Please note the following warning message when attempting to log in
"The information you have entered is to be sent over an unencrypted connection and could easily be read by a third party"
This is not a browser issue. It is on the site side. The information to sign in should be secure. If it gets secured through to the other side, you should create a window indicating it will. Otherwise, the above message essentially says,"We don't care about the security and potential exposure of your computer, but please sign in." And that's a very poor message to send the folks here, IMHO.