Yahoo Toolbar and New Tab Firefox extension security report

This permission enables the extension to monitor and analyze all web requests made by the browser. Rated Critical because it can observe all network traffic including sensitive data, track browsing behavior, and gather authentication tokens.

This permission allows the extension to intercept, modify, or block any web request in real-time before it reaches its destination. Rated Critical because it can modify sensitive data (like passwords, credit cards) before encryption, redirect traffic to malicious sites, or block security updates.

This extension can intercept, modify, and block web requests in real-time.

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 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:• 20% increase: Access to sensitive domains increases potential impact• 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: *://*.yahoo.com/, *://*.yahoo.com/*

This extension uses Manifest Version 2

This permission manages browser bookmarks and folders. Rated Low because it can only modify bookmark data, which is not sensitive and changes are visible to users.