# GPThemes - ChatGPT Customization

> Transform ChatGPT's user interface with customisable accent colours and font styles, modern designs and chat bubbles.

Canonical page: [https://chrome-stats.com/d/gpthemes](https://chrome-stats.com/d/gpthemes)

## Overview

- **ID:** `gpthemes`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** itsmarta
- **Category:** appearance
- **Daily users:** 402
- **Weekly downloads:** 21
- **Rating:** 4.82 / 5 (17 ratings)
- **Version:** 6.5.0
- **Last updated:** 2026-09-04
- **First published:** 2024-01-15
- **Size:** 102 KB
- **Data as of:** 2026-09-09
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/gpthemes/)
- **Website:** [https://github.com/itsmartashub/GPThemes/issues/](https://github.com/itsmartashub/GPThemes/issues/)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/gpthemes/privacy/](https://addons.mozilla.org/firefox/addon/gpthemes/privacy/)

## Description

GPThemes transforms the ChatGPT UI by letting you tailor the look and feel. You can adjust chat and prompt widths, including full-width modes for an immersive experience. Personalize fonts—family, size, line height, and letter spacing—for comfortable reading. Pick an accent color with a live preview, and switch between modern themes—Light, Dark, and AMOLED Black—for a sleek, personalized vibe. Toggle chat bubbles to clearly differentiate your messages, and switch themes quickly with a floating button for effortless customization. The result is a clean, spacious layout with subtle animations that enhance readability and flow.

GPThemes is open source and privacy-conscious, storing your preferences locally for a consistent experience. It supports ChatGPT across multiple domains and keeps you informed about updates via GitHub. If you encounter issues, please open an issue on GitHub or contribute on the repository, and consider supporting the project via Ko‑fi.

## Rankings

- #5,664 — Overall
- #3 — gpt-4o
- #14 — customize
- #25 — gpt
- #28 — gpt4
- #43 — chatgpt

## Permissions and access

### Permissions

- `storage`
- `https://chat.openai.com/*`
- `https://chatgpt.com/*`

### Content script matches

- `chat.openai.com`
- `chatgpt.com`

## Safety

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

### Analysis details

- Request access to the following domains: openai.com, chatgpt.com
- 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).

## Similar extensions and apps

- [ChatGPT Styler Extension: Customize Themes, Fonts](https://chrome-stats.com/d/stylergpt-chatgpt-theme) — 10 users, 5.00 / 5
- [StylerGPT for ChatGPT](https://chrome-stats.com/d/stylergpt-chatgpt-theme-tools) — 114 users, 4.11 / 5
- [StylerGPT: ChatGPT Customization](https://chrome-stats.com/d/stylergpt-chatgpt-custom) — 3 users, 5.00 / 5
- [StylerGPT for ChatGPT](https://chrome-stats.com/d/chatgpt-custom-themes-tools) — 114 users, 4.11 / 5
- [styleGPT - The best customizer for ChatGPT](https://chrome-stats.com/d/stylegpt) — 5 users, 2.67 / 5
- [Akralys: ChatGPT Themes, UI Tools & PDF Export](https://chrome-stats.com/d/akralys-chatgpt-themes-tools) — 7 users, 5.00 / 5
- [StylerGPT for ChatGPT](https://chrome-stats.com/d/stylergpt-chatgpt-extension) — 114 users, 4.11 / 5
- [Beautify for ChatGPT](https://chrome-stats.com/d/beautify-for-chatgpt) — 2 users
- [StylerGPT for ChatGPT](https://chrome-stats.com/d/stylergpt-for-chatgpt) — 114 users, 4.11 / 5
- [ChatGPT Mods](https://chrome-stats.com/d/chatgpt-mods) — 1 users
- [OLED ChatGPT Theme](https://chrome-stats.com/d/oled-chatgpt-theme) — 12 users, 5.00 / 5
- [ChatGPT UX Suite](https://chrome-stats.com/d/chatgpt-ux-suite)

---

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