On numerous occasions I have felt that the Keychain function in Mavericks doesn't work as advertised. Now I finally have proof. This site manages packing slips: https://po.unifaun.se I have an account and password. They are stored in the Keychain and I can also locate them in Safari Preferences > Passwords. But there is no way for me to get that formed autofilled!! BUT however, it suggests new password if you place the cursor in the password field. Ie, Safari understands that it actually is a password form. This worked on this site in 10.8. Any ideas??!