Lion forces ssl authentication for any browser

Hello,

i have something changed (but i do not know what), and after that i get an ssl authentication for a lot of sites i want to visit with any of my browsers (safari, chrome). For example when i want to visit apple developer site i don't see any pictures and all the site is not displayed well generally.

I have detected that there the protocol the site want to open is for that site https which is wrong.

https://www.amazon.com/ap/signin?_encoding
https://developer.apple.com/

Can someone help please this is getting annoying

Thx in advanced