Firefox 91 has HTTPS enabled by default in private browsing mode
The Firefox 91 browser, released on August 10, includes HTTPS by default in private browsing mode.

The Firefox 91 browser, released on August 10, includes HTTPS by default in private browsing mode.
Starting from 27 May 2021, DigiCert Code Signing certificates will require 3072-bit RSA keys or higher to issue Code Signing certificates.
The CA/B Forum, the regulator of the SSL certificates industry, has approved several changes associated with domain validation policy. The changes apply to all new certificates, as well as re-issues and renewals of old certificates. SSL/TLS certificates that have already been issued will continue to function (you do not need to change them).
From March 1, 2021, Sectigo will remove street address and postal code information from all public certificates. As noted by representatives of the certification authority, this information is not necessary for inclusion in certificates. The technical specifications do not require it. The change affects all public OV/EV SSL and OV/EV Code Signing certificates.
Mozilla Firefox 83 has a new HTTPS-only mode. When activated, the following happens: Firefox tries to establish secure connections with all the sites you visit; Firefox will ask your permission to visit sites that are accessible only via HTTP.