Firefox Personas Extension
Skin firefox according to your mood. Change your Firefox themes without having to download, install and restart the browser using Firefox Personas.
In this version, the Persona selector is dynamically loaded and populated from a JSON feed and all designs are loaded via URLs to remote resources. All changes to the browser chrome are applied instantly, with no need to restart.
Get Firefox Personas extension : https://addons.mozilla.org/services/install.php?addon_id=personas
More on Firefox Personas at: http://labs.mozilla.com/2007/12/personas-for-firefox/
a very cool plugin! just installed this one
Yeah – just waiting for the developers to get a hold of the API’s to get even more themes