Firefox 83 introduces HTTPS-Only Mode

By Christoph Kerschbaumer, Julian Gaibler, Arthur Edelstein and Thyla van der Merwe  |  November 17, 2020  |  Mozilla

Security on the web matters. Whenever you connect to a web page and enter a password, a credit card number, or other sensitive information, you want to be sure that this information is kept secure. Whether you are writing a personal email or reading a page on a medical condition, you don’t want that information leaked to eavesdroppers on the network who have no business prying into your personal communications.

That’s why Mozilla is pleased to introduce HTTPS-Only Mode, a brand-new security feature available in Firefox 83. When you enable HTTPS-Only Mode:

  • Firefox attempts to establish fully secure connections to every website, and
  • Firefox asks for your permission before connecting to a website that doesn’t support secure connections.