Didn't know this. Makes sense now why the bread is so much not crumbly. We don't eat out bread quickly enough and with the humidity where I am in Aus it just started making sense to refrigerate.
This is a great idea, and would make the issue with some extensions not being able to save tabs that are in containers moot.
One could define a meta-url concept that holds the web URL as well as any additional tab context, this then could remove the need for extension to manage their own arbitrary per-tab store.