Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

Avatar for Username

ابحث في الدعم

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.

Learn More

This thread was archived. Please ask a new question if you need help.

Getting 'Your connection is not secure'. Many websites i try are blocked by firefox.

  • 4 ردود
  • 1 has this problem
  • 1 view
  • آخر ردّ كتبه Ronald Blair

Ronald Blair
Ronald Blair
more options

Sites like yahoo mail....google...Bing and more are blocked [ this never happened before.] I recently had to re-install Windows 10 then Bitdefender anti virus and Malwarebytes......maybe that has something to do with it. Sometimes....but not always... i am given the opportunity to enter 'an exception' Your help would be much appreciated....I need to get access to all sites without blocking

Sites like yahoo mail....google...Bing and more are blocked [ this never happened before.] I recently had to re-install Windows 10 then Bitdefender anti virus and Malwarebytes......maybe that has something to do with it. Sometimes....but not always... i am given the opportunity to enter 'an exception' Your help would be much appreciated....I need to get access to all sites without blocking
Attached screenshots

الحل المُختار

In Bitdefender 2019 you can disable specific modules.

BitDefender Modules -> Online Threat Prevention -> Settings -> Web Protection: Encrypted web scan

Read this answer in context 👍 1

All Replies (4)

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

There is security software like Avast and Kaspersky and BitDefender and ESET that intercepts secure connections and sends their own certificate or that incorporates special web shielding features that can block content.

You can check if there is more detail available about the issuer of the certificate.

  • click the "Advanced" button show more detail
  • click the blue error text (SEC_ERROR_UNKNOWN_ISSUER) to show the certificate chain
  • click "Copy text to clipboard" and paste the base64 certificate chain text in a reply

If clicking the blue error text doesn't provide the certificate chain then try these steps to inspect the certificate.

  • open the Servers tab in the Certificate Manager
    • Options/Preferences -> Privacy & Security
      Certificates: View Certificates -> Servers: "Add Exception"
  • paste the URL of the website (https://xxx.xxx) in it's Location field

Let Firefox retrieve the certificate -> "Get Certificate"

  • click the "View" button and inspect the certificate

You can see detail like the issuer of the certificate and intermediate certificates in the Details tab.

Ronald Blair
Ronald Blair صاحب السؤال
more options

Thank you for replying to my problem.The link you provided provides solutions for the 2015 & 2016 versions of Bitdefender.....i have the 2019 version with totally different 'protection' section

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

الحل المُختار

In Bitdefender 2019 you can disable specific modules.

BitDefender Modules -> Online Threat Prevention -> Settings -> Web Protection: Encrypted web scan

Ronald Blair
Ronald Blair صاحب السؤال
more options

Thank you so much for your help! I followed your instructions and all is fine now with Firefox