ExtensionGuard
Your extensions have more access than you think.
What is ExtensionGuard?
Browser extensions run with deep access to your data. They can read every page you visit, modify content, and send data to remote servers. Some get sold to new owners who inject ads or malware. Others get abandoned and never patched.
ExtensionGuard audits every extension installed in your browser. It analyzes permissions, tracks update frequency, detects ownership changes, and checks against known compromise databases. Each extension gets a composite risk score so you can make informed decisions about what stays and what goes.
Features
- Permission risk analysis - Evaluates the permissions each extension requests and flags overprivileged ones.
- Abandoned extension detection - Identifies extensions that have not been updated in months or years.
- Ownership change alerts - Detects when an extension changes hands, a common precursor to supply chain attacks.
- Network traffic analysis per extension - Monitors which domains each extension communicates with.
- Known compromise database check - Cross-references your extensions against databases of known malicious or compromised extensions.
- Composite risk score per extension - Combines all signals into a single score so you can prioritize action.
Who is it for?
Built for anyone with browser extensions installed. General users get a clear picture of what their extensions actually do. IT admins and security teams get visibility across managed browsers.
- Anonymized crowdsourced intelligence (opt-in)
- You can opt out, but crowdsourced features will be disabled
- Read the privacy policy