Google Chrome allows for multiple users to be signed into the browser at the same time. Each user has their own cookies, etc. You could use this to set up multiple profiles, each having their own Facebook logins.
(see attachment in previous post)
Firefox lets you too be logged in two or more gmail accounts. But for some google services you have to decide what is the only active account, like google drive.
But this is not the point in automation .
I think the problem i have is with ID sessions.
The thing may have an answer if someone has developed an UDF for this purpose and how supere and recognize the parameters every time the user ID session is affected.
Recently I read google is developing a script for artificial intelligence automated responses in social media.
By example : someone celebrate his anniversary, or his birthday. The script is able to analyze the context and make an automated answer according to the context.
But I continue thinking that this subject is impopular in the forums because spams and other abuses from the users.