The comment was: make the Firefox containers work in private mode.
In Safari private mode. Each tab has no knowledge of another (e.g. log into Gmail and then open a new tab and go to Gmail and you won't be signed in).
Firefox doesn't have this tab level isolation.
Also offer equivalent of safari's lockdown mode. So images and site features capable of loading malware etc are blocked by default.
But I understand that other people have other needs. It can be very useful for developers for instance. Make it an option, maybe.
firefox --profile $(mktemp -d) --private-window
Pretty interesting how preferences can vary, because this bothers me everytime I use incognito mode on safari and think, can this not just work like in Firefox.
It's very handy for sites where you may have more than account
For that Firefox's container tabs are a much handier option as you can stay logged in and also open new tabs that are already logged in. It has colours to tell apart which tab is part of which container
My solution to this is having multiple Firefox profiles where the default one clears all history/cache/etc automatically upon closing (default in Librewolf). It's not technically private mode so containers work.
> disposable containers which isolate the data websites store (cookies, storage, and more) from each other
Granted, they're not in private broswing mode just normal mode, but same effect
[0] https://addons.mozilla.org/en-US/firefox/addon/temporary-con...
Why would you create a privacy tool, and then not offer it in private mode. Makes no sense.
(You can setup Firefox so it's permanently in Private Mode and clears history and data on exit - as per Libre comment above -,which is how I have it set)