Open Multiple URLs Firefox extension security report

This permission provides full access to read and modify browser cookies. Rated High because it can steal session tokens, modify authentication cookies, and compromise accounts across websites.

The following context increases the overall risk:• 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 (Firefox) manages container tabs. Rated Medium because it can create, remove and inspect the identity containers that isolate a user's sessions from each other.

This extension uses Manifest Version 2

This permission accesses search functionality. Rated Low because it only interacts with the browser's search feature without accessing search history.