Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

ఇంకా తెలుసుకోండి

Firefox secured sites are not loading with Avast installed.

  • 2 ప్రత్యుత్తరాలు
  • 1 ఈ సమస్య కలిగినది
  • 2 వీక్షణలు
  • చివరి సమాధానమిచ్చినది jscher2000 - Support Volunteer

more options

None of the Firefox sites are working. Google, Yahoo, all the major sites are not working. It displays error page "This Connection is Untrusted". Technical Details: Error code: sec_error_unknown_issuer

I have the latest version of Firefox installed (43.0) on a new Macbook Pro on El Capitan. I presume the problem is with Avast installed and they are not talking correctly to each other. All my other web browsers work fine, it is just with Firefox.

Once I disable "Scan secured connections" in Avast, all works fine. Is this an Avast issue or Firefox issue?

None of the Firefox sites are working. Google, Yahoo, all the major sites are not working. It displays error page "This Connection is Untrusted". Technical Details: Error code: sec_error_unknown_issuer I have the latest version of Firefox installed (43.0) on a new Macbook Pro on El Capitan. I presume the problem is with Avast installed and they are not talking correctly to each other. All my other web browsers work fine, it is just with Firefox. Once I disable "Scan secured connections" in Avast, all works fine. Is this an Avast issue or Firefox issue?

ప్రత్యుత్తరాలన్నీ (2)

more options

There is security software like Avast and Kaspersky and BitDefender and ESET that intercept secure connections and send their own certificate.

If you have Avast then try to disable HTTPS scanning in Avast Web Shield.

more options

Avast is designed to set up Firefox automatically, but this doesn't always work. If rebooting your Mac doesn't trigger Avast to add its signing certificate to Firefox, maybe you can find steps in the Avast forums to do it.