Sebastien Burel/Dreamstime.com. By considerable measure, the largest known animal on Earth is the blue whale. Mature blue whales can measure anywhere from 75 feet (23 m) to 100 feet (30.5 m) from head to tail, and can weigh as much as 150 tons (136 metric tons).
Click Network and Sharing Center. In the Connections section, click Wi-Fi. Click Wireless Properties. Click the Security tab. If the Security type is something such as WPA2, your network is secured. If the Security type is No authentication (Open), your network is not secured.
What does Your connection is not secure mean? When Firefox connects to a secure website (the URL begins with https://), it must verify that the certificate presented by the website is valid and that the encryption is strong enough to adequately protect your privacy.