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  2. Fix security certificate error messages in Internet Explorer

    help.aol.com/articles/message-the-security...

    Seeing security certificate errors when visiting certain websites? Learn how to remedy this issue in Internet Explorer. AOL APP. News / Email / Weather / Video. GET.

  3. Online Certificate Status Protocol - Wikipedia

    en.wikipedia.org/wiki/Online_Certificate_Status...

    The OCSP responder uses the certificate serial number to look up the revocation status of Alice's certificate. The OCSP responder looks in a CA database that Carol maintains. In this scenario, Carol's CA database is the only trusted location where a compromise to Alice's certificate would be recorded.

  4. Firefox disabled all add-ons because a certificate expired ...

    www.aol.com/news/2019-05-03-firefox-extension...

    Many Firefox users around the world are browsing without their usual set of extensions after they suddenly stopped working earlier this evening. The event occurred as the clock rolled over on UTC ...

  5. Certificate Transparency - Wikipedia

    en.wikipedia.org/wiki/Certificate_Transparency

    An example of Certificate Transparency entry on Firefox 89. In 2011, a reseller of the certificate authority Comodo was attacked and the certificate authority DigiNotar was compromised, [19] demonstrating existing flaws in the certificate authority ecosystem and prompting work on various mechanisms to prevent or monitor unauthorized certificate ...

  6. HTTPS - Wikipedia

    https://en.wikipedia.org/wiki/HTTPS

    This is an accepted version of this page This is the latest accepted revision, reviewed on 24 January 2025. Extension of the HTTP communications protocol to support TLS encryption Internet protocol suite Application layer BGP DHCP (v6) DNS FTP HTTP (HTTP/3) HTTPS IMAP IRC LDAP MGCP MQTT NNTP NTP OSPF POP PTP ONC/RPC RTP RTSP RIP SIP SMTP SNMP SSH Telnet TLS/SSL XMPP more... Transport layer TCP ...

  7. Firefox - Wikipedia

    en.wikipedia.org/wiki/Firefox

    Mozilla Firefox, or simply Firefox, is a free and open source [12] web browser developed by the Mozilla Foundation and its subsidiary, the Mozilla Corporation. It uses the Gecko rendering engine to display web pages, which implements current and anticipated web standards. [ 13 ]

  8. HTTP Strict Transport Security - Wikipedia

    en.wikipedia.org/wiki/HTTP_Strict_Transport_Security

    Settings page for HTTPS Strict Transport Security within Chromium 45, showing the status of the security policy for the domain "en.wikipedia.org". Chromium and Google Chrome since version 4.0.211.0 [21] [22] Firefox since version 4; [1] with Firefox 17, Mozilla integrates a list of websites supporting HSTS. [12] Opera since version 12 [23]

  9. HTTP Public Key Pinning - Wikipedia

    en.wikipedia.org/wiki/HTTP_Public_Key_Pinning

    A server uses it to deliver to the client (e.g. a web browser) a set of hashes of public keys that must appear in the certificate chain of future connections to the same domain name. For example, attackers might compromise a certificate authority , and then mis-issue certificates for a web origin .