Gemini Notebook Companion Chrome extension security report

This permission combines network request modification with host permissions. Rated Critical because it can modify requests for specific domains, potentially targeting sensitive websites with precise attack rules.

This permission allows injection and execution of JavaScript on any webpage. Rated Critical because it can modify page content, steal sensitive data, and inject malicious code into any site the extension has access to.

This permission enables monitoring of all browser navigation events and transitions. Rated High because it can track every page visit, navigation method, and browsing pattern, potentially exposing sensitive browsing behavior and user activities.

The following context increases the overall risk: • 19% increase: Access to sensitive domains increases potential impact

This permission allows storing data locally in the browser. Rated Medium because it can persist sensitive user data, track user activities over time, and potentially store malicious payloads.

This permission grants temporary access to the current tab. Rated Medium because it can access current page content when invoked, though limited to user-initiated actions.

Host permission — access limited to this URL pattern.

Host permission — access limited to this URL pattern.

This extension requests access to sensitive domains: https://notebooklm.google.com/*, https://notebook.google.com/*

This permission adds custom panels to the browser interface. Rated Low because it only affects browser UI elements and cannot access page content.