Mozilla browser SSL issue


#1

Hi,
I think your SSL Certificates are not working on Firefox anymore. I dont know why but on Chrome, MS Edge, IE working well.

Thank you for your help.


#2

Hi @sero

looks like your Firefox is broken.

Own Firefox screenshot:

de

The certificate is green and valide.


#3

What is your Firefox-Version?
I have 64.0 (64-bit) and I think latest Version has new Security-Patch.


#4

You aren’t sending the intermediate certificate from login.pcs-paycardservice.de. That’s the most likely cause for your failure.

If you were able to visit this forum without errors, then there’s nothing wrong with Let’s Encrypt and your browser.


#5

My Firefox is the same - 64 + 64 bit.

Ssllabs shows an incomplete chain:

https://www.ssllabs.com/ssltest/analyze.html?d=login.pcs-paycardservice.de&hideResults=on

Certificates provided 1 (1393 bytes)
Chain issues Incomplete

The server sends only one certificate, not the intermediate certificate.

But this is a problem of this server configuration.

And browsers often ignores that error.


#6

The -dev system seems to have gotten the cert chain done correctly.
But login & -stg, don’t have intermediate cert.

www also has problem with IPv4 access (IPv6 works well):
https://www.ssllabs.com/ssltest/analyze.html?d=www.pcs-paycardservice.de

[maybe unrelated - maybe it is] underlying system: development.pcsspml-management.mcbsoft.net
does serve the full cert chain

And: none of the systems on that IP appear to have server cipher preference ordering on.


#7

Certbot installed on my server but it served only cert.pem, which must be fullchain.pem.
Thank you all for your help


#8

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