Best Firefox's addon in my opinion. It's very useful.

Love it

I would love to have a shortcut eg. Ctrl+G to open a menu that lets me select the group for the new tab.

I use it to log in two or more Google accounts in different containers while still being able to search anonymously in a default tab when needed. This is really great !

It would be even better if the menu allowed to open a standard default tab in addition to container tabs, though it is still possible by pressing Ctrl+T.

There is countless great things you can do with Multi-Account Containers to control your privacy and use multiple identities in the same time. It even helps you to keep your tabs organized.

I highly recommend it if you like to keep many tabs open.

Containers is very useful, but I think there are two point inconveniet:

1. "Sites assigned to a Container" does not support match patterns (*), so you can't add *.example.com and you have to add subdomains one by one : (
2. The page "about:preferences#containers" is useless……

Pretty good

fantstic does the job well and the tabs are neatly arranged in one large window

It would be great to have keyboard shorcut binding to open a tab of specific container!

I love using containers. They are simple to use, plus you cant be tracked

I LOVE this add-on. It one-ups Chrome's multiple user profiles since I can have a Production tab and a Beta tab right next to eachother in the same browser window instead of across multiple browser windows. I'd love the ability to have more colors (I'd especially like a "pure red" for "Danger") and a few more icons. But overall I love it! At this point I can't imagine working any other way without it.

I honestly could not do my job without this extension. Never get rid of it.

Innovation at its best

Love it. Perfect for separating work-accounts and private-accounts

Containers has simplified my use of Firefox where before I ran multiple browser profiles to be logged into different accounts, now I can run all of them in the same window. As a side benefit I can more securely isolate websites from each other.