Manuel,
If you edit the /plugins/jfbcprofiles/jomsocial.php file, around line 522, you'll see the following line:
$query = 'SELECT * FROM #__community_fields WHERE type="text" OR type="textarea" OR type="date" OR type="birthdate" ORDER BY ordering';
Update that to the following (adding the --OR type="url"--)
$query = 'SELECT * FROM #__community_fields WHERE type="text" OR type="textarea" OR type="date" OR type="birthdate" OR type="url" ORDER BY ordering';
That should show URL type fields in your Profiles area of JFBConnect. Obviously test to make sure the URL is imported properly.
You can also try adding --OR type="country"-- to the line above to show the country field. However, the reason we don't currently do that is Facebook doesn't always return a country value that lines up exactly with the options in JomSocial. For 99% of the countries, you should be fine.. but again, test!
Please let us know how that goes, and if you run into any issues or have other questions.
Thanks,
Alex