This is my most useful extension. It's saving me so many headaches.

Brilliant, even with 3rd party cookies on the way out this is still great for using multiple accounts on the same site. I use it isolate work and personal accounts and to isolate accounts for different clients at work.

It doesn't remember/recognize two different Twitter accounts! I have two pinned tabs in two different containers, but every time I close and reopen the browser (e.g. after pc reboot), it opens up only the first account in both tabs! As if the containers don't recognize those are different accounts.

Really like this add-on and I get a lot of use out of it! If there's one improvement I could suggest it would be to allow users to add their own icons for new container categories. As it currently stands, it seems like you're stuck with a list of default icons you can choose from.
But that small gripe aside, this is basically a 5 star add-on that I'd highly recommend to any security-conscious person. If you'd install uBlock Origin, you'd be a fool to miss out on this.

Extension that I cannot live without.

Excelente iniciativa, al principio funcionó como esperaba, pero cuando establecí un contenedor por defecto para algunos sitios web ya no podía cambiar a otro contenedor, siempre abría en el contenedor por defecto y eso no me pareció bien.

Sería bueno que mejoraran la manera de cambiar de contenedor para que sea más fácil. Pienso que donde aparece el badge con el nombre del contenedor actual se podría dar click y que aparezca la lista de contenedores para cambiar de una manera más simple.

Mientras tanto seguiré utilizando la extensión, pero me gustaría que esos aspectos puedan ser mejorados.

Excellent and straightforward way to increase privacy.

Can't login to Google when limiting www.google.com to designated sites.