FirefoxCSS Hub

Published theme

ArcWTF

UserChrome.css theme to bring Arc Browser look from Windows to Firefox!

Open original repository
Repository
github.com/KiKaraage/ArcWTF
Stars
1,733
Last update
Nov 14, 2025
Submitted as
legacy
ArcWTF screenshot

Tags

arc browserautohidedarkkikaraagelightminimalsideberyvertical 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.