This is a blessing from the gods for students/workers with multiple accounts on the same website, like Gmail.

Lo uso continuamente, es perfecto! No es útil sólo para evitar el cruzado de perfiles para publicidad, si no para buscar vuelos o evitar el login con Google. Tienes el control sobre cuando quieres ser anónimo y cuando no de forma simple y rápida. Además, con Cookie Quick Manager puedes manejar las cookies por contenedor.

Отличное дополнение. Не хватает двух вещей - автоматического скрытия других контейнеров при переключении на нужный. И синхронизации открытых вкладок в контейнерах.

(X) Free and Open Source
(X) Trustworthy company
(X) Modular

I'm a big fan of this way of implementing advanced features - not adding bloat to the main browser, but enabling these features to all. Also is a modular approach for the casual hackers to make their own extensions based off of it.

Very useful to have multiple sessions open, I did not have any problem so far with this addon.
I recomend!!

Very useful

Very easy to use and user-friendly.

If Firefox has one "killer feature" this is it. It completely transforms the way a browser works, essentially creating sandboxed groups of pages that can only see others in the container and nothing else. It makes using the same site with multiple credentials painless and overall increases the security and privacy of browsing exponentially. If I had one gripe it's that the UI is a little clunky and it could really use some love. Otherwise, a huge thanks to the team behind this. You should be marketing this way more than you do.