Works perfectly.
It allows me to work with multiple accounts from the same window, with a smooth workflow.

Después de largos años esperando a esta funcionalidad en algún navegador y sortear su falta usando varios navegadores o programas tipo Electron y similares... ¡Por fin! podemos tener varias identidades abiertas en un mismo navegador sin que se peguen entre ellas. ¡Aleluya!

Encapsulation for containers!

This is an awesome plug-in for developers or anyone that works on the same webapp with multiple user accounts.

As someone who is worried about websites spying on my activity, I love this add-on. It will be even more awesome if the ability to Sync the containers is added.

This is such an awesome feature. I don't know how I ever got along with it. It is great for keeping different aspects of your online lives separate.

Especially worth its weight in gold by allowing you to keep your online banking transactions completely separate from everything else for an added layer of security.

Very useful, nicely separates different web activities. Only missing is synchronization via Firefox account.

Спасибо! Очень полезное дополнение для браузера)

It's a very practical add-on. No complaints whatsoever. However, I'd like to have an option to sync settings across multiple devices. This is a huge deal-breaker.

It's very good but when i open a new tab from a site in a container I want to have the option to choose if the new tab will open on the same container or not. For example if i open a site from a youtube video description witch is on a container I want to have the option to open the site out of the container.

Would be 5 stars if it would sync settings between machines properly.

The greatest firefox add-on i ever installed. It helps me to move content from one account to another, to separate my identities (work, baking, personal).
It gives me a better sense of security.

This is like my most favorite Firefox addon in the whole wide world (next to an ad blocker like uBlock Origin). Save me the hassle of having to create separate Unix accounts to browse using other identities. My current wishlist for this addon: a keyboard shortcut to open a new tab using the same container as the currently opened tab.

Multi-Account Containers make it so easy to keep your browsing habits separated. I'm opening University websites, banking and shopping tabs at the same time. Awesome!

Thank you mozilla for this awesomeness!

This will get five stars when it will sync my containers across computers.

This is a game changer extension for personal privacy. Preventing tracking from websites like Facebook and Google across other websites we visit. The only thing this extension is missing is a way to backup manually created containers and integration with Firefox Sync.

What a great idea to try and separate browsing tabs from prying sites!

I am really enjoying this container tabs add-on, it has a very useful functions such as separating accounts, defining a specific container to open specific websites, hiding an specific container...
The reasons I'm not going full 5 stars here are in my next paragraph babble, but it's still a REALLY GOOD add-on!
I'd love to see just few more features such as sorting container tabs in new windows and being able to "mute" or "offline" certain tabs without hiding them (and also the I could choose what tabs to un-hide and in which - or a new- window) much like how you used to be able to choose what to restore after a crash. Being able to open bookmarks on containers also, and setting up a default container... Also, being able to save settings with my firefox account for cross-device ease and consistency!