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HTTP Strict Transport Security lets a web site inform the browser that it should never load the site using HTTP and should automatically convert all attempts to use HTTPS requests instead. Mozilla (stylized as moz://a) is a free software community founded in 1998 by members of Netscape. It consists in one HTTP header, HTTPS-Strict-Transport-Security-Security, sent by the server with the resource resource. In other words, changing the protocol from HTTP to HTTPS in a URL works (and is more secure)