at it > From: owner-openssl-us...@openssl.org On Behalf Of A A
> Sent: Monday, 17 June, 2013 20:58

<re: Firefox, which I abbreviate FF not FX>

> Unfortunately fx doesn't let me to export CA certificate. I can only
> view server side certificate and export it. Also, marking the

It works for me (in 20.1, I'm a little behind, but I doubt this changed).
To be clear: AddException, View, Details, select top cert in Hierarchy
which should be the root/CA cert but look to be sure, Export.
 
> exception as permanent doesn't make fx remember this setting and I
> need to accept the certificate warning every time I go to a new SSL

But not the same site right? An exception is for a particular server 
cert *under* a CA. Look at Tools Options Encryption ViewCertificates 
under Servers (yes, Servers is not the most obvious place for this).

Whereas if you trust a CA cert, then all certs it issues are accepted 
(until expired, or maybe revoked, I forget if FF is doing revocation).

> site. I tried to import the certificate that fx shows after clicking
> padlock icon in address bar and import it into a list of trusted CAs
> but fx says that it's not a CA certificate. In fx I can only see that
> this CA certificate is signed by the company itself, it contains its
> name and address but I can't export it explicitly. And when I do

Padlock MoreInfo takes you to Tools PageInfo Security, which initially 
shows you the server cert. I fthe server cert is issued by a CA, the 
server cert is indeed not a CA cert. Like the above, goto Details, 
select the top cert in Hierarchy, and Export that.

> "openssl s_client -showcerts -connect HOSTNAME:443" it says "No client
> certificate CA names sent". It seems to be harder than I thought. I
> think that importing this CA certificate into a list of trusted CAs in
> fx would make all warnings be gone.
> 
"client certificate CA names" are for *client* authentication, which is 
rarely used, and apparently not here. What you want is the top/last cert 
in the *server* chain, which displays as a series of PEM blocks (base64 
delimited by -----BEGIN and -----END lines) with 2-line labels before each 
giving the subject and issuer which should help figure out which is which.

<snip prior>

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