I also use the Firefox multi-account containers to set a temporary container for every new tab. To not lose logins etc I'm websites I visit frequently, I set up dedicated containers for those. Work very well.
Anyone else with experience of the Firefox multi-account container extension?
The terminology is a little confusing: Containers or "Container Tabs" is a session-management tool that's baked into Firefox, while Multi-Account Containers is an extension on top of that that allows you to automatically sort specific domains into containers, so when I open e.g. a YouTube link it automatically appears in a YouTube container, which knows nothing about my Google account. IMO the functionality of the extension (which was written by Mozilla) should be added to the browser itself.
https://addons.mozilla.org/en-GB/firefox/addon/multi-account...
Right now I use safari, chrome, firefox, and edge to keep the four identities I use for different projects separate thanks to Google not playing nice at all with the GCP account you are using not being the primary Google Signin.
In fairness, some of those sites might not even know the like button is used for tracking and just think it's for helping them grow their facebook audience.