Author Topic: SEC_ERROR_UNKNOWN_ISSUER  (Read 793 times)

0 Members and 1 Guest are viewing this topic.

Offline damole

  • Newbie
  • *
  • Posts: 3
SEC_ERROR_UNKNOWN_ISSUER
« on: May 31, 2018, 02:55:33 PM »
For the last month or so I find myself for a short time that all websites produce this error in Firefox.  I always have the latest version of FF and I'm using the latest version of Windows 10. 


If I turn of web shield then I can view the websites normally.  The problem normally goes away at some point during the day.

Offline Asyn

  • Avast √úberevangelist
  • Certainly Bot
  • *****
  • Posts: 76079
  • Urlaub/Vacation
    • >>>  Avast Forum - Deutschsprachiger Bereich  <<<
Re: SEC_ERROR_UNKNOWN_ISSUER
« Reply #1 on: May 31, 2018, 03:14:28 PM »
- Which Avast..? (Free/Pro/IS/Premier)
- Which version..?
- OS..? (32/64 Bit..? - which SP/Build..?)
- Other security related software installed..?
- Which AV(s) did you use before Avast..?
W8.1 [x64] - Avast PremSec 22.7.7366.BC [UI.713] - Firefox ESR 91.11 [NS/uBO/PB] - Thunderbird 91.11
Avast-Tools: Secure Browser 103.0 - Cleanup 22.2 - SecureLine 5.18 - DriverUpdater 22.2 - CCleaner 6.01
Avast Wissenswertes (Downloads, Anleitungen & Infos): https://forum.avast.com/index.php?topic=60523.0