A Primer Lee Ridgway Certificates authenticate users and servers to ensure secure transactions over the Web. When you make the transition from Netscape 3 to Netscape 4.05, your Web certificates may not transfer.
Certificates expire after a year.
Yours may need to be renewed soon, depending on when you first got them. Additionally, certificates now play a key role in how MIT-restricted Web pages are accessed from off campus. IS recommends that you set specific security preferences in Netscape, to improve your experience when browsing these and other sites. One solution is to delete the old certificates and obtain new ones. A faster workaround is to delete your browser password in Netscape 3, then open Netscape 4.05.