Lucy Tomas

<p>Very simple plugin that will search for all the first images of your published posts, pages or custom post types and set them as the featured image.</p>
<ul>
<li>You can choose the post type you want to run the plugin on.</li>
<li>Option to overwrite the already selected futured images.</li>
<li>Option to select From / To date.</li>
</ul>


Set All First Images As Featured

still works

It simply didn't recognize any images in any of the posts, and so didn't work. :(

Didn't see the images in the posts

IT works on 5.0.3

Sets the first image of your posts, pages or custom post types as the featured image.

Jason

<p>The <a href="http://wpjumpstart.com" rel="nofollow ugc">Jump Start</a> theme had a feature for adding banners to pages and posts in v2.0. However, in v2.1 this feature was removed in favor of a better system of implementing the standard WordPress featured image for a similar effect. For those that want to continue relying on the previous banner feature, this plugin restores that functionality in Jump Start 2.1+.</p>


Jump Start Banners

Restores the banner functionality from Jump Start v2.0, when updating to v2.1+.

Set All First Images As Featured vs Jump Start Banners