# Grok Cosmic Theme

> Customize Grok with local wallpapers, text and logo colors, OLED/glass effects, transparency controls, and portable theme profiles.

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

## Overview

- **ID:** `grok-cosmic-theme`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** RatioWorks
- **Category:** appearance
- **Daily users:** 1
- **Weekly downloads:** 1
- **Version:** 2.3.0
- **Last updated:** 2026-09-17
- **First published:** 2026-08-16
- **Size:** 125 KB
- **Data as of:** 2026-09-19
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/grok-cosmic-theme/)

## Description

Grok Cosmic Theme is an unofficial Firefox customization extension by RatioWorks for personalizing the Grok interface.
Choose from built-in or uploaded wallpapers, customize primary and secondary text colors, change the Grok hero logo tone and transparency, adjust accent colors, and enable OLED, glass, glow, blur, and other visual effects.
Custom wallpapers are processed locally. Settings and exported theme profiles remain on the user's device unless the user manually moves an exported profile file. The extension contains no RatioWorks analytics, telemetry, advertising, or tracking.
Includes quick presets, full reset controls, and profile export/import for transferring a setup to another Firefox installation.
Grok Cosmic Theme is unofficial and is not affiliated with or endorsed by xAI.

## Rankings

- #106,418 — Overall
- #39 — grok

## Permissions and access

### Permissions

- `storage`

### Content script matches

- `grok.com`
- `*.grok.com`
- `x.com`

## Safety

- **Risk impact:** Moderate risk impact
- **Risk likelihood:** High risk likelihood

### Analysis details

- Injects scripts into web pages, which may alter or extract site contents, resulting in a substantial risk.
- This extension was recently updated in the past month. New updates 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/grok-cosmic-theme)