Use profiles to separate work for each tenant, whether you use firefox or chrome. Firefox supports multiple profiles too! Chrome supports multiple profiles. And launching chrome/firefox with certain profiles requires setting up shortcuts with --flags. So you can have one browser shortcut for one tenant and another shortcut for another tenant.

simple tab groups + Firefox counters are far superior that using different profiles

Not sure how containers can be superior than profiles for separating sessions between work clients. Auto switch container feature is not applicable. And reloading tabs in another container should not ever be required. Plus, logins and passwords of different work clients do not get merged into one profile.

You can also make new profiles on about:profiles and open a browser as another user without destroying SSO for your current user. I'm assuming Chrome has something similar, but I've never installed it so I don't know.

Chrome supports multiple user profiles. I assume Edge and Brave do too.

that works to some of the same things firefox can do, but you can also tell firefox to "Always open this site in my banking container" and the next time you load it up, from any container, it will switch it the one you prefer. Also, I really love having amazon and facebook on their own containers, to cut down on all the weird advertising stuff I see..

Chrome's support is way more invasive on google sites. Once you "go multi-profile" you are forced on every google site to do the same thing, because of the borderline-illegal tight integration of Chrome with google sites.

For instance, I can't have Youtube Music playing something on one profile while doing a Google Meet on another profile in a different tab (has to be the other profile window). In Firefox it's site-based (and tab-based) but Chrome locks down on any Google site.

Finally it's actually really hard to undo multi-profile in Chrome once you switch to it, I had to throw out all my Chrome profiles to get back to the old, preferred behavior.

Or you can start them pointing to a completely different user-profile-directory.

I do that, no chance for one to leak into the others.

Or you can just use FF containers - which is 99% less work.

Yea, but those came about after I'd built the wrapper for quickly launching different profiles of either Chrome or FF.

FF containers are more work than the 2 clicks I do now, powered by some Python I wrote like 15 years ago (with minor maintenance).

you still have to switch through browser windows right? with containers it is just a tab click and you can put related tabs for a particular topic in a single window