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Supported Browsers

ChainGuard is available on all Chromium-based browsers:
  • Google Chrome: 88+. ✅ Fully supported.
  • Brave: 1.20+. ✅ Fully supported.
  • Microsoft Edge: 88+. ✅ Fully supported.
  • Opera: 74+. ✅ Fully supported.
  • Firefox: Not yet supported. 🔜 Coming soon.

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Chrome Installation

1

Open Chrome Web Store

Navigate to the ChainGuard extension page:
https://chrome.google.com/webstore/detail/chainguard
2

Add to Chrome

Click the Add to Chrome button in the top right corner.
3

Confirm Permissions

Review the requested permissions and click Add extension.ChainGuard requires:
  • Read and change your data on all websites — Required for URL scanning
  • Display notifications — For security alerts
4

Pin Extension

Click the puzzle icon (🧩) in the toolbar, then click the pin icon next to ChainGuard.

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Brave Installation

Brave users can install directly from Chrome Web Store: 
# Brave supports Chrome extensions natively
# Navigate to:
chrome://extensions/

# Enable "Allow extensions from other stores" if prompted
Brave Shields and ChainGuard work together. ChainGuard adds Web3-specific protection that Brave Shields does not cover.

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Edge Installation

1

Enable Chrome Extensions

In Edge, navigate to:
edge://extensions/
Enable Allow extensions from other stores in the left sidebar.
2

Install from Chrome Web Store

Visit the Chrome Web Store link and click Add to Chrome.

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Opera Installation

Opera supports Chrome extensions through the Install Chrome Extensions add-on:
1

Install Chrome Extension Support

Visit the Opera Add-ons page and install Install Chrome Extensions.
2

Add ChainGuard

Navigate to Chrome Web Store and install ChainGuard normally.

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Permissions Explained

ChainGuard requests minimal permissions for maximum security:
  • activeTab: Scan the current page URL. Data accessed: URL only, no content.
  • storage: Save user preferences. Data accessed: Local config only.
  • notifications: Send security alerts. Data accessed: None.
  • webRequest: Intercept suspicious requests. Data accessed: URL patterns only.
ChainGuard never accesses your private keys, seed phrases, or wallet contents. We only analyze public blockchain data and URL patterns.

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Verification

After installation, verify ChainGuard is working:
  1. Click the ChainGuard icon in your toolbar
  2. You should see the dashboard with current page analysis
  3. Navigate to https://app.uniswap.org — should show green (safe)
  4. The extension icon should display a checkmark

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Troubleshooting

  • Icon not visible: Click the puzzle icon and pin ChainGuard.
  • Extension disabled: Go to chrome://extensions/ and enable it.
  • Not scanning pages: Refresh the page or reinstall the extension.
  • Conflicts with other extensions: Disable other security extensions temporarily.

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Updating

ChainGuard updates automatically through your browser’s extension system. To manually check for updates: 
# Chrome
chrome://extensions/
# Click "Update" or enable Developer Mode and click "Update"

# Edge
edge://extensions/
# Same process
Major updates may require re-granting permissions. You’ll see a notification when this happens.

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Uninstallation

To remove ChainGuard:
  1. Right-click the ChainGuard icon
  2. Select Remove from Chrome (or your browser)
  3. Confirm removal
All local preferences are deleted. No data is retained on our servers.