, the wrong button is often highlighted - for example, No is highlighted in "Do you want to allow changes", and Cancel is highlighted in the Firefox "Opening" dialog. Maybe it'd be better to highlight the correct option for people who don't bother to read the text?