| proxy | Permission | | This permission allows the extension to control the browser's proxy settings. Rated Critical because it can route all traffic through potentially malicious proxies, enabling man-in-the-middle attacks and traffic monitoring. |
| webRequest | Permission | | 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. |
| webRequestBlocking | Permission | | 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. |
| <all_urls> | Host | | Broad host access — the extension can read/modify content on every website. |
| file:///* | Risk Factor | | This permission grants access to all websites without restriction. Rated High because it can access any web content, monitor all web activity, and potentially steal sensitive data across all sites. |
| Dangerous Permission Combination: proxy,webRequestBlocking,webRequest | Risk Factor | | Complete control over network traffic and routing |
| Dangerous Permission Combination: proxy,webRequestBlocking,cookies | Risk Factor | | Allows extensions to intercept web requests, manage cookies, and access identity or certificate-related functionalities, potentially compromising secure access and authentication processes. |
| Dangerous Permission Combination | Risk Factor | | This extension can intercept, modify, and block web requests in real-time. |
| sessions | Permission | | This permission accesses recently closed tabs and windows. Rated High because it can monitor user activity, recover closed sensitive pages, and track browsing patterns. |
| cookies | Permission | | 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. |
| browsingData | Permission | | This permission clears browsing data, history, and redis. Rated High because it can destroy evidence of malicious activity, clear security logs, and modify browser state. |
| webNavigation | Permission | | 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. |
| nativeMessaging | Permission | | This permission enables communication with applications installed on your computer. Rated High because it can exchange data with native programs, potentially exposing system-level information and local files. |
| downloads | Permission | | This permission controls file downloads and accesses download history. Rated High because it can download malicious files, access sensitive downloaded documents, and track user download patterns. |
| clipboardWrite | Permission | | This permission allows modification of clipboard content. Rated High because it can inject malicious content into the clipboard, modify copied passwords, and manipulate copied data. |
| clipboardRead | Permission | | This permission allows reading clipboard content. Rated High because it can steal copied passwords, sensitive data, and monitor all content copied to clipboard. |
| Dangerous Permission Combination: webRequest,cookies,sessions | Risk Factor | | Enables extensions to maintain long-term presence, manage data extensively, and potentially access sensitive browsing sessions and cookies. |
| Contextual Risk Factors | Risk Factor | | The following context increases the overall risk:• 10% increase: Early script execution enables pre-emptive content manipulation• 15% increase: Older manifest version lacks modern security controls• 10% increase: About:blank access enables potential sandbox escape vectors |
| Broad Host Permissions | Risk Factor | | This extension has broad host permissions allowing it to access many or all websites. |
| Broad Content Script Access | Risk Factor | | This extension can inject scripts into any website. |
| tabs | Permission | | This permission enables tab management and monitoring. Rated Medium because it can track open tabs, access tab metadata, and monitor user browsing patterns. |
| management | Permission | | This permission manages other installed extensions. Rated Medium because it can enable/disable other extensions and modify their settings, with changes being visible to users. |
| Early Content Script Execution | Risk Factor | | This extension runs content scripts at document_start. |
| About:blank Access | Risk Factor | | This extension can run content scripts in about:blank pages. |
| Older Manifest Version | Risk Factor | | This extension uses Manifest Version 2 |
| bookmarks | Permission | | 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. |
| notifications | Permission | | This permission displays system notifications. Rated Low because it can only show user-visible notifications without accessing system data. |
| contextMenus | Permission | | This permission adds items to browser context menus. Rated Medium because it only modifies right-click menus without access to page content. |
| menus | Permission | | This permission (Firefox) adds items to browser context menus. Rated Low because it only modifies right-click menus without access to page content. |
Firefox Add-ons