Make your Firefox Tabs Colorful
ColorfulTabs is a neat little extension for Firefox which allows you to make those colorless Firefox tabs colorful. This will make them more beautiful and easy to distinguish.
Though very simple in nature, it does give the user a few choices. Users can select any custom color for there tab or let it generate one randomly. They can also use a background image for the tab or generate a tab color based on the URL. Though not very important, but still a sweet application to further enhance the look of your Firefox.