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.