Local Storage is "local" in that exact browser and ONLY in that browser. To retrieve something stored in Local Storage, you must use the same browser, the same key and retrieve it from a page in the same origin (e.g. domain).
If you want something available across multiple browsers, then you have to identify the user somehow (usually a user login) and then you need to store the data on a server somewhere so that the data can be served to the same user across multiple browsers.
与恶龙缠斗过久,自身亦成为恶龙;凝视深渊过久,深渊将回以凝视…