Downloads

Pre-built Binaries

Umbra is in active development. The first public release will be announced here. In the meantime, you can build from source or use LibreWolf which Umbra is based on.

Build from Source

You can build Umbra from source using the source repository.

Prerequisites: Rust, clang, Python 3, and a bootstrapped Firefox build environment.

Quick start:

git clone https://github.com/Wyind/umbra-browser.git
cd umbra-browser/source
make fetch
make dir
make bootstrap
make build
make package

Alternative: LibreWolf

Umbra is a fork of LibreWolf. If you want a stable, production-ready browser today, we recommend using LibreWolf directly. You can download it from their official downloads page.