This PrestaShop module allows you to control how your website will appear on Facebook. Plugin generates necessary tags automatically but this great addon has also a feature to define custom open graph tags for each page in your shop. This means that you can define own customized tags for products, categories, homepage or other parts of your shop.
more informations about this module you can find on official module website:
Facebook open graph tags for PrestaShop
You can find there only valuable solutions for your e-commerce shop based on PrestaShop engine. Search the best plugin for your store that will meet your requirements and just use it.