If the user enables the SSL Obseravtory in non-Torbutton mode, and they land on a network that MITMs TLS, the browser will render a stream of certificate warnings caused by Observatory submissions. What we should do instead is save up the certs for submission once the network stops attacking us. This can be achieved with [nsIBadCertListener2](https://developer.mozilla.org/en/nsIBadCertListener2). This is probably blocking the popup for the Observatory for non-Torbutton users.