Been using UNIX since the late 80s; Linux since the mid-90s; virtualization since the early 2000s and spent the past few years working in the cloud space.
Location
Alexandria, VA, USA
Education
B.S. Psychology from Pennsylvania State University
It is a core feature. What isn't a core feature is the UI to use it. That's because Mozilla wanted anyone to be able to create a plugin using the underlying code and not force a specific plugin on them. An example of a plugin using the underlying code is Sidebery, a tree style tabs alternative (a much better one if you ask me). You can use multi-account containers without using the multi account containers plugin.
No. Haven't. Didn't even think to look for such a plugin.
Understandable!
I don't know why they haven't made it a core browser feature yet...
I only stumbled on it when searching for a Firefox equivalent to Chrome's new tab groups feature.
It is a core feature. What isn't a core feature is the UI to use it. That's because Mozilla wanted anyone to be able to create a plugin using the underlying code and not force a specific plugin on them. An example of a plugin using the underlying code is Sidebery, a tree style tabs alternative (a much better one if you ask me). You can use multi-account containers without using the multi account containers plugin.
Aaah okay! That makes a lot of sense actually :D