Readwise 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:• 20% increase: Access to sensitive domains increases potential impact• 10% increase: Early script execution enables pre-emptive content manipulation

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.

Host permission — access limited to this URL pattern.

This extension requests access to sensitive domains: *://read.amazon.com/*, *://*.readwise.io/*, *://*.readwise.io/twitter_start*

This extension runs content scripts at document_start.

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

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

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