Very good. Lets me keep things together. And apart.

This plugin is great. I have removed my "facebook" sessions plugin and I use Tab Session Manager sessions for Facebook and Google now. Which means I can log-in to different Facebook and different Google accounts at the same time.

I keep another for private email and browsing. Another for work matters. Get the picture? It is like being able to have 4 or 5 computers running Firefox or 4 or 5 firefoxes on the go at the same time. And I believe in this time, this is a NECESSARY plug-in.

Pity is this is not on Mobile. A great hole in the usefulness is that containers themselves do not get synchronised. Is there a Sync. API for that plugins like this one can use?!

One 'extra' I'd like is for the "Always Open in ___" feature to accept sub-domains or a URL pattern. I'm putting that in here because I can't use Multi-Account containers with Google/Gmail when "[x] tick that box". With that off, Multi-Account keeps Google tabs separated. Just an idea.

Bug: in my ff options there is a message "An extension, Firefox Multi-Account Containers, requires Container Tabs", how to remove that?
I don't understand what and how this is working, but installing this extension is a great relief. Thanks.

This is a time saver as i use different accounts in Mozilla for my parents and for myself.
Love it. Recommend it.

Amazing idea! Let's hope it really works.

Amazing tool! I manage several different Office 365 tenants and this allows me to setup admin and test user profiles for each without having to open private tabs or use multiple browsers.

Excelent!

Excellente extension pour gérer un même site ouvert avec plusieurs comptes en même temps. Super intuitif, pratique et fonctionnel, bravo !

awesome add-on!

Great tool !!!
But : no keyboard shortcuts (Linux), default container configuration is sometime lost, no synchronisation between Firefox instance.

Works like a charm!

I develop apps which require multiple sessions with a role each, this addon has made my life easier

Très pratique pour gérer plusieurs emails !

Love this tool. Use it daily and makes sign in to different accounts so much easier

Very Helpful to keep myself organized.

really awesome feature, well done. intuitive UI. found it very easy to use and super helpful in my day-to-day workflow.

Love it. I can now use the same browser under 3 different credentials. My work account, my work-admin account, and my personal account. All from the same browser. Don't think any other browser can do that, yet.

I was looking for such function for a long time and this extension was the Gold Mine !!

Works very well. Opening new tabs now exclusively from the multi-account icon.

"unlike Facebook Container, Multi-Account Containers doesn’t prevent you from opening non-Facebook sites"

and therein lies the problem; you can't restrict a container to a specific domain/domains - really guys?

...

It is a great tool for separating different activities and their related accounts, even more when one has several accounts on the same service, but for different uses (personal/professional, or other).
However, I wish that it be possible to have whole windows be dedicated to one container type, or that there be a shortcut to open a new tab and chose a container for it.