Hi there,
This is Shamzi here from Bangalore, India.
I saw your chrome extension requirement posted here, to implement a chrome extension to extract emails of members of Facrbook groups and fan pages.
I would really like to help you out in this, as I have developed a very similar chrome extension about 6 months ago (it involved retrieval of Email IDs and Phone numbers of FB Group members).
So i can implement the logic to see if we can build on top of that extension for applying it to FB pages as well (fetching this data from pages is a bit tricky based on my last research and exploration on this topic).
I would be glad to tell you that, I can send you my current chrome extension to get you started on the fetching of data from FB groups instantly (as the code is already built for this use-case). The FB pages part can be taken up separately (if i can implement it, i'm not very sure of it as FB has certain restrictions on giving out list of people of a fb page).
I hope we can discuss this in detail over chat, waiting to hear back from you.
Thank you,
Shamzi