Umbra is an ESR fork that doesn't spy on you

Name: Umbra is an ESR fork that doesn't spy on you
Availability: InStock
Author: jerrimu

by jerrimu·Mar 1, 2026·1 point·0 comments

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AI Analysis

●MidDark Horse

Yet another Firefox fork when Librewolf and Arkenfox already exist.

Strengths

•Includes Umbra Control Center for per-site privacy profiles, differentiated from generic Firefox forks
•Prioritizes Netflix compatibility and usable fingerprinting defaults over aggressive resistance

Weaknesses

•No compelling differentiation from Librewolf's mature, established distribution
•Sparse documentation and unclear maintenance commitment beyond initial 1.0 release

Post Description

Umbra is built using a fork of fern.js, the ghostery browser build script. All telemetry and callouts are removed, AI is removed, Pocket is removed. Available as RPM, DEB, Flatpak. tar.xz, and exe.

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