The Firefox/Mozilla Thread in Software Posted March 8, 2017 nukecad where did you get FF52 from? I got it direct from Mozilla, when Firefox came up with the usual upgrade popup and I clicked on the 'Upgrade Now' button. Like I said above I've got the autofill of usernames and passwords in forms working now by going to about:config and toggling 'signon.autofillForms.http' from false to true. The actual warning notice itself and the blocking seem to be controlled by 'security.insecure_field_warning.contextual.enabled' and 'security.insecure_password.ui.enabled'. However if I toggle these to false to get rid of the warnings then logins are blocked altogether. (I suspect that this is intentional- either warning or blocked altgether). Even odder- The one site that I reported as still being blocked seems to have had had the password changed at the forum itself. Once I did the 'Forgotten Password' thing to get a new password I was able to login to it with that new password, and to change it back to my previous, saved password. It now logs in from Firefox with that previously saved password again. This is a bit incredible to say the least and I'm not sure just how Firefox could even have done that. I am still investigating that one with the forum administrator there, he should be able to retrieve any password changes made to check if Firefox did somehow manage to change the password. I certainly hadn't. I suspect though that it is something deeper, I should also have not been able to reset it to a previously used password, the forum software will not allow that. (I mod there, so I login to that site 2 or 3 times daily using the password saved in Firefox some time ago).