Global Open Graph
Global Open Graph is a native Joomla! sytem plugin, which adds open graph meta tags "global" to your site. "Global" means, that the meta tag will be displayed at every single page or view of the whole site.
The content of Open Graph meta tags is not generated automatically out of page content. Administrators can edit the content manually.
The Global Open Graph plugin is compatible with all other open graph plugins which add tags with autogenerated content.