Have you tried using Mozilla's Firefox Multi-Account Containers plugin for your Office 365 problem?
The way I understand it, is that it separates session data so you should be able to be logged into different O365 domains and simply switch between them with tabs
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.
Have you tried using Mozilla's Firefox Multi-Account Containers plugin for your Office 365 problem?
The way I understand it, is that it separates session data so you should be able to be logged into different O365 domains and simply switch between them with tabs
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