The addon desc (https://addons.mozilla.org/en-US/firefox/addon/facebook-container/ https://addons.mozilla.org/en-US/firefox/addon/facebook-cont...) says: > Fac

The addon desc (https://addons.mozilla.org/en-US/firefox/addon/facebook-container/ https://addons.mozilla.org/en-US/firefox/addon/facebook-cont...) says: > Facebook Container leverages the Containers feature that is already built in to Firefox. When you enable Facebook Container, you may also see Containers named Personal, Work, Shopping, and Banking while you browse. If you wish to use multiple Containers, you’ll have the best user experience if you install the Firefox Multi-Account Containers extension https://addons.mozilla.org/firefox/addon/multi-account-containers/ https://addons.mozilla.org/firefox/addon/multi-account-conta... So: No, it is not.