Really Great

Multi account using and most importantly mirror downloads. I am able to download multiple copies of the same file from a server when the server gives invalid responses.

This add-on is great for using multiple emails. Instead of needing to sign out and log onto another account, you'd just need to open a container and you're good.

I think it is a step in the right direction if you are conscious about privacy, it is a great foundation to build on.
I use it together with "Temporary Containers" to basically generate a new and independent private tab for every website I open.

I like this, it awesome
except I want there to be a shortcut to creating a new tab of a given container. theres Control + . which is find but i would like it if like control a opens one of the containers and control b in another and so on

its great tool to protect the online space , simply great

Great extension, helps a lot if you need to stay logged in with different users to test apps.

A great way to keep areas of your online life separate. I like keeping social sites from seeing my other web browsing.

good

I love it.

Setting all of my work-specific sites to "Open by Default" in the "Work" container is _super_ useful. It helps better separate work and life while still allowing me to use Firefox _everywhere_.

Thanks FF devs!

Using the app to compartmentalise social media networks and media browsing. Super easy and intuitive to use - hats off to the team that built this :)

Ok

It helps me organizing what I am doing by allowing me to add colorful tabs with customized symbols.

It also seem to divide the cookies in between the tabs.
I do believe it works because if an email account is open in a tab with a color, it does not open in another tab with different color.

However, when deleting cookies, cookies of all tabs are deleted all together.

Das Addon macht genau das, was es verspricht. Trennt die Surf-Umgebungen in einem Firefox.

I'm a software developer and I need to login into the same site using several accounts at the same time. Before I was using several browsers - super inconvenient. I love this add-on! Keep it up!

works well

From a technical point of view everything works great. I never had any issues.

From a user experience point of view, I love it. I use it to log into various Office 365, JIRA and Amazon Webservices instances for various fields of work: my own start-up and some other freelancer engagements. Since each tab is a separate container, I can sign into the different accounts at the same time. Before, I would use Chrome for one engagement and Firefox for the other.