New Tab Tools Firefox extension security report

Broad host access — the extension can read/modify content on every website.

This permission accesses recently closed tabs and windows. Rated High because it can monitor user activity, recover closed sensitive pages, and track browsing patterns.

This permission accesses the list of most visited websites. Rated High because it can reveal browsing patterns, identify frequently accessed service, and gather user behavior data.

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:• 15% increase: Older manifest version lacks modern security controls

This extension has broad host permissions allowing it to access many or all websites.

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 detects system idle state. Rated Low because it only observes user activity state without access to activity details.

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