After updating to avast 2015 all of my internet browsers are getting an error message about the certificate not being trusted for common websites including
https://www.google.com ,
https://www.facebook.com ,
https://www.avast.com ,
https://www.mozilla.org , through help at the mozilla.org website i have learned the problem is being caused by my avast pro antivirus and online security programs, i continue to get the error message, please reply , thank you
"This Connection is Untrusted
You have asked Firefox to connect securely to my.avast.com, 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.
my.avast.com uses an invalid security certificate. The certificate is not trusted because the issuer certificate is unknown. (Error code: sec_error_unknown_issuer)"