# Notte — Accessibility & Dark Mode

> An accessibility toolkit for low vision. Dark mode with guaranteed contrast, plus bigger text, wider spacing, a clearer font, warm tint and reduced motion. Any site. Free, open source, no tracking.

Canonical page: [https://chrome-stats.com/d/notte-accessibility-dark-mode](https://chrome-stats.com/d/notte-accessibility-dark-mode)

## Overview

- **ID:** `notte-accessibility-dark-mode`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** Sebastian
- **Category:** privacy-security,appearance
- **Daily users:** 2
- **Weekly downloads:** 1
- **Rating:** 4.00 / 5 (2 ratings)
- **Version:** 2.0.1
- **Last updated:** 2026-09-09
- **First published:** 2026-07-12
- **Size:** 572 KB
- **Data as of:** 2026-09-12
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/notte-accessibility-dark-mode/)
- **Website:** [https://github.com/Isobastian/Notte-Accessibility/issues](https://github.com/Isobastian/Notte-Accessibility/issues)

## Description

Notte turns bright, glaring websites dark — and gives you the controls to make
any page readable.

Born from necessity: the developer lives with a degenerative eye condition, and
white screens can be genuinely painful for people with low vision, light
sensitivity or eye strain. Notte was built first and foremost as an
accessibility tool, and it will always be completely free: no ads, no
subscriptions, no donations asked.

HOW IT WORKS

Notte doesn't invert colours. It reads the page's stylesheets and remaps every
background to a deep, consistent dark tone and every text to a bright, readable
one, always keeping a high contrast ratio (WCAG-friendly). Colours keep their
identity — buttons, links and highlights stay recognisable — while photos and
videos remain untouched, in their natural colours.

THE TOOLKIT

Dark mode is the entry point, not the whole tool. Every setting below works per
site, on darkened pages and on ordinary bright ones:
<ul><li>Guaranteed contrast — a target you set, not a slider you have to tune</li><li>Text size, letter and word spacing, line spacing</li><li>Clearer, dyslexia-friendly font</li><li>Warm tint to cut blue light</li><li>Brightness, saturation and image dimming</li><li>Underline every link, strong keyboard focus outlines</li><li>Reduce motion, for vestibular disorders and migraine</li></ul>
Notte leaves sites that already ship a proper dark mode alone, and every control
in the popup is large and high-contrast — an accessibility tool you need good
eyesight to operate is a contradiction.

PRIVACY

Notte collects nothing. No data, no analytics, no tracking, no account. Your
browsing never leaves your device. Notte asks for site access for one reason
only: some stylesheets are blocked by the browser's cross-origin rules, so a
background script re-fetches them in order to darken them. That script stores
nothing and sends nothing anywhere.

Notte runs on Firefox for desktop and Firefox for Android, and is also available
for Chrome and for Safari on Mac, iPhone and iPad, from a single open source
codebase.

Open source under [LICENCE]. If a website doesn't look right, feedback is always
welcome — it helps make the web more readable for everyone.

## Rankings

- #60,334 — Overall
- #74 — visibility
- #116 — free access

## Permissions and access

### Permissions

- `storage`
- `activeTab`

### Host permissions

- `<all_urls>`

### Content script matches

- `<all_urls>`

## Safety

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

### Analysis details

- Allows access to all websites, posing a significant security risk as it can monitor and modify data from any visited site.
- 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

- [Nightify - Beautiful Dark Mode](https://chrome-stats.com/d/nightify-beautiful-dark) — 12 users, 3.00 / 5
- [Ultra Dark Mode](https://chrome-stats.com/d/dark-mode-dark-theme) — 65 users, 5.00 / 5
- [Ultra Dark Mode](https://chrome-stats.com/d/ultra-dark-mode) — 65 users, 5.00 / 5
- [Nightify - Beautiful Dark Mode](https://chrome-stats.com/d/nightify) — 12 users, 3.00 / 5
- [Dark Mode](https://chrome-stats.com/d/dark-mode-guard) — 69 users, 5.00 / 5
- [Dark Mode - Night Eye](https://chrome-stats.com/d/night-eye-dark-mode) — 5,859 users, 3.57 / 5
- [NightShift - ExtensionBuffet](https://chrome-stats.com/d/nightshift-extensionbuffet) — 3 users
- [Dark Reader Night Eye](https://chrome-stats.com/d/soothing-dark-mode) — 1,130 users, 4.69 / 5
- [Plainsight: Dyslexia Font & Reading Ruler](https://chrome-stats.com/d/plainsight-dyslexia-font-ruler) — 5 users, 5.00 / 5
- [Dark mode / night reader](https://chrome-stats.com/d/dark-mode-night-reader) — 36 users, 4.36 / 5
- [Dark Mode Everywhere](https://chrome-stats.com/d/dark-mode-everywhere) — 539 users, 4.57 / 5
- [Everything Dark](https://chrome-stats.com/d/everything-dark) — 1 users

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Source: [Chrome-Stats](https://chrome-stats.com/d/notte-accessibility-dark-mode)