freemp

A simple, lightweight WordPress plugin for displaying a notification bar at the top of the webpage if 1st-party JavaScript is disabled. If appropriate, the entire website may as well be blocked by a full-page overlay instead of just a small bar.
The plugin offers configuration of background and foreground color, opacity, notification message text and font size. Individual customization by means of CSS snippets is also supported.

JavaScript Notifier

JavaScript Notifier allows you to inform visitors that your website requires JavaScript.

A lightweight WordPress plugin providing the <code>[recaptcha-js-alert]</code> shortcode which may be used to display a notification text box if JavaScript required by reCAPTCHA is being blocked.
Next to the notification message text and the delay allowing to load the reCAPTCHA JavaScript code, the plugin offers configuration of background and foreground color, as well as the font size. Further customization can be achieved by means of custom CSS snippets.
The shortcode allows its configuration being overridden by the following parameters:
<ul>
<li><code>message</code>: The notification message text</li>
<li><code>style</code>: Custom CSS for displaying the message text</li>
<li><code>delay</code>: The delay (in milliseconds) allowing the reCAPTCHA JavaScript code to load</li>
</ul>

ReCaptcha JS Alert

ReCaptcha JS Alert provides the [recaptcha-js-alert] shortcode, which (if necessary) informs visitors of your website that a form requires JavaScript  …

JavaScript Notifier vs ReCaptcha JS Alert