Switching Facebook to dark mode on a Mac or PC computer is simple.
The video above covers all the steps and written instructions are also below.
Step 1: Click on your profile image in the top right hand corner.
Step 2: Then click “Display and accessibility.”
Step 3: Under “Dark Mode” Click “On”
You also have the option to change it to automatic which will use your devices system settings to decide whether Facebook shows in light mode or dark mode.