Firefox is not only famous for its user friendly functions and optimized browsing experience but it also gives you the ability to change its appearance using themes and skins. However installing and finding new themes is a hard job so a better alternative to change the appearance of your Firefox browser is to use Personas.

Personas is a Firefox extension that adds light weight theming to your Firefox browser.

Personas makes browsing more fun and gives your browser the ability to include online components. It also allows graphic designers to make styles for Firefox without having any coding language and keeps you from the job of installing individual theme files everytime.

Take a look at some of the Personas that I liked

Get Personas for Firefox

Just install the extension and get started in making and using new themes and appearances.