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Extension Security Checker scans Chrome extensions locally for risky permissions, all-site access, and suspicious changes. Extension Security Checker helps Chrome users understand the security signals behind their installed browser extensions. Many extensions request permissions such as tabs, cookies, history, webRequest, scripting, or all-site access. These permissions can be legitimate, but they may also expose sensitive browser activity when used by untrusted or over-permissioned extensions. This extension scans installed Chrome extensions locally, explains technical permissions in plain language, highlights sensitive access, and shows which extensions may deserve closer review. Core features: - Scan installed Chrome extensions locally - Explain extension permissions in plain language - Highlight sensitive permissions and all-site access - Identify unusual install sources - Compare with the previous local scan to show permission or extension changes - Export a local JSON report - Support English, Chinese, Japanese, and French Important note: Extension Security Checker is not antivirus software and does not claim that an extension is safe or malicious. It provides permission risk explanations and review signals to help users make informed decisions.
Jun 18, 2026
rating_count is the Chrome Web Store ratings count, not a written-review count.
Media assets
Screenshots and videos on the listing.
Has promo video
Whether the listing includes at least one video.
Languages
Declared language locales.
Developer website
Listing exposes a developer website URL.
Contact email
Listing exposes a contact email.
Keyword in name
Case-insensitive substring match in the name.
Keyword in description
Case-insensitive substring match in the description.
Keyword occurrences in description
Count of case-insensitive occurrences in the description.
Category user-count percentile
Share of same-category extensions with fewer users (null if unknown).
These are transparent listing completeness / keyword signals, not a prediction of Chrome Web Store search ranking.