See comments section for more up-to-date versions of the script. The original script is from 2014 and will not work as is.
- Open news feed preferences on your Facebook menu (browser)
- Click people or pages
- Scroll down (or click see more) until your full list is loaded
- Run the script in your browser console
Facebook will block this feature for you while you use it, depending on how much entities you try to unfollow. It automatically unblocks in a couple of hours and you will be able to continue.
@mursman @Revenant4 @victorlin I wrote a script that I think will solve your problem. Just make sure before you run it, you scroll down the list of followed pages as long as you can, in order for it to reach all the users. Here's the script (and yes, a human being typed it all up, sorta):
Only tested in Desktop Chrome and intended on the page: https://www.facebook.com/{username}/following