After having been using different browsers for awhile to get around this issue, this is the best feature I could ask for in a browser!! Great add.

Efficient, easy to understand interface and colourful outlines on tabs to visually represent what Container they are in.
5/5

One of the most useful extensions I have ever used. This could even be included by default in Firefox, since it the best way to manage different sessions efficiently.

The most useful extension never invented period !
Don't forget to activate the show in bookmark option which allow you to open the same bookmark with multiple sign-on.

Très bonne fonction pour séparer des contextes que je souhaite isoler les uns des autres. L'add-on n'est pas encore très intuitif, mais permet progressivement de programmer chaque site avec son contexte de destination.

That has been amazing as a both an individual and a family member! I have used previous solutions that never work quite as well as intended. Thank you as always Mozilla!!

Please add a way to re-order the list, & to stop adding the same old default categories to my current ones on new installs.

One of the most useful extensions I currently use. I do wish they would add tab stacking and tab previews, but all the same, 5 stars.