Internal apps are hard for Firefox devs to debug, but I've had success in the past debugging problems in internal apps by using a test account where the develop

Internal apps are hard for Firefox devs to debug, but I've had success in the past debugging problems in internal apps by using a test account where the developers have emailed the login details to me privately. If you are able to provide such a test account, please file a bug at https://bugzilla.mozilla.org/enter_bug.cgi; https://bugzilla.mozilla.org/enter_bug.cgi; use "Core :: General" in the "find product" box; and don't worry too much about most of the fields, the title and description are the most important; and also add ":njn" to the "CC" field. Say something like "I can provide login details privately". If you can do that, I'll try to find the right person to address it.