Hey Antdc
I have this sitemap for fb that you can use. It extracts the emails from the main field and also - if the main field is blank - from the Additional Info field.
Also looks if there's any team member so you get a name and a link to his/her personal profile.
Hope this helps.
{"_id":"facebook_pages-scrap_template","startUrl":["PASTE HERE YOUR FACEBOOK PAGE SEARCH RESULTS URL"],"selectors":[{"id":"listing","type":"SelectorElementScroll","parentSelectors":["_root"],"selector":"._gli","multiple":true,"delay":2000},{"id":"Name","type":"SelectorLink","parentSelectors":["listing"],"selector":"a._32mo","multiple":false,"delay":0},{"id":"clickabout","type":"SelectorLink","parentSelectors":["Name"],"selector":"a._2yau:Contains('About')","multiple":false,"delay":0},{"id":"number","type":"SelectorText","parentSelectors":["clickabout"],"selector":"div._3n4o div._50f4","multiple":false,"regex":"","delay":0},{"id":"email","type":"SelectorText","parentSelectors":["clickabout"],"selector":"a#u_fetchstream_10_0 div._50f4","multiple":false,"regex":"","delay":0},{"id":"website","type":"SelectorText","parentSelectors":["clickabout"],"selector":"a div div._50f4","multiple":false,"regex":"","delay":0},{"id":"additional_info","type":"SelectorText","parentSelectors":["clickabout"],"selector":"a div._50f4","multiple":false,"regex":"","delay":0},{"id":"team_members","type":"SelectorLink","parentSelectors":["clickabout"],"selector":"strong a","multiple":false,"delay":0}]}