Hi,
Thanks for contacting us here about this extension.
Kann man evtl. das Bild welches beim Posten/Veröffentlichen bei facebook einstellen?
We don't have options to adjust image size before the articles are uploaded to facebook.
The image will be display full on facebook as the image you attached, or small on the left if that image is small in the article.
Hope it helps!
Cheers,