Custom Chromium Builds

XFII Browser

A Chromium build with a custom new-tab page, disabled extensions and branding, and React pages inside the browser.

Chromium
React
New tab page
Branding

What was built

XFII is a Chromium build with a rebuilt new-tab experience in place of the stock Chromium page. Extensions are switched off, which keeps the browser’s feature set to what is built into it rather than what a user might add afterward. Parts of the interface are React pages rendered inside the browser instead of Chromium’s native UI toolkit, and the build carries its own branding throughout.

The engineering challenge

Disabling extensions and replacing the new-tab page both change how Chromium’s UI layer decides what a user sees first and what they can add to the browser afterward. Rendering parts of that interface as React pages inside the browser, instead of native Chromium UI, means those screens can be built and updated with ordinary web tooling rather than rebuilding the browser binary for every interface change.

Engineering scope and what shipped

A custom new-tab page
Extensions disabled
Custom branding
React pages displayed inside the browser

Engineering approach: how it fits together

How the XFII Browser is put together

XFII Browser
The browser’s own branding, carried across the interface.
Custom new-tab page
A new-tab page built for XFII in place of the Chromium default.
React pages in-browser
- React
- Extensions disabled
Parts of the browser interface are React pages rendered inside the browser, with extensions switched off.
Chromium
- Chromium
The underlying Chromium engine the build runs on.
Build and release
Packaging and release of the branded build.

Your product
Our engineering
Upstream, kept as close to unmodified as possible
Platforms and release

XFII replaces Chromium’s default new-tab page and branding, with parts of the interface built as React pages and extensions switched off.

Related services

Chromium Browser DevelopmentCustom Chromium builds, forks and engine-level changes.

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