Extension Auditor - Security & Privacy Analyzer

🌟 After watching MegaLag's Video about the PayPal Honey browser extension, I had a wake-up call. And as it turns out, this is exactly the motivation I needed to create something that solves this and empowers everyday users to take back control of their data privacy. 💡 It was eye-opening—and infuriating. As someone who cares about 🛡️ user privacy and security, I couldn’t ignore the risks that browser extensions like Honey can pose. 🚀 So, I built... Introducing: Extension Auditor 🛠️ Extension Auditor is a browser extension that helps users understand and evaluate the security implications of their installed browser extensions. It provides real-time security analysis and risk assessment of extensions based on their permissions, capabilities, and potential security impacts. 🔑 Features 🔍 Real-time Security Analysis: Instantly analyzes installed extensions for security considerations. ⚠️ Risk Classification: Categorizes findings into Critical, High, Medium, and Low severity levels. 🛡️ Permission Analysis: Detailed explanation of each extension’s permissions and their security implications. 🌐 Host Access Analysis: Identifies extensions with broad host permissions or access to sensitive domains. 📊 Comprehensive Report: Generates detailed security reports with specific findings and potential risks. 🕵️ Privacy Focus: Runs locally in your browser with minimal required permissions. 👥 Who can benefit 🌐 Everyday Internet Users: Stay informed and secure. 🎥 Content Creators: Vet extensions before promoting them to your audience. 🔒 Cybersecurity Professionals: A great starting point for pentesting browser extensions to guide deeper dynamic and runtime analysis. 🔍 Privacy Professionals: Discern privacy concerns of using an extension and compare advertised privacy practices vs. actual use. 🛠️ How it works Extension Auditor analyzes extensions based on several factors: 🔑 Permission Analysis: Evaluates the permissions requested by extensions and their potential security implications. 🌐 Host Access: Identifies broad host permissions that could pose privacy risks. 💻 Content Script Analysis: Examines how extensions interact with web pages. 📜 Manifest Analysis: Reviews extension manifest settings for security best practices. 📈 Combined Risk Assessment: Calculates overall risk based on multiple security factors. 🔒 Risk Rating Methodology 🚨 Critical: Highly sensitive permissions or combinations that could be dangerous if misused. ⚠️ High: Permissions that could potentially be used maliciously. ⚡ Medium: Permissions that require caution as they provide significant capabilities. ✅ Low: Permissions with limited potential for misuse. 🛡️ Privacy Extension Auditor requires only two permissions: management: To access information about installed extensions. tabs: To display the analysis interface. 💡 The extension runs entirely in your browser and: ❌ Does not collect any personal data. ❌ Does not send data to external servers. ❌ Does not modify any other extensions. ❌ Does not modify webpage content. 🔑 Permissions Explained A permission is either one of a list of known strings, such as activeTab, or a match pattern giving access to one or more hosts. Remove any permission that is not needed to fulfill the single purpose of your extension. ⚙️ The management permission is essential for this extension because it allows us to: 📋 List and access information about installed extensions using chrome.management.getAll(). 📖 Get detailed extension information using chrome.management.get(extensionId). 🔄 Monitor extension lifecycle events through listeners. We use this permission to: 📜 Get manifest details. 🔑 Check permissions. 📂 Monitor content scripts. 🛡️ Analyze security settings. 🔄 Track extension states (enabled/disabled). 🌐 Get host permissions. ⚙️ Access CSP (Content Security Policy) settings. Without the management permission, it would be impossible to perform security analysis—making this the core permission that enables the extension’s main functionality. 🌍 Let’s make browsing safer—for all of us. 🌟