Rated 5 out of 5 stars

Great addon, if you have an addon called "Classic Compact Options" it will interfere with the performance of colorful tabs. Classic Compact is a theme for firefox and there is a separate addon for options. That addon will cause colorful tabs to not work Colorful tabs is a neat addon, i give it 5 stars

This review is for a previous version of the add-on (4.8.1.6.2.1).