Mozilla is trying to push Firefox users to always use HTTPS. Additionally, the web contains millions of legacy HTTP links that point to insecure versions of websites. While the majority of websites already support HTTPS, many often fall back to using the insecure and outdated HTTP protocol. Additionally, users can be more confident they are communicating with the correct website.
Data like passwords, credit card numbers, and other sensitive information is kept secure from third parties. Secure connections are a necessary measure to decrease content injection (which can result in eavesdropping, man-in-the-middle attacks, and other data modification). HTTPS is a more secure version of the HTTP internet protocol used to connect users to websites. To enable HTTPS-Only Mode, click on Firefox’s menu button, hit Preferences, then Privacy & Security, scroll down to HTTPS-Only Mode, and choose “Enable HTTPS-Only Mode in all windows.” If it can’t, Firefox asks for your permission before connecting to a website that doesn’t support secure connections. Firefox 83’s highlight feature is HTTPS-Only Mode, in which the browser attempts to establish fully secure connections to every website (just like the EFF’s HTTPS Everywhere).
