Will signing in automatically copy my old browser progress?

Keep using the browser where you completed those lessons. Sign in on Learn with the email you want to use. If the page offers to import progress from this browser, review that option and choose it to add the local completions to your email profile. The import is deliberate so shared-device activity is not silently assigned to the wrong person. Check the resulting completion list before clearing browser storage. Signing in on a different device cannot recover local-only progress from the original browser. CookieSensei starter Q&A · example discussion.