If you typically have multiple tabs open at a time in Firefox, and multiple tabs for the same site, you’ll probably like ChromaTabs. ChromaTabs is a Firefox extension which will assign a color to your opened tabs. Essentially you’re color-coding the sites that you visit which makes it quicker and easier to find them in your Tab Bar.
The screenshot below shows what my browser window looked like when I had multiple tabs open:
One of the options that I changed was to “Use Color from Site Icon” which gave my CyberNet tab the orange color, and my Yahoo tab the red color. The default option is to “pick a color unique to site name.” I found it easier to use when I chose the site icon color. To do this, all you have to do is go to Tools>Addons> ChromaTabs Options.