Firefox for iOS has built in dark and light themes as well as Night Mode so you can customize its appearance. Learn more about changing your theme.
Set theme to light or dark
Tap the menu button at the bottom of the screen (the menu will be at the top right if you're using an iPad):
- Tap in the menu panel.
- Tap in the General section.
- By default "Use System Light/Dark Mode" will be enabled, use the toggle to turn this off to choose your theme display mode.
- Automatically: Firefox can switch between light and dark themes automatically based on screen brightness by selecting , then select your display brightness threshold to adjust the levels used under Threshold.
- Manually: To pick the theme you want, enable and then choose either or under Theme Picker.
Enable Night Mode
Learn more about Night Mode in Firefox for iOS.