[Suggestion] Tab Groups act like Containers

Love tab groups for staying organised when I use Edge, but I feel they would be more useful if they acted like containers in Firefox. 

Let them have their own cookies and add a context option to open link in a tab group or set a domain to always open in a tab group. 

Of course, this would require the browser to remember tab groups when closed. 

See; https://addons.mozilla.org/en-US/firefox/addon/containerise/ (addon which allows you to set domain patterns to always open in specific containers)

https://addons.mozilla.org/en-US/firefox/addon/temporary-containers/ (addon which creates a temporary container that deletes when the last tab with that container is closed - it will delete history and cookies)