[ORIGINAL 1 Star]Working adequately until today. Now Firefox 88 on Windows 10 will not load with this plugin enabled.[/]
Firefox updated to 89, so I enabled M-A Containers once more and the plugin seems to be working fine again.

I want to manually add websites, because it can be annoying to get to the website sometimes. But overall good extension.

The only thing missing for a 5 star, personally, would be the ability to set the order of the sorting of tabs

I hope I can add '*.example.com' pattern in containers' site lists.

Incredible when it comes to privacy and security, but it does have it's quirks. For example you can't add websites to containers by simply typing the url to the website in and you can't add a website and it's sub-domains until you can reach the original website itself (and some websites automatically redirect you to a sign-in subdomain, for example Microsoft)
It is also quite glitchy sometimes. Randomly closing tabs rarely.
It's very good however as websites are limited to their own containers and the switch to containers is pretty seamless.

De oplossing om aan te melden bij verschillende e-mailboxen van dezelfde provider. Bespaart een hoop ergernis en maakt het super simpel zonder iedere keer af te melden bij schakelen naar een ander e-mail account.

Everything fine with this new feature like Multi-Account Containers but I can just add that I if you can do something with the history by container can help to no loose the different webpages that I visited, because the container just safe the current page where was my last visit, it doesn't show me the movements forward and behid that I made.

Hiding Containers don't work anymore

a bit finicky to set up

Awesome, except sync doesn't kinda work. Had to set up several times.

please release a feature to manually sync custom containers and settings. i temporarily turned off all addons for troubleshooting and when i turned it back on, all my custom settings are gone. also link to instructions on how to sync in the addons page. thank you

Very nice to have cookies in separate boxes. Noticed a glitch: if I right-click on the New Tab ("+") icon, and select "No Container", nothing happens! Selecting a container name opens a tab in that container. In contrast, long click on "+" icon, and selecting "No Container", opens a tab.

Strongly recommend also getting the Cookie Quick Manager extension for container-aware tasks like deleting cookies from a container, or copying cookies from one to another.

[EN] Add the option to display only cards from a given container, e.g. only from the "shopping" container.
Something similar to "Workspaces" in Opera.
[PL] Dodajcie możliwość wyświetlania tylko kart z danego pojemnika np. tylko z pojemnika "zakupy".
Coś podobnego do "Kontekstów" na Operze.

love love love it. the sync function doesn't appear to work, though. anyone know who to talk to about that?

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.

Me gusta mucho la extensión, más con los cambios que han hecho para facilitar el cambio de contenedor.
Pero siempre hay algo que afecta la experiencia de usuario cuando se reabre la pestaña en otro contenedor. Esto es, que si se tiene la pesaña abierta en un contenedor y luego quiero cambiar a otro contenedor aparece un mensaje consultando si quiero continuar abriendo la pestaña en el otro contenedor, lo cual me parece innecesario.

Sé que no es un error, pero eso afecta en la usabilidad y me gustaría mucho que lo puedan mejorar.

It's a great initiative, but it could use better integration, e.g. Sync settings per container, history based on container, etc.