Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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.

Firefox 7.0.1 is not recognizing valid security certificate for several netbanking sites like www.iobnet.co.in, www.idbibank.com etc. showing sec_error_unknown_issuer error, but these sites are opening normally in Firefox 3.6.23, I'm worried

  • 1 reply
  • 10 have this problem
  • 8 views
  • Last reply by cor-el

PKYMAP
PKYMAP
more options

The sites http://www.idbibank.com, http://www.iobnet.co.in are authentic and trusted NetBanking sites in India. Also these sites are opening normally with green 'site info button' and without any error message in Firefox 3.6.23.

However in my other computer recently installed with Firefox Portable 7.0.1 (software from http://portableapps.com) the above sites are not opening directly and I get the message "This Connection is Untrusted" with Technical details as "sec_error_unknown_issuer" error .

So I then installed an old installer for Firefox 4.0 but still getting the same problem.

Please help!

The sites http://www.idbibank.com, http://www.iobnet.co.in are authentic and trusted NetBanking sites in India. Also these sites are opening normally with green 'site info button' and without any error message in Firefox 3.6.23. However in my other computer recently installed with Firefox Portable 7.0.1 (software from http://portableapps.com) the above sites are not opening directly and I get the message "This Connection is Untrusted" with Technical details as "sec_error_unknown_issuer" error . So I then installed an old installer for Firefox 4.0 but still getting the same problem. Please help!

All Replies (1)

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

That site doesn't send a required intermediate certificate to link to a build-in root certificate.

  • VeriSign Class 3 Extended Validation SSL SGC CA

You can find that missing certificate on this website as "Secondary EV SSL Intermediate CA Certificate" (second cert.) and save it in a text file VeriSignC3-EV.cer and import that file in the Firefox Certificate Manager.