I can log in at multiple accounts for the same site using different Containers (no more incognito back and forth!).

This module saved my life for multi-sessioning in application in the same browser !!

Brilliant add-on, finally no constant browser switching for websites on which one has multiple accounts. The colouring of the tabs in container colour makes it easy to see at a glance to which container a tab belongs. Great job, Mozilla, I love this add-on.

Containers allows me to remain logged into personal and business Twitter accounts open in separate tabs at same time which saves time.

Great one, I like how I can customize name & color of containers, I like to use custom icon too, great job Mozilla, keep it up!

Easy to use, awesome to be able to separate individual accounts with only one browser open.

Very useful, it allows loggin on differents accounts to the same service (ex: two gmail accounts). It helps limiting the tracking and is easy to understand with the default categories.

A great tool for dealing with multiple web accounts. They finally added sync, which means this is now feature complete! Awesome! Please don't ever drop support for this!

Its very useful. Thank you so much.

Great extension, the ability to open a site in its own container makes it almost perfect. One thing that still lacks is the ability to sync settings between firefoxes installed with same account.

This addon is really useful. It helped me manage my personal, college and work accounts without constantly signing out of one and signing in to another. If you have more than one account for the same thing I recommend this add-on.