I think this is the same as I’m talking about
https://stackoverflow.com/questions/15023419/get-bigger-picture-from-facebook-links-in-feed
I’ll give you an example.
The image on Facebook wall (grabbed by Facebook from linked page)
https://fbexternal-a.akamaihd.net/safe_image.php?d=AQDBYFFDQRrx_XTc&w=398&h=208&url=http%3A%2F%2Ffarm8.staticflickr.com%2F7347%2F9151227382_53796bab69_z.jpg&cfs=1&sx=8&sy=0&sw=624&sh=326
The image on my WordPresspage, seems to be only a thumbnail:
https://external.ak.fbcdn.net/safe_image.php?d=AQCF5Ld2uxUmK6LX&w=154&h=154&url=http%3A%2F%2Ffarm8.staticflickr.com%2F7347%2F9151227382_53796bab69_z.jpg
Is it possible to get the first image on my page?