2 years ago I made the decision to remove all my content on Twitter.
Now Mark Zuckerberg announced that Facebook will be a “Free Speech” zone and he was going to remove all fact checkers for political posts. Further, it looks like new guidelines explicitly allows hateful speech towards Transgender people saying that it is just open communication and healthy debate. And because of this I decided to delete all my content on Facebook too. I am not deleting my whole account because the world still runs on Facebook and people rely on it for connections, but I didn’t want my data to be on the site anymore.

Why Script?
Mostly because it is the only feasible way to delete all of your content. There is the Facebook API but then I would have to register my application with Facebook, and there is no way that Facebook would approve an app in which the main purpose is to delete all your content on their platform.
Using a script will most definitely violate the terms and conditions of Facebook. If you do so it is 100% your choice and I have no responsibility.

Browser Extension
As before with Twitter I created a script that will go through all of my Facebook posts, likes, comments, reactions. But given that Facebook usage is a lot more universal than Twitter, I decided to take my scripts and create a browser extension out of it. Again the Browser Extension would never be approved to be published on any web store so it requires a manual installation. While doing this I also added the Twitter deleting script into it so it can do both.

Prepare
If you are interested in removing all of your data from Facebook but want to keep your information I would recommend requesting an archive of it. https://accountscenter.facebook.com/info_and_permissions/dyi a
This takes several days, and maybe longer than a week for the archive to be prepared so you should do this first thing.

Do the thing
There are further instructions at the Github Page where the extension is located.