During these years, the interface of the Facebook web page underwent several modifications ranging from the wall to the newspaper. But the option to customize the wallpaper is never there. The only things you can personalize are your profile picture and the cover picture.
Steps
Method 1 of 2: Use Google Chrome

Step 1. Open Google Chrome

Step 2. Go to the Chrome Web Store page at

Step 3. Download the app named Stylish

Step 4. Go to www
userstyles, once Stylish has been added to Google Chrome.

Step 5. Type "Facebook" into the search bar in the upper left section of the window
This will display all the wallpapers that are compatible with Facebook.

Step 6. Click on the wallpaper you want to see details for

Step 7. Choose Install with Stylish
When the page asks for confirmation, just click OK to continue.

Step 8. Open your Facebook account in a new tab
Your Facebook wallpaper would then be the theme you installed.
Method 2 of 2: Use Mozilla Firefox

Step 1. Open Mozilla Firefox

Step 2. Click on the menu button in the upper right corner of the navigation window

Step 3. Select Extensions from the menu list

Step 4. Find the extension named Stylish

Step 5. Click Install when it appears in the search results, to download it

Step 6. Restart Mozilla Firefox

Step 7. Go to www
userstyles.

Step 8. Type Facebook into the search bar in the upper left section of the window
This will display all the wallpapers that are compatible with Facebook.

Step 9. Click on the wallpaper you want to see details for

Step 10. Select Install with Stylish
When the page asks for confirmation, just click OK to continue.

Step 11. Open your Facebook account in a new tab
Your Facebook wallpaper would then be the theme you installed.
Advice
- Changing the wallpaper is not displayed publicly. Only you can see this and the design of your Facebook profile will remain the same in the eyes of your friends.
- Some wallpapers can only be applied on the login page
- There are other apps or extensions that also change your wallpaper. Some are free while others are chargeable.
- You can also use Stylish to change your wallpaper on other sites such as YouTube.