Finalmarco

This plugin remove the “Are you sure you want to log out?” confirmation page once an user logout.
After the logout the plugin lets you choose from redirect:
<ul>
<li>Same page</li>
<li>Login page</li>
<li>Homepage</li>
<li>Custom page</li>
</ul>

Direct Logout

This plugin let your users logout from woocommerce without Confirmation.

Nate Reist

This plugin simply adds a logout button to the content of any password protected post. Sometimes clients want a password protected page to share information with privileged individuals and the default 10 days for the cookie to expire is too long for their liking. So I wrote a little plugin to do this with AJAX and set the cookie to expire immediately, well actually 10 days in the past.
<ul>
<li>Works logged in or out as a WordPress user.</li>
<li>Uses the same functionality WordPress uses to set post cookies.</li>
<li>Has a simple settings page to make everything easier.</li>
<li>Allows you to alert user they have logged out.</li>
</ul>

Protected Posts Logout Button

Automatically adds a logout button to your password protected content.

Direct Logout vs Protected Posts Logout Button