...
You should see something like this: 
Then when you hit enter it will build and load the browse URL for you:
The current version assumes HTTP (not HTTPS) protocol, a browse port of 50075, and a NameNode info port of 50070.
To install, open a Chrome tab pointing to chrome://chrome/extensions/ and drag the CRX file (saved from the above link) onto the page.
I welcome your questions, comments, and suggestions, feel free to email me at mburgess@pentaho.com.