Create an json export from the Firefox browser console for local storage of current website

localStorageExport.js

const snapshot = {
  timestamp: new Date().toISOString(),
  storage: Object.fromEntries(
    Object.entries(localStorage).map(([key, value]) => {
      try {
        return [key, JSON.parse(value)];
      } catch {
        return [key, value]; // Keep as string if not JSON
      }
    })
  )
};

// Save to file
const blob = new Blob([JSON.stringify(snapshot, null, 2)], { type: 'application/json' });
const filename = `localStorage-snapshot-${snapshot.timestamp.split('T')[0]}.json`;
const link = document.createElement('a');
link.href = URL.createObjectURL(blob);
link.download = filename;
link.click();
URL.revokeObjectURL(link.href);