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GuardExt

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Overview

Detect and alert on malicious browser extensions

インストールされているブラウザ拡張機能をスキャンし、潜在的なセキュリティ リスクを可視化するプラグインです。 ◾️権限分析 危険または機微な権限(webRequestBlocking、debugger、cookies、clipboardRead など)や、広範なホストアクセスパターン(<all_urls>、*://*/*)を検出します。 ◾️インストール種別チェック Chrome Web Store 経由ではない、サイドロードやデベロッパーモードでインストールされた拡張機能を検出・警告します。 ◾️悪意あるIDブロックリスト照合 バンドルされた既知の悪意ある拡張機能IDリストと照合します。一致した場合は「BLOCKLISTED」バッジを表示し、該当理由も明示します。 ◾️リスクスコアリング 各拡張機能に対して総合スコアを算出し、「Safe」「Warning」「Danger」に分類します。 ◾️自動更新 拡張機能はスキャン時に最新のブロックリストを取得します A Chrome extension that scans your installed browser extensions and flags potential security risks. Features: ◾️Permission analysis — Detects dangerous and sensitive permissions (webRequestBlocking, debugger, cookies, clipboardRead, etc.) and broad host access patterns (<all_urls>, *://*/*). ◾️Install type checks — Flags sideloaded and developer-mode extensions that weren't installed from the Chrome Web Store. ◾️Malicious ID blocklist — Cross-references each extension against a bundled list of known malicious extension IDs. Matches are tagged with a BLOCKLISTED badge and the specific reason. ◾️Risk scoring — Each extension receives a composite score and is categorized as Safe, Warning, or Danger. ◾️Auto-updating blocklist — the extension can fetch the latest blocklist at scan time with a local fallback.

Details

  • Version
    1.0.1
  • Updated
    February 4, 2026
  • Offered by
    balaenatech
  • Size
    14.97KiB
  • Languages
    English (United States)
  • Developer
    BalaenaTech Co., Ltd.
    Email
    contact@balaenatech.com
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.

Privacy

The developer has disclosed that it will not collect or use your data.

This developer declares that your data is

  • Not being sold to third parties, outside of the approved use cases
  • Not being used or transferred for purposes that are unrelated to the item's core functionality
  • Not being used or transferred to determine creditworthiness or for lending purposes

Support

For help with questions, suggestions, or problems, please open this page on your desktop browser

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