Disabling TLS/1.0 and TLS/1.1 in the new Edge Browser

UPDATE: Timelines in this post were updated in March 2020, October 2020, April 2021, and October 2021 to reflect the best available information. HTTPS traffic is encrypted and protected from snooping and modification by an underlying protocol called Transport Layer Security (TLS). Disabling outdated versions of the TLS security protocol will help move the webContinue reading “Disabling TLS/1.0 and TLS/1.1 in the new Edge Browser”

Thoughts on DNS-over-HTTPS

Updated November 30, 2020 with new information about DoH in Edge, ECH, and HTTPSSVC records, and January 25, 2021 with a few remarks about Edge’s implementation. Type https://example.com in your web browser’s address bar and hit enter. What happens? Before connecting to the example.com server, your browser must convert “example.com” to the network address atContinue reading “Thoughts on DNS-over-HTTPS”

Edge79+ vs. Edge18 (Edge Legacy) vs. Chrome vs. Internet Explorer

Note: I expect to update this post over time. Last update: Sept 29, 2025. Compatibility Deltas As our new Edge Insider builds roll out to the public, we’re starting to triage reports of compatibility issues where Edge79+ (the new Chromium-based Edge, aka Anaheim) behaves differently than the old Edge (Edge18, aka Spartan, aka Edge Legacy)Continue reading “Edge79+ vs. Edge18 (Edge Legacy) vs. Chrome vs. Internet Explorer”

Edge EV UI Requires SmartScreen

A user recently noticed that when loading Paypal.com in Microsoft Edge, the UI shown was the default HTTPS UI (a gray lock): Instead of the fancier “green” UI shown for servers that present Extended Validation (EV) certificates: The user observed this on some Windows 10 machines but not others. The variable that differed between those machines wasContinue reading “Edge EV UI Requires SmartScreen”