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Trying to import self signed certificate from firewall to browser (version 69,ubuntu),but I get error "This is not a certificate authority certificate,so it can

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Trying to import self signed certificate from firewall to browser (version 69,ubuntu),but I get error "This is not a certificate authority certificate,so it can't be imported into the certificate authority list"

Please help in importing the certificate.

Trying to import self signed certificate from firewall to browser (version 69,ubuntu),but I get error "This is not a certificate authority certificate,so it can't be imported into the certificate authority list" Please help in importing the certificate.

Réiteach roghnaithe

When I run a search on that error, several answers reference a required field in the certificate:

Creating certificates is beyond the scope of this forum.

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Réiteach Roghnaithe

When I run a search on that error, several answers reference a required field in the certificate:

Creating certificates is beyond the scope of this forum.

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There was one parameter missing when I created certificate which tells that the certificate should be used as CA certificate.