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

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 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.

This extension uses Manifest Version 2

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

This permission (Firefox) lets the extension replace the context menu shown for its own content. Rated Low because it only affects menu presentation.

This permission displays system notifications. Rated Low because it can only show user-visible notifications without accessing system data.