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Thanks a lot breadtan, I'll be able to try your suggestions on Monday. &nbsp;Have a good weekend.
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Thanks a lot breadtan, I'll be able to try your suggestions on Monday.  Have a good weekend.

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Many thanks and sorry for the late reply!
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Many thanks and sorry for the late reply!

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Hi Experts,<br />
<br />
I'm just trying to use the certutil utility to add a CA cert to my FireFox trusted root store with this command and I'm getting the error message in the subject of this question.<br />
<br />
certutil -A -n TrustMe.cer -t &quot;TCu&quot;<br />
<br />
The file TrustMe.cer is a valid CA cert, but even if I put an invalid filename in the command line like so, I get the same problem.<br />
certutil -A -n BogusFileThatDoesNotExist.<wbr />cer -t &quot;TCu&quot;<br />
<br />
What's the correct way to do this?<br />
Thank you!<br />
Mike
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Hi Experts,

I'm just trying to use the certutil utility to add a CA cert to my FireFox trusted root store with this command and I'm getting the error message in the subject of this question.

certutil -A -n TrustMe.cer -t "TCu"

The file TrustMe.cer is a valid CA cert, but even if I put an invalid filename in the command line like so, I get the same problem.
certutil -A -n BogusFileThatDoesNotExist.cer -t "TCu"

What's the correct way to do this?
Thank you!
Mike

NSS certutil &quot;certificate/key database is in an old, unsupported format&quot;

Web browsers are applications used primarily to display documents, files and media from the Internet, identified by a Uniform Resource Identifier (URI) that can be a page, image, video or other file. Some browsers require the use of add-ons or extensions to safely render the information they receive; others have systems built into them to perform the same functions.

Web Browsers

HTTPS is a protocol for secure communication over a computer network which is widely used on the Internet. HTTPS consists of communication over Hypertext Transfer Protocol (HTTP) within a connection encrypted by Transport Layer Security (TLS) or its predecessor, Secure Sockets Layer (SSL). The main motivation for HTTPS is authentication of the visited website and to protect the privacy and integrity of the exchanged data. HTTPS is widely used for protecting page authenticity on all types of websites, securing accounts and keeping user communications, identity and web browsing private.

SSL / HTTPS

Encryption is the process of encoding messages or information in such a way that only authorized parties can read it. In an encryption scheme, the intended communication information or message, referred to as plaintext, is encrypted using an encryption algorithm, generating ciphertext that can only be read if decrypted. For technical reasons, an encryption scheme usually uses a pseudo-random encryption key generated by an algorithm. An authorized recipient can easily decrypt the message with the key provided by the originator to recipients, but not to unauthorized interceptors.

NSS certutil &quot;certificate/key database is in an old, unsupported format&quot;

NSS certutil "certificate/key database is in an old, unsupported format"