This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

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.

Learn More

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

I'm getting an insucure connection warning caused by pixel.mathtag.com

  • 1 reply
  • 1 has this problem
  • 26 views
  • Last reply by cor-el

RamblinMan211
RamblinMan211
more options

Trying to access my.eBay.com and I'm getting this warning..my.ebay.com uses an invalid security certificate. The certificate is only valid for pixel.mathtag.com. Error code: SSL_ERROR_BAD_CERT_DOMAIN How do I rid myself of pixel.mathtag.com and what exactly is it? Microsoft Security Essentials does not recognize this as a threat.

Trying to access my.eBay.com and I'm getting this warning..my.ebay.com uses an invalid security certificate. The certificate is only valid for pixel.mathtag.com. Error code: SSL_ERROR_BAD_CERT_DOMAIN How do I rid myself of pixel.mathtag.com and what exactly is it? Microsoft Security Essentials does not recognize this as a threat.

All Replies (1)

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

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.

See also: