Firefox Secure Connection Failed

tarmiricmi

Estimable
Aug 3, 2015
39
0
4,590
Hello,
I installed Firefox and getting error:

Secure Connection Failed

An error occurred during a connection to www.youtube.com. Peer’s certificate has an invalid signature. Error code: SEC_ERROR_BAD_SIGNATURE

The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
Please contact the website owners to inform them of this problem.

This is happening only on https sites. Other browsers working fine. What a hell?