
Featured Image Admin Thumb
by Sean Hayes on WordPress.org
Adds inline thumbnail image to admin columns on Post/post types view (where supported). Click to easily set/change the featured image.

This shows the Thumb column in the All Pages/Posts admin view and in this case a thumbnail is available and shown. There would be a blank space if no thumbnail was found for the post or page.
When active this plugin adds a column to the All Posts/All Pages and where supported the All Custom Post Type admin views. This column, “Thumb”, will display a thumbnail of the featured image
or post thumbnail so you can easily determine the content that is missing an image.
You can also make inline edits that allow you to change the thumb/image from the All Posts/All Pages/All Custom Post Type view without having to edit the post.
Now the plugin is translatable. Using tools such as Poedit along with localized / international versions of WordPress, FIAT can display user supplied translations of its text.