In Chrome, you can follow these steps to add the extension:

1. Download the extension file from the website and save it to your computer.

2. Click the wrench icon on the browser toolbar. Select Tools > Extensions.

3. Locate the extension file on your computer and drag the file onto the Extensions page.

4. Review the list of permissions in the dialog that appears. If you would like to proceed, click Install.

--http://support.google.com/chrome_webstore/bin/answer.py?hl=e...

But you can still drag and drop it on the Chrome extensions page or use the load button.

Huh, I never even realized that Chrome had removed the ability to install extensions from third party websites. I'll get that up on the chrome web store when I get some time.

fwiw, I published the extension on the chrome web store:

https://chrome.google.com/webstore/detail/mnlaodleonmmfkdhfo...