# Arcueid Happy Theme

> Arcueid Firefox theme. A big thanks to the artist shirotsumekusa, according to the info on danbooru. He or she definitely has a big heart, besides the obviously awesome skills. All credits go to Crazy Clover Club (CCC), who are also awesome. For anyone wondering what was all that about, you may check out the doujin at danbooru.donmai.us/pools/620. I do not own this awesome picture, just adjusted it to create a firefox theme. For best appearance, switch your firefox appearance to classic one, with 2 or 3 toolbars one under another, and force the tabstrip to be under the toolbars.

Canonical page: [https://chrome-stats.com/d/arcueid-happy-theme](https://chrome-stats.com/d/arcueid-happy-theme)

## Overview

- **ID:** `arcueid-happy-theme`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** theh.x
- **Category:** other
- **Daily users:** 1
- **Version:** 2.0
- **Last updated:** 2019-05-13
- **First published:** 2013-03-02
- **Size:** 76 KB
- **Data as of:** 2026-09-14
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/arcueid-happy-theme/)

## Description

Arcueid Happy Theme is a Firefox add-on that allows you to customize your browser with a beautiful theme featuring art by shirotsumekusa. It is designed to be used with the classic Firefox appearance and provides a visually pleasing experience with 2 or 3 toolbars and the tabstrip placed under the toolbars.

## Rankings

- #95,685 — Overall
- #131 — happy

## Safety

- **Risk impact:** Very low risk impact
- **Risk likelihood:** Moderate risk likelihood

### Analysis details

- This permission has no access or impact on the user's system or data, thus carrying no risk.
- This extension has low user count. Unpopular extensions may not be stable or safe.

> Some risk analysis details are omitted from this free response. [Upgrade to view the full analysis](https://chrome-stats.com/pricing).

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Source: [Chrome-Stats](https://chrome-stats.com/d/arcueid-happy-theme)