The documentation explains how to use a proxy server for internet connectivity but is there a way to specify a username and password as well?
We are currently looking into this. I have to admit you are the first user to need username and password for your proxy settings. I do know that curl supports it, but I do not believe that this is currently handled by Konfabulator. I have sent an e-mail to the developer and will follow up with him tomorrow to see when we could get this added as a feature.