When I try to connect to my e-banking site. I get the following error message:
"internet banking.argenta.be:443 uses an invalid security certificate. The certificate is not trusted because the issuer certificate is unknown. (Error code: sec_error_unknown_issuer)"
Now I have connected to this website many times before, so the sudden change in behavior worries me. I only upgraded the NoScript add-on in my Firefox 3.0.5 since, and I tried already disabling that. I have also waited a few days in case the problem is at the websites server, but the problem remains.
With Internet Explorer I can connect to this site without any problem.How can I be sure that my Firefox is not hijacked or infected with malware? I did a scan with my Nod32 antivirus, and Spybot and Superantispyware, they all report tha my computer is clean. The website provides a link to install the GlobalSign certificate they use, but how can I be sure this is legit? A rogue site might provide such a link too?
This is the website of my bank, so I don't want to risk to expose my password connecting to it.I tried to export the GlobalSign certificate from my Internet Explorer, and import it to Firefox, but I get the message that it is already installed. Is it another certificate that I need to transfer?
I am using Vista SP1, Firefox 3.0.5, Internet Explorer 7. Any help or advise is highly appreciated.