A great tool to organize frequently used websites in categories and being able to access them quickly. It is visually appealing and provides all premium features for free to customize the look as per your own taste if you register an account. It also syncs and backs up all your settings and chosen tabs throughout all your devices. The only reason for not giving it full 5 stars is that unlike the chrome version of this extension, this one doesn't contain the wallpaper definition feature. Overall, a pretty great add-on. Recommended.