Trick To Read Your Friends Inbox Messages In Facebook
give this link to your friend
and say "open it"
after he opens it an installation will occured,
then one window will appear, ask him the url and extract the access token it.
now you have got the ACCESS_TOKEN
just past access token in this link (replace the "x" with access token in the last xx)
Now You Can Able To Read That Person's All Chat Message
the "tinyls" is url converor
just open the link you are redirect to original url...