Diễn đàn hỗ trợ Firefox

I started with Firefox in 2000. I listed my email as [edited] @sbcglobal.net. It appears that company was bought out by another provider (ATT?). I need to remove sbcglobal and replace it with a new email address but to do so I need a code, but Mozilla will only send it to the sbcglobal site. How can I change? Thanks in advance

am experiencing an issue where my Mozilla account logs out automatically every time I shut down my Windows PC. Each morning when I start the PC and open Firefox, I am required to log in to my Mozilla account again.

Here are some details about my setup and troubleshooting attempts:

   Operating System:  Windows version Windows 10 Pro
   Firefox Version: latest version
   Steps Tried:
       Ensured that "Delete cookies and site data when Firefox is closed" is unchecked.
       Verified that "Clear history when Firefox closes" is disabled.
       Logged out and re-signed into my Mozilla account.
       Checked for browser updates and ensured I’m on the latest version.
       Tested without extensions by using Troubleshoot Mode.