[Plugin: NextGEN Gallery] Facebook Share

I added a Facebook share button to the single pic page, but Facebook gives me the option to choose from every thumbnail in the gallery. I only want only the one thumbnail from the given page.

See the following link for an example: https://iballin.com/featured/future-took-everyone-in-louisville-to-the-moon/?pid=8881

https://www.ads-software.com/extend/plugins/nextgen-gallery/