OGraph Previewer от 789WIN

A light-weight extension to preview the open graph tags ( og tags) of the page in your current tab

Provides a quick preview of open graph data of the page on the current tab. This will give an idea of how the link would look if shared on social media platforms. This tool can be used to improve the SEO of your page while in development. It can also be used to check your open tags of the pages that are already in production.
You can also copy the existing og tag data on the page for debugging purposes.