tsaiid

Featured Image via URL is a plugin to generate the featured image of post from the image url specified. 
The image will be fetched back and saved into the Media Library with all supported sizes. 
If the featured image is already present, the plugin will do nothing.
This plugin is modified from Auto Post Thumbnail by adityamooley.
For more details, see http://tsai.it/project/wordpress-plugins/featured-image-via-url/

Featured Image via URL

Automatically generate the Featured Image from the specified image url in post.

Minor

Today it’s really important to have everything up to date (security, compatibility, new features and performance). Default WordPress setting is automatically install just minor core updates and languages.
No settings required. Just install and active this plugin and your WordPress (including plugins and themes) will be up to date.
You can focus on the other things than updating your WordPress, save your time!
<h4>What will be automatically updated too?</h4>
<ul>
<li>Core</li>
<li>Themes</li>
<li>Plugins</li>
</ul>

Auto Updates

The best one of auto update plugins. If you don't agree with me - write a review, please! :-)

Simple, light, easy and no ads

Does exactly what is needed without any extra bloat. Thanks!

Perfect

I checked the code of this plugin before installing it: it does what it says and absolutely nothing else.

It basically just adds the minimum code to enable the auto-updates within WordPress. There is absolutely nothing else in there, which is awesome.

Install this plugin and rest easy it's not bogging down your website like 99% of plugins out there.

Extremely Lightweight and Does What it Says

Let WordPress to automatically update his core, plugins and themes - silently in the background.

Featured Image via URL vs Auto Updates