It works well for nearly 3 years. I am using portable firefox with multi-ac containers for nears 3 years, I have 10 containers, those of them have different user agent, but suddently, since yesterday, all containers share the same user agent and cannot set different user agents for each container alternately.

Could not do my job without this plugin. Absolutely awesome!

Muy útil cuando se tienen cuentas de trabajo y personal en el mismo proveedor y hay restricciones de un lado u otro

Multi Account Containers works great for me. I use all the time and have almost 20 containers. Note: I am NOT a bot!!!

All the positive reviews claiming this extension works are either bots or AI. The fact is it doesn't work especially on Meta (Facebook pages).

good app

Funciona muy bien, tengo correos de diferentes tenants de 365 abiertos al mismo tiempo y sin conflicto.

Una de las extensiones más útiles de Firefox; para mí, indispensable. Facilita enormemente la gestión y acceso a sitios web con usuarios distintos.

The is the most useful feature in Firefox in my opinion. That I can set up addresses to open automatically in different containers is incredibly useful. It makes using multiple work accounts pretty great, even though it is sometimes a pain.