We're calling on all EU-based Mozillians with iOS or iPadOS devices to help us monitor Apple’s new browser choice screens. Join the effort to hold Big Tech to account!

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

When I go to first-online.com, Firefox tells me that the site is not trusted. How do new certificate types get added into Firefox?

more options

I don't know much about site certificates (that's my disclaimer). When I go to first-online.com, Firefox tells me that the site is not trusted. I do know that this site uses a Verisign Extended Validation Certificate....and this type of certificate is not listed when I look in my Firefox settings.

How do new certificate types get added into Firefox? Should the first-online.com website send information to Firefox, which would add this type of certificate into Firefox?

Thanks in advance for any advice.

I don't know much about site certificates (that's my disclaimer). When I go to first-online.com, Firefox tells me that the site is not trusted. I do know that this site uses a Verisign Extended Validation Certificate....and this type of certificate is not listed when I look in my Firefox settings. How do new certificate types get added into Firefox? Should the first-online.com website send information to Firefox, which would add this type of certificate into Firefox? Thanks in advance for any advice.

Chosen solution

The www.first-online.com server doesn't send a required intermediate certificate (VeriSign Class 3 Extended Validation SSL SGC CA).

You can inspect the certificate chain via a site like this:

Read this answer in context 👍 1

All Replies (2)

more options

Chosen Solution

The www.first-online.com server doesn't send a required intermediate certificate (VeriSign Class 3 Extended Validation SSL SGC CA).

You can inspect the certificate chain via a site like this:

more options

Thanks for your help. With this information, we were able to get the problem resolved.