Montreal-based Shopify experts cooking some Shopify apps.
Go to Online Store > Theme > Customize theme > Theme Settings > Social Media > Scroll to "Facebook / Open Graph".
This allows to control what is the main featured image displayed when your store's homepage is shared on Facebook. Otherwise, Facebook will take a random image displayed on your homepage or the image of one of the products in your homepage, almost randomly.
Tabarnapp's mission is to help you get the most of each visit on your Shopify store.