I'm trying to access my (European Parliament) Webmail from a Linux/Firefox machine at the following address and I get security warning messages explaining that the identity of the site cannot be verified (the error message is in french).
But this only happens with Linux/Firefox from one machine.
Here's the address:
(and I'm trying to access it from my home, not from the EP).
And here's the detailed error message:
webmail.europarl.europa.eu utilise un certificat de sécurité invalide.
Le certificat n'est pas sûr car l'autorité délivrant le certificat est inconnue.
(Code d'erreur : sec_error_unknown_issuer)
French to English translation
webmail.europarl.europa.eu uses an invalid security certificate.
The certificate is not trusted because the authority issuing the certificate is unknown.
(Error code: SEC_ERROR_UNKNOWN_ISSUER)
So basically, if I translate, it is telling that the webmail.europarl.europa.eu certificate is invalid because the authority that delivered the certificate is unknown. I do only get this invalid certificate thing on Linux/Firefox.
From a MacBookPro running Safari, I go to what looks like the correct webmail login page.
From the same Linux machine, but using another user account and Chrome instead of Firefox, I go to what looks like the correct webmail login page.
So there are several possibilities, here are a few ones:
- Firefox is right and my Linux box has been hacked
- Firefox is right and detecting something that neither Chrome nor Safari is detecting (like, say, my router that may be hacked)
- Safari on the MacBook Pro and Chrome on Linux are both correct and it is just Firefox on Linux that is wrongly stressing me when everything is normal.
How do I know which one of these possibilities (or any other) is correct?
How can I troubleshoot what is going on with either Linux/Firefox or with the parliament's webmail?