Are you tired of how your Gmail looks? Do you think that Google’s own mail client’s interface is nice and clean but you still want to give it a new more futuristic look?

All you need to have to do so, is an extension called Stylish: it is a simple add-on that imports a CSS file and applies it to any site you want, so that any page can be redesigned at your wish.

After you install Stylish, you can visit one of the sites where people upload their styles and start looking for the ones you like: the most famous one is UserStyle.org.

But let’s go to the point of our mission: Redesigning Gmail.

One of UserStyle.org’s CSS files is the one we are looking for, and you can find it at this URL, http://userstyles.org/styles/5867. After you have imported it in Stylish and restarted your Firefox, this is what you are going to get everytime you visit Gmail.

UserStyle.org has a limited length for the CSS file, so the author of the style has decided to host it on his own server. Here is where you can get the latest version, that you will have to update manually in Stylish: http://www.naverniouk.com/design/gmail/gmail.css

So get on and explore all the styles that are available, and if you want point to some of them in the comment section, so that I can review it and more people can ejoy the new view.

Here some styles selected for you by Mashable editors, ready to install: http://mashable.com/2007/06/05/firefox-stylish/