Tab Preview

For sure that you have reallised that when you are using Firefox and you have opened a lot of tabs, sometimes you don't know what is on each oone.

Tab preview, a simple name which pairly tells everything about this useful add-on which will add a preview to each tab when you put the mouse on them.

By this way you'll know what website is in that tab you are going to press and you'll save a lot of time when surfing the net if you are one of those users who usually have more than seven tags opened.

Finally, forget about configurations and settings, just install and use it. It's easy and useful give it a try.