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This one literally makes my life easier!!!
Thank you so much.

this one is much better and safer than sessionbox.

besides it's also very good-looking.

This is really a game-changer. I love to separate personal and professional acounts/lives.

A necessity in the age of surveillance capitalism. It allow me to be login into gmail or youtube in one tab and search google anonymously in another one.

easy to use!

One of main reasons Firefox is preferred over all alternatives.

Best extension for privacy ever!
It makes possible to have several identities/account on the same platform.
Also, you can containerize websites which try to connect everything you do.
I wish it was available for Android too, but I understand it would require special UI and need more computing resources.

[to all the people finding it useful but complaining of minor missing features and giving few stars: it's not nice!]

Essencial. Essa extensão auxilia muito na privacidade. Abrir cada tema num container é imprescindível para uma navegação efetivamente privativa. Recomendo.

神了，超好用

Very useful to use several accounts of the same service. Also, to reduce unsolicited tracking.

Still the best

I LOVE this extension. I work at job that has me doing a lot of stuff and being able to separate my work web life from my personal web life is AMAZING! I can be logged into two CMS systems and never have to log out because of containers. It's glorious.

The add-on works well in the background and just shows a decent notification to check the visited website is opened inside the specified container. Good idea - great implementation!