This is ludicrously helpful for someone like me who needs to test the same site using multiple user profiles and accounts. Smart implementation.

An excellent add-on that makes it extremely easy working with multiple-accounts in the cloud without having to run things in different incognito windows. Highly recommended for people working with cloud providers and need to login using different roles.

Great app for working multiple accounts, for multiple clients is an amazing time saver.

Fantastic extension! My only wish would be to have keyboard shortcuts or mouse gestures I could map to open new tabs in specific containers.

Always open in DEFAULT container does not work. It always asks me since I one time opened site in non-default container. This behavior is annoying.

In a World where Privacy has become Luxury, or a hard Task to implement, this Add-on like Firefox Multi-Account Containers, like Linux and Privacytools.io and many others Libre and Open Source Software and Tools contribute to help People fighting against the monopolistic Plagues like Microsoft, Google, Facebook, Amazon, Apple etc

A great addon, but it's missing a few features:

- Container sync
- Ability to manually edit container assignments and use wildcards. E.g. it's useless for something like Salesforce where every sandbox and scratch org has its own domain.
- Ability to assign URLs, not just domains, to different containers.