I am changing firms. Do I need to establish a new e-filing login and password?

No, you do not need to register for CM/ECF more than once. Your ECF User login is issued specifically to you. Even if you change firms, your login remains valid.

However, you must update your address, including any changes to your e-mail address, with the court. You can do this by electronically e-filing form G-6 in all pending cases, which fulfills the Local Rule 83.2-7 requirement to notify opposing counsel of the change. Then log into CM/ECF >Utilities (on the blue menu bar) and updating your information through Maintain Your Address and Maintain Your E-Mail Address.