Browser Storage in Firefox: IndexedDB, Cookies, Storage Quotas, and DevTools Inspection

Modern web applications utilize various browser storage mechanisms, including localStorage, sessionStorage, IndexedDB, cookies, and Cache API, each featuring distinct persistence and capacity. Firefox implements these APIs and provides a dedicated Storage Inspector within DevTools, accessible via F12. This tool allows developers to inspect key-value pairs, database records, and service worker caches for the current origin. Firefox also manages specific behaviors regarding storage quotas, partitioning, and clearing to ensure efficient debugging and data management.