Although the theme doesn’t change the font color to something very bright, it changes the UI up to some point. It has bright yellowish graphics with a forest in the background. If you like forests and autumn, this theme is specially for you. However, when you try to access some tabs on the right side, you might get issues reading the titles.

Like the aforementioned theme, it has black on one side and slow flake graphics on the other side. If you want to install a Christmas-style theme on your Firefox browser, Sparkle Snowflake Blue could be a great choice. The problem with the theme is that you might get issues when you have a full of Firefox tabs and go to access one of them on the right side. As the name says, it has some musical notes in the graphics alongside a black interface. If you like music and want to install a Firefox theme with a musical touch, you can check out the Black Musical Notes theme. The user interface looks much better than the system default UI with the sky-blue font color. However, it comes with a white and blue moon on the right side so that it looks much better than the complete black mode. 1] Blue Glass Moonīlue Glass Moon is for those who like to have a dark theme on their Firefox browser. To learn more about these themes, continue reading. All these themes are available on the official repository, and you can download them for free for your Firefox browser.

That is why you can use these Mozilla Firefox themes to personalize or customize the Firefox browser on your computer. Although Mozilla Firefox has improved so much over the past couple of years, you might not like the user interface.

Custom mozilla firefox themes