On Thu, 24 Jul 2008, Rod Widdowson wrote: > ... there are some intermediate certs which are in IE but not in > firefox. Additionally, IE seems to be able to use the 'Authority Information Access' extension included in some certificates (including JANET SCS ones) to automatically retrieve intermediate certificates on the fly. Firefox 2 didn't do this; I don't know about Firefox 3. Jon. -- Jon Warbrick Web/News Development, Computing Service, University of Cambridge