What does HackerNews think of multi-account-containers?
Firefox Multi-Account Containers lets you keep parts of your online life separated into color-coded tabs that preserve your privacy. Cookies are separated by container, allowing you to use the web with multiple identities or accounts simultaneously.
I have a feeling that they are relying on extension developers to add features/functionality.
This Facebook extension is a reactionary Facebook-specific adaptation of that extension. But it is still useful for many users since it doesn't require any user interaction.
I think multi-account-containers is more convenient than profiles since it provides a single interface to manage the containers and browser settings are shared, but I am actually using profiles on Firefox because the extension doesn't seem to support the "Never remember history" browser option.
[1] https://github.com/mozilla/multi-account-containers and https://addons.mozilla.org/en-US/firefox/addon/multi-account...