On attempting to get to https://addons.mozilla.org/, Firefox gives me the message:
You have asked Firefox to connect securely to addons.mozilla.org, but we can’t confirm that your connection is secure. Normally, when you try to connect securely, sites will present trusted identification to prove that you are going to the right place. However, this site’s identity can’t be verified.
What should I do?
If you usually connect to this site without problems, this error could mean that someone is trying to impersonate the site, and you shouldn’t continue.
Button that says: GET ME OUT OF HERE
addons.mozilla.org uses an invalid security certificate.
The certificate is only valid for www.google.com
(Error code: ssl_error_bad_cert_domain)
I get this message for numerous other sites too, but not all of them, like I can get to makeuseof no problems, and to me gmail account, I also get a similar message if I try to access the same site from chrome, and IE.
I believed it could be a rootkit problem, and ran a scan with malwarebytes, which although it detected 11 problems, I don’t think any of them were the issue at hand. I also download and ran the kaspersky tdsskiller program, which found zero threats. (actually the kaspersky.com website was another one I was unable to get to, so downloaded tdsskiller from another pc). Despite running malwarebytes and tdsskiller, I am still unable to get to those websites from this computer.
Thanks in advance,