Amazing plugin

Must have add-on for developers, power users, anyone who has multiple accounts on web sites / services, privacy conscious users and anyone who is aware of cookies and other more advanced tracking methods and want to keep activities separate (ex. Work, Personal, Development, Anonymous, etc.)

Really good extension for separation of concern :)

This extension was, originally, part of Firefox. I kind of understand the reasoning behind removing it and making it into an independent add-on (faster updating, independent development etc.), but I fear some day Firefox will drop it altogether, like it did with other technologies (let's not talk about WebSQL and the amazing beast that was XUL).

Anyway, this is an essential extension, full of features (don't forget to check its options for more essential features that come disabled by default, for whatever reason) and very light. There are lots of reasons for not leaving Firefox for other browsers, and this is surely one of them!

Imagine that you admin lot of accounts. Containers made life easier.

This is the key reason I will never stop using Firefox. Such an underrated feature.

Works excellently. Perfectly solved a need I had. I started using Mozilla over Chrome for various tasks because of how valuable this is as a tool. My only complaint is that there doesn't seem to be a way to reorganize containers, without deleting them and recreating them in the order you want. This becomes troublesome when you have a lot and need to configure their ordering.

Multi-Acc Containers is a awesome tool for how I interact with Firefox. It's one of those technology tools that once you use it for the 1st time, you simply can't go back to your old ways ever again.

This add-on is absurdly useful for Enterprise IT administrators. It enables easy use of dedicated admin identities into separate containers for isolation form normal productivity work, and is particularly useful in contexts like Microsoft 365 / Azure where logging in to the same URLs multiple times in the same browser needs to happen with separate identities that have separate permissions granted.

Multi-Account Containers is a game changer for how I interact with a web browser. It's one of those pieces of technology that once you use it the first time, you simply can't go back to the older means of interaction absent the new features ever again. The degree of quality of life improvement I've received in using this add-on is gigantic, probably the most impactful change since discovering tabbed browsing in the late 1990s.