How to stop Firefox from connecting to Yahoo analytics

How do I stop Firefox from connecting to Yahoo analytics. Bitdefender is constantly stopping Firefox, see below Online Threat Prevention: firefox.exe attempted to establish a connection relying on an expired certificate to '''sp.analytics.yahoo.com'''. We blocked the connection to keep your data safe since websites must renew their certificates with a certification authority to stay current, and outdated security certificates represent a risk. I don't want Firefox to connect to Yahoo for any reason.