# whyEXT Dark Mode

> Per-site dark mode toggle: enable or disable a simple dark style for the current website domain, with settings saved locally in your browser.

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

## Overview

- **ID:** `whyext-dark-mode`
- **Platform:** Firefox
- **Type:** Firefox add-on
- **Status:** Available
- **Publisher:** byrdltd
- **Category:** privacy-security,appearance,tabs
- **Version:** 0.1.0
- **Last updated:** 2026-04-25
- **First published:** 2026-04-22
- **Size:** 18 KB
- **Data as of:** 2026-09-11
- **Store listing:** [Firefox Add-ons Store](https://addons.mozilla.org/firefox/addon/whyext-dark-mode/)
- **Website:** [https://github.com/byrdltd/whyEXT](https://github.com/byrdltd/whyEXT)
- **Privacy policy:** [https://addons.mozilla.org/firefox/addon/whyext-dark-mode/privacy/](https://addons.mozilla.org/firefox/addon/whyext-dark-mode/privacy/)

## Description

whyEXT Dark Mode adds a lightweight per-domain “dark style” toggle for websites you choose. It works <strong>per domain</strong> (not per-tab): you decide which sites are affected, and everything stays <strong>local</strong> on your device.

What it does
<ul><li>Toggle a simple dark style for the <strong>current website’s domain</strong> from the extension popup.</li><li>Remember your choice <strong>locally</strong> (no accounts, no cloud sync).</li><li>Open the <strong>Options</strong> page to review, remove, or clear enabled domains.</li></ul>
How it works
<ul><li>Applies a page-level visual style intended to make many sites easier to read at night.</li><li>Results can vary by site: layout, embedded media, and a site’s own dark theme can affect appearance.</li></ul>
Privacy
<ul><li>No telemetry, no analytics, and no remote code execution.</li><li>Stores only the settings required for functionality (for example, your enabled domain list).</li></ul>
Permissions (why they exist)
<ul><li><strong>Broad website access</strong> is requested so the extension can apply styling on normal web pages you visit, <strong>after</strong> you enable the toggle for that domain.</li><li><strong>Tabs / scripting</strong> are used to keep styling consistent as you navigate, switch tabs, and reload pages.</li></ul>
Open source
<ul><li>Source code is available in the whyEXT monorepo on GitHub: <a href="https://prod.outgoing.prod.webservices.mozgcp.net/v1/49d182fecbd3f12e776b75acf897958a546a836497eabdd6c831f68df94d8712/https%3A//github.com/byrdltd/whyEXT" rel="nofollow">https://github.com/byrdltd/whyEXT</a></li></ul>

## Rankings

- #138,559 — Overall

## Permissions and access

### Permissions

- `storage`
- `activeTab`
- `scripting`
- `tabs`

### Host permissions

- `<all_urls>`

## Safety

- **Risk impact:** High risk impact
- **Risk likelihood:** High 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/whyext-dark-mode)