Microsoft says its Chromium-based Edge browser will have an IE mode, privacy tools, and Collections when it launches
Tom Warren / The Verge :
Context & Ripple Effects
This announcement completes the arc that began in December 2018, when Microsoft said it would rebuild Edge on Google's open source Chromium project and extend the browser beyond Windows 10 to Windows 7, Windows 8, and macOS. A March preview build had already shown Chrome extensions working and a mixed Chrome/Edge UI, but left the big question open: what would justify choosing Edge over Chrome itself.
IE mode, privacy tools, and Collections are Microsoft's answer — IE mode in particular targets the enterprise web apps still pinned to Internet Explorer, giving IT departments a reason to move to the new browser without breaking legacy line-of-business sites.
First-order effects
- Enterprises running IE-dependent internal apps get a supported migration path inside Chromium Edge, removing the main technical blocker to leaving Internet Explorer behind.
- Consumers on older Windows versions and macOS gain access to Edge's Collections and privacy tools at launch, since the browser ships across Windows 7, Windows 8, and macOS per the December rebuild plan.
Second-order effects
- Google's Chromium project gains Microsoft as a first-party contributor and flagship adopter, entrenching Blink as the de facto web platform that competitors must target.
- Mozilla faces a browser market where every major rival except Firefox shares one engine, pushing its differentiation case onto independence and privacy positioning.
Third-order effects
- If the pattern holds, browser competition settles into a two-engine structure — Chromium versus Gecko — with vendors competing on the layers above the engine: sync, collections, tracking prevention, and enterprise management rather than rendering tech.
- IE mode doubles as a decommissioning tool: once legacy sites run inside the new browser, Microsoft can wind down Internet Explorer support without stranding corporate customers, accelerating the end of the IE era.
The trend: Browser rivalry is migrating from engine development to the feature and compatibility layer built on top of a shared Chromium core, with Microsoft betting that enterprise compatibility plus consumer tools can win back share from Chrome.