I have a strange problem on my website that I can not work out. It used to work fine but I did an upgrade on Friday and now Firefox 3.0.8 says that secure URLs (https) are not encrypted. The odd thing is that other browsers such as Safari 3.2.1 and Opera 9.64 say that the connection is secure when I visit those URLs. Why does Firefox think these URLs are insecure, when all the other browsers think it is fine? I run an ecommerce site so it is of vital importance to get this fixed.