To unblock someone on Facebook, you can use either the desktop website or the mobile app

. Once you unblock someone, you will be able to see their posts and send them messages again

. Unblocking someone will also re-add them to your Friends list if you were friends before

. Unblocking on the Facebook Website:

1. Click your profile photo in the top-right corner

2. Go to Settings & privacy and then click Settings

3. In the column on the left side of the screen, click Privacy then Blocking

4. Go to the Blocked Users section and click Edit. Click See your blocked list

5. Next to the person's name, click Unblock

6. In the pop-up window, click Confirm

Unblocking on the Facebook Mobile App:

1. Open the Facebook app and tap the Menu button, which is in the bottom-right corner on an iPhone, or the top-right corner on an Android device

2. In the Menu page, tap Settings & Privacy, then Settings

3. On the Settings page, scroll down and tap Blocking

4. Next to the person's name, tap Unblock , and then confirm by tapping Unblock again