View Sourcehttpsweb Facebook -

Does not update if the page content changes dynamically while you are looking at it. Inspect Element (Developer Tools)

The browser command "view-source:facebook.com" allows users to inspect the HTML code of a Facebook page, primarily for finding numeric user IDs and debugging web issues. This technique is often used in digital forensics and by developers to identify underlying profile data or analyze page scripts. You can find detailed guides on using this tool on forensic investigative websites. view sourcehttpsweb facebook

This is a hacking technique known as Self-Cross-Site Scripting (Self-XSS). If you paste malicious scripts into your console, hackers can: Steal your Facebook login credentials and session tokens. Post spam or malicious links from your account. Lock you out of your profile permanently. Does not update if the page content changes

Right-click on any empty space on the page (avoid clicking on images or links). You can find detailed guides on using this

How to insert code in the head section of a website? - Facebook