NanCheng7 on Nostr: npub15c0uz…thxke I want to know that the page information saved in my browser is ...

npub15c0uz3l55klsrq6l9zlvmtkvxwv2wy7q0rm7y249qkmzxpaj5gks5thxke (npub15c0…hxke) I want to know that the page information saved in my browser is stored in which address of which computer. Can I modify it in the settings?
In addition, regarding the workspace function, can a function be designed so that all other workspaces except the currently opened workspace are dormant.