webRequest.CertificateInfo

An object describing a single X.509 certificate.

The SecurityInfo object returned from the webRequest.getSecurityInfo() API includes a certificates property which is an array of these objects.

Type

Values of this type are objects. They contain the following properties:

fingerprint

Object. An object with the following properties:

sha1

String. SHA-1 hash of the certificate's DER encoding.

sha256

String. SHA-256 hash of the certificate's DER encoding.

isBuiltInRoot

Boolean. true if the certificate is one of the trust roots installed in the browser, false otherwise.

issuer

String. Name of the organization that issued this certificate, represented as a Distinguished Name and formatted as a comma-separated list of Relative Distinguished Names, each of the form "type=value".

For example: "CN=DigiCert SHA2 Secure Server CA,O=DigiCert Inc,C=US".

rawDER

Array of Number. If webRequest.getSecurityInfo() was called with the rawDER option present and set to true, this will contain the DER encoding of the certificate.

serialNumber

String. The certificate's serial number.

subject

String. Name of the organization that issued this certificate, represented as a Distinguished Name and formatted as a comma-separated list of Relative Distinguished Names, each of the form "type=value".

For example: "CN=*.cdn.mozilla.net,O=Mozilla Corporation,L=Mountain View,ST=California,C=US".

subjectPublicKeyInfoDigest

Object. An object containing the following properties:

sha256

String. Base64 encoded SHA-256 hash of the DER-encoded public key info.

validity

Object. Validity period for the certificate. An object containing the following properties:

start

Number. The start of the certificate's validity period, in milliseconds since the epoch.

end

Number. The end of the certificate's validity period, in milliseconds since the epoch.

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
CertificateInfo	No	No	62	?	No	No	?	?	62	?	?	?