Ask HN: How are you using Firefox containers?

One for the production site (I make it colour the browser chrome red with the Containers Theme extension [1])

A few for other ephemeral environments I work with

One for personal stuff

[1] Containers Theme extension https://addons.mozilla.org/en-US/firefox/addon/containers-th...

I do a bit of consulting so I use a different container per client. I use to use chrome profiles but love firefox containers for that workflow.