Firefox vs Firefox Multi-Account Containers by Firefox

How do Firefox and Firefox Multi-Account Containers by Firefox compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.

Directory details: Firefox and Firefox Multi-Account Containers by Firefox
Directory detail	Firefox	Firefox Multi-Account Containers by Firefox
What it is	Mozilla's official repository contains the source code for Firefox, a web browser with builds for Windows, macOS and Linux.	Firefox Multi-Account Containers separates parts of a user's online activity into distinct containers within Firefox.
Website	github.com/mozilla-firefox/firefox	addons.mozilla.org/en-US/firefox/addon/multi-a…
Type	Open-source project	App
Topic	Firefox Extensions	Firefox Extensions
Pricing	Free	Not confirmed
Platforms	Linux, macOS, Windows	Not recorded
Open source	Yes	Not stated
Language	English	English
Alternatives	5 alternatives	8 alternatives