コンテナーという形式で複垢ができます。
コンテナごとにタブは色分けされており一目瞭然。
また、あるコンテナの全タブに対して新しいウィンドウで開くとか、隠す（一旦閉じて、あとで開けるようにする）機能が「あとで読む」タブを一旦しまえるので地味に便利です。

This makes testing different user roles a lot easier compared to the two you would get with private mode + normal mod. Love it.

It's perfect at what it does.

Great! This is the most useful extension for me! Now i can login to multiple accounts of a website!

Indispensible if you need to juggle multiple identities around!

For example, I have a personal Google identity and couple of work identities viw G-Suite. With this extension is easy to keep all those identities apart in a separate containers and never worry about messing up personal accounts with work accounts, etc.

A very nice feature (that unfortunately I found to be poorly discoverable) is the ability to set a default container for a domain/website – all new tabs opened in the given domain will automatically be opened in that container.

I do miss an option to set a default container for an entire window, so that all new tabs opened in that window would automatically be opened in that default container.

It requires a bit of setting up if you're slightly paranoid; but after that, it becomes a fantastically useful extension.

One feature I didn't know I wanted but holy hell do I use it often. Ever see a youtube video you want to watch ONCE but don't want to get 3 weeks of recommendations based on it? Just use a container.

крутое расширение. Узнал о нем, когда открыл новую вкладку, увидел рекомендацию снизу. Очень круто :)