How to add custom image on Facebook posts

There is a way to load a custom image on Facebook Posts before you publish them (in case the photo does not automatically load or you just want to use another one).

Here's how:

Step 1:
Click the + sign under the "Available Images" option.
Inline image 1
Step 2:
Choose the image you want to upload from your local hard disk.
Inline image 2
Step 3:
Your image is loaded, you're all set. Hit publish to submit your post!
Inline image 3