Jonathan Bardo

Note: This plugin only works with WordPress 4.2 or higher
This plugin will enable the site administrator to easily create an admin message present on all pages. The admin has the option to let the user dismiss the message for the duration of his session.

Admin User Message

This does just what I want. Thanks for making it. :)
It's definitely better than https://wordpress.org/plugins/admin-screen-messages
You might want to also tag it as:
https://wordpress.org/plugins/tags/admin-message



Perfect

Add message to users of your site. Choose wheter they can dismiss it or not.

aiyaz Khorajia

Popup for Contact Form 7 plugin will display the fully customizable and beautiful popup when contact form 7 is submitted. you can customize text, font-color, popup size etc.
Contact Form 7 Popup features:
<ul>
<li>Shows popup when form submitted successfully.</li>
<li>You can customize popup content, background and font color.</li>
<li>Popup is fully responsive and compatible in all major browser.</li>
</ul>

Popup for Contact Form 7

Easy to use yet attractive popup message on form submit.



Attractive Popup for Contact form 7

This plugin will show the popup when Contact Form 7 has been submitted. You can customize popup title, message and colors from backend.

Admin User Message vs Popup for Contact Form 7