Dark Mode is a dark theme for the Firefox browser. On the one hand, it looks very elegant. On the other hand, the dark mode ensures that you don't have to look at a bright screen in the evening hours. We'll tell you how to set up the theme in just a few steps.

Activate Dark Mode on the PC

In the settings you can activate the dark mode. Image: © Screenshot / Mozilla Firefox 2022

Are you using the Firefox browser on your PC? This is how you can activate Dark Mode in the settings:

1. Click on the application menu with the three lines on the top right of the browser.
2. Select "Add-ons and Themes".
3. Click "Themes" in the menu on the left.
4. Select the Dark theme and click "Activate".

Tip : You can click "Disable" or choose a different theme at any time.

So all websites are displayed dark

With a suitable add-on you can view all websites in dark mode. Image: © Screenshot / Mozilla Firefox 2022

When you have Dark Mode enabled, the Firefox home page and tab bar are dark. However, other websites are still displayed brightly. With the right add-on, you can extend the dark mode to all websites. That's how it's done:

1. Click on the application menu with the three lines on the top right of the browser.
2. Select "Add-ons and Themes".
3. Next to "Find more add-ons" in the search bar, type "Dark Background and Light Text".
4. From the search results, click the appropriate add-on, then click Add to Firefox.
5. Go to "Add-ons and Themes" again and select "Extensions".
6. Enable the slider next to the Dark Background and Light Text add-on. All websites are now displayed in dark mode.

Tip : You can always disable/enable the add-on using the slider or uninstall it.

Activate dark mode on iOS and Android

Google Chrome is particularly popular on Android smartphones – the in-house Safari browser on iPhones. But Firefox also offers a browser app for Android and iOS. And there you can also activate the dark mode.

iOS : On iPhone, open the burger menu at the bottom right and tap "Settings". Select "Theme" and choose a light or dark theme.

Tip: If you don't see a choice between dark and light, you must first deactivate the slider for "Apply light/dark mode of the system".

Android : On Android smartphones, you need to download an add-on to use Firefox in dark mode.

1. Go to the app settings via the three-dot menu.
2. Tap Add-ons, then tap View Firefox Recommended Extensions.
3. Type "Dark Mode" or "Dark Theme" into the search bar.
4. Have you found the right theme? Then tap on "Install Theme" and then activate it in the menu.

summary

• With Dark Mode you can use the Firefox browser in a dark design.
• On the computer you can activate the Dark Mode in the menu under "Add-ons and Themes".
• You can install an add-on so that not only the Firefox start page and the tab bar are dark. This means that all websites are displayed in dark mode.
• Dark Mode is also available on iOS and Android smartphones for the Firefox app.