Make Mozilla Firefox Colorful with ColorfulTabs Add-on.

ColorfulTabs for Mozilla Firefox is an add-on (extension) for Mozilla Firefox which lets you customize your Mozilla browser by colors. Note that you can only customize tabs and not whole browsers. This add-on proves quite helpful for me while navigating with multi-tabs. You have been given lots of features to mess around, so, make sure to experiment with ColorfulTabs options settings.

_