There is a known issue with trying to authenticate off-campus using Firefox version 39.0. You may have received a "Secure Connection Failed" error message. The current work around is to click on this link to install the Disable-DHE Add-On for Firefox.
Once you navigate to the link above, click the green button to add it to Firefox. Once the add-on is installed, return to and click on the database you were initially trying to access.