From the Author of this Plug-In

First: this project is made for my personal needs, then I decide to publish it because I think some people may need it. This is not a tool for pirating. It’s good or bad depend on how you use it. Please don’t make me look bad because of this.

APK Downloader is a Google Chrome extension that allows you to download Android APK files from Android Market to your PC

Full Details – Linky