There are various improvements around storage we should make in Gecko to make the web platform a more happy medium, here are some of the areas we can improve: * Consolidate storage features. At the moment e.g. localStorage and IDB live in their own world. Rather, cookies, localStorage, sessionStorage, IDB, Cache API, service workers, history API, notifications API (once we add storage), filesystem API, and application cache all need to sit together and honor the same rules. * Improve storage UI. E.g. when the user runs out of disk space they should have a way to free up more by removing some persistently stored sites easily.
Note from https://wiki.whatwg.org/wiki/Storage#Rollout: "If this is too much at once, we can partition it as such: v1: Persistent permission and usage/quota estimates. v2: Boxes. "