This is an add-on that lets you invert the website's color scheme by inverting/changing the prefers-color-scheme media feature of CSS without requiring you to change the whole system style setting. You can also trigger toggling the dark mode with the hot key <kbd>Ctrl</kbd>+<kbd>Shift</kbd>+<kbd>B</kbd> (customizable in the Firefox add-on settings). This extension only works with Firefox v95 or higher. ✍️ Usage ✍️ You can use a toolbar button to toggle whether it should force a dark mode or not. It displays a yellow moon icon, if it is enabled and forces the website to be dark. ⛱️ Test websites ⛱️ Here are some well-known websites that support the dark system style, so you can test them with this add-on:

📝 Development 📝 The add-on is free/libre open-source software and developed on GitHub. Fork it on GitHub and contribute. There are some easy issues to start with. 💬 Permissions 💬 This add-on requires as few permissions as possible. An explanation of all permissions, this add-on requests, can be found on this site.