Facebook is website created to connect people and allow them to share information, interests, events and photos. There are many features on Facebook that allow for privacy and security. When creating a Facebook account, the system automatically assigns the user an identification number, known as the Facebook ID. In an update done in the spring of 2009, a user's Facebook ID number was replaced with a "vanity" user name of the Facebook member's choice. Finding the former Facebook ID number is still possible.
Go to the Facebook site and log in to your account.
Click on the word "Profile" that can be found at the top left of the page. This will bring you to your personal profile page. Several tabs including "Wall," "Photos," "Info" and "Boxes" appear under your name.
Click on the tab "Photos" just below your name. Your photo albums will be visible once the page loads.
Click any of the photos in your album. Once the photo loads, move your mouse to the URL bar in your browser. This is where you would normally type in a Web address.
Move the cursor to the end of the URL, if needed. Some URLs are short enough that the number will be visible immediately. Look for a series of numbers. There may be more than one series of numbers in the URL. Find the set that follows "id=". This is your Facebook ID.