Although Firefox isn’t an app available from the Microsoft Store, it’s been updated to automatically follow the color theme you set on Windows 10. However, if you want Firefox to use a specific theme color no matter the mode you use in the operating system, you can quickly accomplish this by changing the browser settings. In this guide, you’ll learn the steps to set a permanent default color theme on Firefox to prevent the browser from changing colors when you switch to light or dark mode on Windows 10.

How to set default theme for Firefox

If you want to prevent Firefox from changing the theme color to align with the color mode you set on Windows 10, use the following steps: Once you’ve completed the steps, Firefox will remember your settings, and it won’t change it the next time you change your system color theme. Firefox main menu Firefox theme settings If you want to revert the changes, you can use the same instructions outlined above, but on step No. 4, make sure to select the Default option. All content on this site is provided with no warranties, express or implied. Use any information at your own risk. Always backup of your device and files before making any changes. Privacy policy info.