Firefox Themes

Themes (formerly Personas) is a Firefox add-on that allows you to change the look of your browser with easy-to-install, easy-to-use themes. There are thousands of themes to choose from, with more added every day.

Free Open Source Mac OS X Windows Linux Firefox

VivaldiFox

This provides the following features: - Custom theme creation like in Vivaldi - Integration with page colours Current issues: - Partial support for complete or lightweight themes

Free Windows Firefox

Personas Plus

Personas are free, easy-to-install "skins" for Firefox. Personas Plus extends that built-in functionality to give you even more control and easier access to...

Free Mac OS X Windows Linux Firefox