Well thought out design that put users first!!

handy extension, easy to use, keeps trackers segregated

This extension is really cool, & should be incorporated as a standard feature of ff ( along with vertical tabs in the sidebar ). ( Extensively tried in Linux & Windows10 ).

And it doesn't pilfer my private data. Viva la libre!

Extremely useful add-on! Throw away regular use of private tabs to switch from personal to work related navigation, and also, isolate your navigation between containers.

Este complemento es extramademente útil. Especialemente cuando se trabaja con varias cuentas de Google lo cual trae problemas de permisos al momento de utilizar Google Drive.
Muy recomendado!

Great add-on!
Please add a possibility to assign container with one click to the tab that is already opened in Default, without reopening it from the context menu.

This is most comfortable variant of multi-cookie functionality!
Это самый удобный вариант функционала мульти-кук!

Love being able to put different sites in their own little world. Able to store multiple log-ins for the same site easily, and making sure that I'm not going to be followed around the internet with ads from different log-ins.