FirefoxCSS-Store

Published theme

ArcWTF

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

Open original repository
Repository
github.com/KiKaraage/ArcWTF
Stars
1,735
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-Store indexes this submission for discovery. The code, license, support, and installation details belong to the original repository.