We have seen already that Firefox provides users with an option to see the saved password using the Show Password feature. But if you are moving to a different machine and want to copy the saved password from Firefox then you can use Password Exporter Add-on.
Install the Password Exported Firefox Add-on
Click Tools menu, select Options from the menu list. In the Firefox Options window, click the Security tab.
Navigate to Passwords section under the Security tab. Now you would be able to see another button with label as Import/Export Passwords. On clicking the Import/Export Passwords should launch the below window.
If you want to be more secure with your password export then select Obfuscate Usernames/Passwords and click Export Passwords. Click the I Accept button to continue with the password export
Specify the filename and folder location for your password export file.
You will see the following confirmation message once the Password Export is complete.