# Sidebar Notebook

> A developer-focused, local-first notebook in the Firefox sidebar with markdown editing, notebook cells, command palette, vim mode, and dark theme.

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

## Overview

- **ID:** `sidebar-notebook`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** MrSuperfluous
- **Category:** web-development
- **Daily users:** 6
- **Weekly downloads:** 3
- **Version:** 2.0.0
- **Last updated:** 2026-05-14
- **First published:** 2026-05-11
- **Size:** 36 KB
- **Data as of:** 2026-09-12
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/sidebar-notebook/)

## Description

A lightweight, local-first notebook that lives directly in the Firefox sidebar. Built for developers who
  want to jot down notes, code snippets, and ideas without leaving the browser.

• VS Code-style file tree with nested pages
  • Markdown editor with live preview and syntax-highlighted code blocks
  • Jupyter-style notebook cells mode (Shift+Enter to add cells)
  • Command palette (Ctrl+P to search pages, Ctrl+K for commands)
  • Vim keybindings (toggleable)
  • One-click copy on code blocks
  • Fuzzy search across all page titles and content
  • Scratchpad mode for quick temporary notes
  • Collapsible sidebar to maximize writing space
  • Dark theme by default, light mode follows system preference
  • Real-time autosave — never lose a keystroke
  • Export/import all pages as JSON 
  • Completely offline — all data stored locally in IndexedDB
  • No accounts, no cloud, no tracking

KEYBOARD SHORTCUTS

Ctrl+P — Search/switch pages
  Ctrl+K — Command palette
  Ctrl+N — New page
  Ctrl+S — Force save
  Ctrl+B — Toggle file tree
  Ctrl+E — Cycle view mode (edit → split → preview → cells)
  Shift+Enter — New cell (in cells mode) 

PRIVACY

All data stays on your machine. Zero network requests. Zero telemetry. Zero data collection.

## Rankings

- #42,441 — Overall
- #21 — notebook
- #143 — deepseek sidebar
- #155 — sidebar

## Permissions and access

### Permissions

- `storage`
- `clipboardWrite`

## Safety

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

### Analysis details

- Allows reading and modifying clipboard content, which can be sensitive, posing a moderate privacy 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/sidebar-notebook)