Enforce Encryption 1.0.5 with Firefox 44 doesn't work in private window. It used to work until recently.
When writing in the address bar a http: URL to a site for which "Encrypted connection enforced" is turned on, it is correctly changed to https: in normal window, but remains http: in private window. Toggling "Encrypted connection enforced" from either window works, but again the "Yes" setting only has effect in normal window.