arkenfox/user.js resource

Health v2 · maintenance only

Adoption not part of the score

12811 stars · 552 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-29, confidence not recorded

A comprehensive, curated user.js template that overrides hundreds of Firefox preferences to maximize privacy and security while reducing tracking and fingerprinting. It targets desktop Firefox specifically and is backed by an extensive wiki, regular releases, and an interactive webpage for reviewing and overriding settings.

Use cases

• harden firefox for privacy and security
• stop websites from tracking me in firefox
• prevent browser fingerprinting
• disable firefox telemetry and data collection
• get a maintained firefox prefs template to drop into my profile
• make firefox more private without breaking sites too much
• baseline privacy settings for a fresh firefox install

When to choose

• You run desktop Firefox on Linux, macOS, or Windows and want a curated, regularly updated privacy and security baseline
• You are willing to read the wiki and override individual prefs to fit your workflow
• You want stronger anti-fingerprinting and anti-tracking protections than Firefox ships with by default

When to avoid

• You use Tor Browser - the project explicitly recommends against applying it there
• You use a Gecko fork or other Gecko-based browser, where applying it as-is can be counterproductive
• You need Firefox on mobile or a set-and-forget setup with zero site breakage
• You want a GUI extension rather than a preference file you manage yourself

Facets

infra-config · maturity stable

privacy security privacy security desktop-applications windows browser firefox mozilla user-js anti-fingerprinting anti-tracking browser-hardening configuration-template prefs telemetry linux macos

Member repositories

For agents

markdown · JSON · MCP: product_card(name="arkenfox/user.js")