The Visitor Login Notice plugin displays a notice to non-logged in users reminding them to login to your website.
Features
Display a sticky login notice bar (visible even if when user scrolls).
Choose position on your website where the notice will be displayed (header / footer).
Customize the notice title & message.
Add custom login and/or registration URLs.
Add a custom button to display on the notice bar, if needed.
Show / hide the notice from login & registration pages and exclude specific URLs.
Allow close functionality. When the user closes the notice, the plugin stores a cookie on the user’s browser. If the cookie is present, the notice will not be shown again to the user.