Set as desktop background is a Chrome extension that allows you to change your desktop wallpaper directly from your web browser. With this extension, you can easily customize your desktop with any image you find online.

To use Set as desktop background, you will need to install Python and a script that serves as the native application and messaging host required to make changes to your computer. The extension provides links and further instructions in the options page to guide you through the installation process.

Once installed, Set as desktop background enables you to save the most recent wallpaper to your computer. This feature ensures that you can easily access and use your favorite wallpapers even without an internet connection.

Overall, Set as desktop background is a convenient and user-friendly extension for Chrome users who want to personalize their desktop with ease.