Reconfiguring A Virtual Disk Displays Error In Mozilla Browser
Although this page is encrypted, the information you have entered is to be sent over an unencrypted connection and could easily be read by a third party.
You can disable this error message by changing the settings in the browser. To disable this error message:
Select Edit > Preferences.
Click Privacy and Security.
Click SSL.
Clear the Sending form data from an unencrypted page to an unencrypted page option.