How Microsoft’s FocusGroup Improves Keyboard Navigation and Site Performance

Microsoft recently released a preview technology called focusgroup aimed at simplifying the development of websites with complex navigation components, allowing full keyboard operation without relying on pointing devices.

Edge product manager Patrick Brosse highlighted the global need for better accessibility tools, noting that fewer than half of websites currently implement the tabindex attribute, which controls focus order for keyboard users.

When a user presses the TAB key, tabindex highlights interactive elements (links, controls) as a focus state, enabling activation via the Enter key and sequential navigation. Developers can also customize the tab order.

The W3C Web Content Accessibility Guidelines (WCAG) require the use of such navigation elements, but Brosse argued that the high implementation barrier makes tabindex difficult for many developers.

He explained that building a fully keyboard‑accessible site with menus, sub‑menus, toolbars, tabs, and other complex components demands extensive effort and specialized knowledge, often resulting in large amounts of custom code or reliance on JavaScript libraries, which increase code size and load times.

To address these challenges, Microsoft introduced the focusgroup technology, first announced in 2022. After extensive collaboration and iteration within a broad forum, the solution has reached a stage suitable for large‑scale testing.

Brosse announced that focusgroup is now available for early testing in Microsoft Edge, and its implementation has been contributed to the open‑source Chromium project, allowing developers of other Chromium‑based browsers to benefit.

Edge platform engineer Jacques Newman has published detailed articles on the technical aspects and usage of focusgroup, actively gathering developer feedback.

Several countries have adopted WCAG principles as part of anti‑discrimination legislation, making focusgroup a practical tool for developers and improving accessibility for users with specific needs. Additionally, the technology can speed up page loading for all users and may encourage more keyboard‑first interactions.

Glossary

tabindex

: HTML attribute that defines the focus order for keyboard navigation.

WCAG (Web Content Accessibility Guidelines): International accessibility standards set by the W3C.

Chromium project: Open‑source browser engine initiated by Google, used by Edge, Opera, and others.

Focus: Visual highlight indicating the currently selected interactive element on a webpage.

Pointing device: Mouse, touchpad, stylus, or any device that interacts with the screen via position.