FirefoxCSS Hub

Published theme

Fennec

Minimal, customizable Firefox/LibreWolf setup with Zen-style sidebar workflow — no fork, no build.

Open original repository
Repository
github.com/tompassarelli/fennec
Stars
59
Last update
Apr 25, 2026
Submitted as
legacy
Fennec screenshot

Tags

darkkeyboardlibrewolflightlightweightminimalsidebarsideberytompassarellivertical tabs

Install overview

  1. Open the original repository and read the maintainer's installation notes.
  2. Enable toolkit.legacyUserProfileCustomizations.stylesheets in about:config.
  3. Create or open the chrome folder in your Firefox profile.
  4. Copy the theme files requested by the original repository and restart Firefox.

Ownership note

FirefoxCSS Hub indexes this submission for discovery. The code, license, support, and installation details belong to the original repository.