Firefox - is it possible to custom color tabs?

Question

Mozilla Firefox

Good afternoon.
The presence of more than 7 tabs starts to wildly disorient me, what and where is happening while I work. Yes, there are maniacs who have their darkness open and manage to understand where and what is, but this is not about me.
So, it became necessary to separate one group of tabs from others.
Searching for addons did not give adequate results.
Maybe someone has come across something similar?

Answer 1

I know that when using containers , each tab is highlighted in the color that was originally set for this container, so if you open 7 tabs and assign containers to them, they can be distinguished by color. Even more I will tell you there, in addition to coloring, it will be written what kind of tab it is.
for example , my screen
in the address bar says "Work" or you can write anything you want.