To perform this, you require Google Chrome due to the fact that you are going to use a Chrome extension to do all the stuff for you. Facebook post manager is a Google Chrome extension that lets you erase all Facebook Posts in a single click.
If you want to alter the personal privacy of all posts from "Public" to "Pals", or from "Pals" to "Just me", or "Public" to "Only me"-- it is all possible with a filling a kind and striking a button.
How To Delete All Facebook Posts
You can find posts that contain a keyword and alter the personal privacy of those posts or erase those posts. It is also possible to delete all Facebook posts that were posted in a month of the year, for example, I can erase posts that were created in the month of November 2017.
Facebook tagging is one of the things that frustrates when you have got a friend who tags on every photo or his/her profile picture. You may not always go to their photo and untag yourselves whenever he or she tags you on a picture where you do not belong.
Utilize Facebook Post Supervisor assists you to change the privacy of such posts rapidly by browsing those posts in your Activity Log using the keyword, "tagged".
You can likewise find out ways to erase all messages on Facebook. Although this is a 2014 technique, the extension seems to be working, How To Delete All Facebook Posts.