KiKaraage/ArcWTF
A userChrome.css theme to bring Arc Browser look on Windows to Firefox. Work with Windows, Linux and macOS ✨ observed · 2026-08-28
Health v2 · maintenance only
40/100
- Activity 52
- Release rhythm 8
- Longevity 67
How is this computed?
round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10) — computed 2026-09-02. Adoption (stars, forks) is never an input.
- gap_med: n/a
- age_days: 948
- days_rel: n/a
- days_push: 292
- n_releases_24m: 0
Adoption not part of the score
1725 stars · 26 forks observed · 2026-08-28
What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded
ArcWTF is a userChrome.css theme that recreates the Arc Browser look and feel inside Firefox, using Firefox's native vertical tabs and sidebar. It works across Windows, Linux, and macOS and requires no mandatory extensions.
Use cases
- make Firefox look like Arc Browser
- get vertical tabs styling in Firefox
- customize Firefox UI with userChrome.css
- add Arc-style folder colors and tab groups to Firefox
- set up a split view sidebar in Firefox
- theme Firefox consistently across Windows, Linux and macOS
When to choose
- you want Arc Browser's aesthetic without leaving Firefox
- you prefer native Firefox vertical tabs over Sidebery-based setups
- you want a cross-platform Firefox theme with active maintenance
When to avoid
- you need Arc's Spaces or tree-style tab grouping
- you want the URL bar on the left side
- you use an older Firefox version below 137
Facets
plugin · maturity active
theme ui-components css-framework browser-extensions web-development developer-tools browser cross-platform windows firefox userchrome arc-browser css-theme vertical-tabs browser-customization linux macos
1 source
- readme: https://github.com/KiKaraage/ArcWTF · fetched 2026-08-28 · 1a3422cd5a39
Member repositories
| Repository | Role | Health v2 |
|---|---|---|
| KiKaraage/ArcWTF | main | 40 |
For agents
markdown · JSON · MCP: product_card(name="KiKaraage/ArcWTF")
Data as of 2026-08-30T08:39:29.467469+00:00 · Report a problem