M365 Archive

RM500162 - Microsoft Edge: v.140 - HTTPS First Mode

Microsoft 365 Roadmap

Roadmap ID

500162

View in M365 Roadmap

Status

Launched

Release

General Availability

Last Updated

Sep 8, 2025

Published Aug 11, 2025

Platforms

Web

Service

Microsoft Edge

Tag

Launched
General Availability
Worldwide (Standard Multi-Tenant)

Cloud

Worldwide (Standard Multi-Tenant)

Summary

HTTPS-First Mode in Microsoft Edge automatically upgrades HTTP connections to HTTPS when possible. If a site doesn’t support HTTPS, Microsoft Edge shows a warning to highlight the security risk. This appears only for public sites—not private ones or manually entered HTTP URLs. Users can enable the warning in edge://settings and admins can control availability to this feature using the HttpsOnlyMode policy.

Description

HTTPS-First Mode in Microsoft Edge automatically upgrades HTTP connections to HTTPS when possible. If a site doesn’t support HTTPS, Microsoft Edge shows a warning to highlight the security risk. This appears only for public sites—not private ones or manually entered HTTP URLs. Users can enable the warning in edge://settings and admins can control availability to this feature using the HttpsOnlyMode policy.

GA date: September CY2025