Arefly

<p>Busy with setting every post’s first image to the Featured Image?</p>
<p>Use this plugin instead!</p>
<p>This plugin will auto set the first image of your post (for new posts only) to Featured Image.</p>
<p>If you do not want set the first image, you can still set your own Featured Image.</p>
<h4>How Does It Work?</h4>
<p>You do not need to set anything after you install and no any options.</p>
<p>The plugin will auto set the first image of your new posts to Featured Image.</p>
<h4>How to exclude a specific post?</h4>
<ol>
<li>
<p>Go in to the post/page you do not want to autoset Featured Image.</p>
</li>
<li>
<p>Find Meta Box name “Custom Field”.</p>
</li>
<li>
<p>Click “Enter new”.</p>
</li>
<li>
<p>Enter “no_featured_image” in Name Table and enter anything in Value Table.</p>
</li>
</ol>


Autoset Featured Image

I can see how this would be useful, though, but for my purposes and by the name of it, I was hoping it'd go through old posts and, if they didn't have a featured image, set the first image.



Wish it worked for existing posts...

Auto Set the first image of your post to Featured Image.

YITHEMES

<p>YITH WooCommerce Featured Video plugin is an extension for the WooCommerce plugin that allows your users to see a YouTube or Vimeo video instead of the featured image of the product detail page.<br />
Add the URL of YouTube or Vimeo video in the specific field of the product configuration page and your customers will have the pleasure to watch something dynamic and cutomized.</p>
<p>For a more detailed list of options and features of the plugin, please read the <a href="https://yithemes.com/docs-plugins/yith-woocommerce-featured-audio-video-content/" title="YITH WooCommerce Featured Video official documentation" rel="nofollow ugc">official documentation</a>.</p>
<h4>Languages</h4>
<p>Also available in:</p>
<ul>
<li>English</li>
<li>Italian</li>
</ul>
<h4>Installation</h4>
<p>Once you have installed the plugin, you just need to activate the plugin in order to enable it.</p>
<h4>Configuration</h4>
<p>YITH WooCommerce Featured Video will add a new submenu called “Featured Video” in “YIT Plugins” menu. From here you can configure all plugin settings.<br />
You will be able to add your video in your products following these steps:</p>
<ol>
<li>Open the configuration page of the product where you want to set the featured video;</li>
<li>Set the URL of video in the “Featured Video URL” field, in the “Product Data” box.</li>
</ol>


YITH WooCommerce Featured Video


Don't waste your time, they are just wanting to sell the upgrade.


Useless Plugin

YITH WooCommerce Featured Video allows you to place a video in the product detail page instead of the featured image.

Autoset Featured Image vs YITH WooCommerce Featured Video