Fediverse Sharing
Sharing Content to a federated Service like Mastodon, requires the domain of Instance to which the user wants to share the content. The most common solution that I have seen asked the use to input the domain.
This solution could also be implemented for this extension. But it seems quite cumbersome and would require a somewhat larger effort.
Feel free if you are interested in an implementation of this feature.
Comment if you want to implement the feature or if you know a better solution for sharing to the fediverse.