Hello @rchrd_caldwell​,
My name is Alejandra and I am happy to assist with your inquiry, and appreciate you contacting LastPass Support!
I hope this message finds you well. If you like that lastpass will start up automatically the best option is to install the extension in the browser. Log in and then the system should keep you login unless that you change your network or use VPN to hide the network IP address, update your browser, clear cache and cookies or set up rules inside the extension to auto-log out.
Kind Regards,
Alejandra
LastPass Tech Support