This is a Chrome extension that automatically add direct download buttons to Magento Connect pages.
This way you can manually download the extensions and unzip them in your Magento folder.
You can install it from here : Magento Connect Direct Download.
The extension's icon comes from "Kameleon Free Pack - Rounded".
This Chrome extension is not affiliated with Magento, Inc. "Magento" and its logo are trademarks and registered trademarks of Magento, Inc. All other companies and product names are trademarks or registered trademarks of their respective companies.