You can link to any profile using the format ://facebook.com[ID] , which works even if the person changes their username. Quick Summary
Here is exactly how to find yours—or anyone else's—in just a few seconds. What is an FBID? find my fbid
If a user hasn't set a custom username, their URL will look like this: ://facebook.com . In this case, 123456789 is the ID. You can link to any profile using the format ://facebook
This is the most reliable way to find your own ID or a friend’s ID without using third-party tools. If a user hasn't set a custom username,
Right-click anywhere on the page and select "View Page Source" (or press Ctrl + U on Windows, Cmd + Option + U on Mac).
If you don't want to dig through code, several websites can do the work for you. Sites like CommentPicker , Lookup-ID , or FindMyFBID allow you to paste the profile URL, and they will extract the numerical ID for you.
Press Ctrl + F (or Cmd + F ) to open the search bar.