G-CAL Highlighter Firefox extension security report

The following context increases the overall risk:• 20% increase: Access to sensitive domains increases potential impact• 10% increase: Early script execution enables pre-emptive content manipulation• 15% increase: Older manifest version lacks modern security controls

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 enables tab management and monitoring. Rated Medium because it can track open tabs, access tab metadata, and monitor user browsing patterns.

Host permission — access limited to this URL pattern.

This extension requests access to sensitive domains: *://*.google.com/*, http://*.google.com/calendar/*, https://*.google.com/calendar/*

This extension runs content scripts at document_start.

This extension uses Manifest Version 2

This permission adds items to browser context menus. Rated Medium because it only modifies right-click menus without access to page content.

This permission schedules periodic tasks. Rated Low because it can only trigger events at specified times without access to sensitive data.