Edit Facebook Login Page with Browser Hack:

       IN GOOGLE CHROME

• Go to facebook.com, the usual facebook login page.
• Now, clear the address bar. Copy the code below and paste it in your address bar.

javascript:document.body.contentEditable='true'; document.designMode='on'; void 0

• Make sure that javascript: is present at the beginning of the code or else this trick doesn't work.Then hit Enter

• Once you have completed above step, you can easily edit all the contents of the Facebook login page.

• Eg. Select any text and hit on Backspace. The text will be deleted.  

   

• In this way, you can easily add your name to the Facebook page.