# Onyx Notes - Markdown Editor

> A note-taking application with Markdown support, live preview, code highlighting, Mermaid diagrams, LaTeX support, and mindmapping to enhancing your productivity

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

## Overview

- **ID:** `onyx-notes`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Spirit of Star
- **Category:** web-development,social-communication,tabs
- **Daily users:** 3
- **Version:** 2.6
- **Last updated:** 2026-06-18
- **First published:** 2024-08-06
- **Size:** 2.80 MB
- **Data as of:** 2026-09-15
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/onyx-notes/)

## Description

Onyx is Extension that allows user to write markdown notes and export them, Onyx gives user capability to express their innermost thoughts into their personal second brain. Onyx aims to bring productive way to write notes.

## Rankings

- #54,743 — Overall
- #159 — editor
- #188 — linotes
- #236 — text editor
- #247 — css editor

## Permissions and access

### Permissions

- `activeTab`
- `tabs`
- `storage`
- `contextMenus`
- `clipboardWrite`

### Host permissions

- `<all_urls>`

## Safety

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

### Analysis details

- Grants access to browser tabs, which can be used to track user browsing habits and history, presenting a privacy concern.
- 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/onyx-notes)