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Unsecure website connection error

Posted

Hello, guys!

I have a problem, that is described in this article: https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER

But I decided to ask my question here because I've never had this trouble using usual version of Firefox, and when I've installed Firefox Developer Edition today, I got the trouble with "SEC_ERROR_UNKNOWN_ISSUER" when trying open any website. At the same time, my antivirus Kaspersky is annoyingly popping up attentions about this and asking to "ignore" or to "add to exclusions".

Actually, I've solved this trouble, when I disabled the interception of secure connections (as suggested in the article), but it is very questionable act due to security reasons.

I'd like to ask you to help me with solving the trouble in other way, which doesn't descrease security connection level.

Thank you very much for your time, Best Regards, Anthony

Hello, guys! I have a problem, that is described in this article: https://support.mozilla.org/en-US/kb/troubleshoot-SEC_ERROR_UNKNOWN_ISSUER But I decided to ask my question here because I've never had this trouble using usual version of Firefox, and when I've installed Firefox Developer Edition today, I got the trouble with "SEC_ERROR_UNKNOWN_ISSUER" when trying open any website. At the same time, my antivirus Kaspersky is annoyingly popping up attentions about this and asking to "ignore" or to "add to exclusions". Actually, I've solved this trouble, when I disabled the interception of secure connections (as suggested in the article), but it is very questionable act due to security reasons. I'd like to ask you to help me with solving the trouble in other way, which doesn't descrease security connection level. Thank you very much for your time, Best Regards, Anthony

Chosen solution

Please trust the support article and refer to the 2 pages mentioned in this recent question, then reconsider whether or not there actually is a better solution.

http://www.cbc.ca/news/technology/antivirus-software-1.3668746 https://blog.vpn.ac/disable-https-scanning.html.

Note that you can still choose to keep it enabled after the issue turns out to be temporary for - in this case - Kaspersky.

Read this answer in context 1

Additional System Details

Installed Plug-ins

  • Shockwave Flash 28.0 r0

Application

  • User Agent: Mozilla/5.0 (Windows NT 6.1; Win64; x64; rv:61.0) Gecko/20100101 Firefox/61.0

More Information

Tonnes
  • Locale Leader
246 solutions 1454 answers

Chosen Solution

Please trust the support article and refer to the 2 pages mentioned in this recent question, then reconsider whether or not there actually is a better solution.

http://www.cbc.ca/news/technology/antivirus-software-1.3668746 https://blog.vpn.ac/disable-https-scanning.html.

Note that you can still choose to keep it enabled after the issue turns out to be temporary for - in this case - Kaspersky.

Please trust the support article and refer to the 2 pages mentioned in [/questions/1220244 this recent question], then reconsider whether or not there actually ''is'' a better solution. http://www.cbc.ca/news/technology/antivirus-software-1.3668746 https://blog.vpn.ac/disable-https-scanning.html. Note that you can still choose to keep it enabled after the issue turns out to be temporary for - in this case - Kaspersky.

Question owner

Okay, I get it. Looks like, the best solution is just to keep https scanning disabled in antivirus' settings.

Thank you very much, Tonnes. Have a nice day!

Okay, I get it. Looks like, the best solution is just to keep https scanning disabled in antivirus' settings. Thank you very much, Tonnes. Have a nice day!
Tonnes
  • Locale Leader
246 solutions 1454 answers

Glad to help. Likewise!

Glad to help. Likewise!