NotebookLM is moving from notebooklm.google.com to notebook.google.com. Extension stopped working, or disabled after the update? See the fix

NotebookLM is moving to a new domain — and the update needs one click from you

Google is gradually moving accounts from notebooklm.google.com to notebook.google.com.

Extension versions before 1.9.4 won't load on the new domain.

v1.9.4 is out: Firefox is live now; Chrome is in review with Google, usually a few days.

Heads up: v1.9.4 has to request access to notebook.google.com, and browsers disable an

extension until you approve a new permission — so the icon disappears and it looks uninstalled.

It isn't. Open chrome://extensions (or about:addons), find NotebookLM Tools, click Enable →

Allow, then reload your NotebookLM tab.