Have you been to the Chrome Web Store lately? Well, if you haven't, there have been a few changes. Now when you add an app or extension to your Chrome browser the word Added will appear in green across the side of the icon. Also, listed to the right of the icon, you will notice that it now indicates whether the app or extension is available for your Android phone.
You can also find out if the app or extension is available for Android by dropping down the Show button.