I have tried clearing my entire browsing history, cache, etc., and restarting, as well as clearing the cache just for the site. I don't have this issue with Chrome. The issue is problematic because the http page can't be reached, and besides, https is more secure. I have contacted Contact Space, and a rep, Dominic Franklin, said "Clear your browser cache, cookies etc and restart your browser and computer. That will help. I am sorry that you are annoyed with this but this is not a contactSPACE problem." Again, I tried this and told him that that didn't work. I've also tried using the HTTPS everywhere extension, but that didn't help.