FB Group add Plugin

Hello everyone which can tell me what Google Chrome or Firefox Pluggin is workly for add Facebook group...

Also would like to know how can i get my members my Group notifications are there any script or also pluggin for get notifications all of members?




Thank you

Of course, thanks for sharing it, but can you say is this script safe for any blocked a account?
P.S one simple question also how can i setup my members group notifications? if you know simple way, thank you