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On Firefox 20.0.1 missing one of Verisign's Subordinate certificates. The missing one is : VeriSign Class 3 Extended Validation SSL SGC CA.PLEASE HELP !!!

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On Firefox 20.0.1 missing one of Verisign's Subordinate certificates. The missing one is : VeriSign Class 3 Extended Validation SSL SGC CA.PLEASE HELP !!!

On Firefox 20.0.1 missing one of Verisign's Subordinate certificates. The missing one is : VeriSign Class 3 Extended Validation SSL SGC CA.PLEASE HELP !!!

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hello IgoRock, you can try this in order to restore the default set of certificates used in firefox: go to firefox > help > troubleshooting information, click on profile folder/show folder and close all firefox windows afterwards. a windows explorer window should open up - in there rename the file named cert8.db into something like oldcert8.db - it will be regenerated again the next time you launch the browser.

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That is an intermediate certificate and needs to be send by the web server.

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

That is probably the second certificate on this page:

RSA Secondary EV SSL Intermediate CA Certificate: