I have now added the options to disable the "browse bar" and the social media buttons (and the mobile viewer). It's all done from the settings tab.
Which takes precedence, the mobile viewer setting or the individual album setting?
The global setting just makes it possible at all to use the mobile viewer. If it is disabled it will never be used. If enabled the album setting and other factors are used to determine if it is used.
The album setting only disables the viewer. Unchecked it doesn't make the viewer to always be used.