Install the Browser Extension

Firefox Installation

1. Click “Add to Firefox” above to visit the official CarbonGuru add-on page
2. Click “Add to Firefox” on the Mozilla Add-ons page
3. Firefox will prompt you to install — click “Add” to confirm
4. Look for the CarbonGuru icon in your browser toolbar. If you don’t see it, click the puzzle piece icon (Extensions) in the toolbar, find CarbonGuru in the list, and click the gear icon → “Pin to Toolbar”
5. Click the icon and sign in with your CarbonGuru account

Chrome Installation

1. Click “Add to Chrome” above to visit the official CarbonGuru extension page on the Chrome Web Store
2. Click “Add to Chrome” on the Chrome Web Store page
3. Chrome will prompt you to install — click “Add extension” to confirm
4. Pin the extension to your toolbar — Click the puzzle piece icon (Extensions) in the Chrome toolbar, find CarbonGuru in the list, and click the pin icon so it stays visible
5. Click the CarbonGuru icon and sign in with your account

Note: This extension also works with Microsoft Edge and Brave browsers. You can install it directly from the Chrome Web Store in those browsers.

Safari Installation (Beta)

1. Click “Download for Safari” above to download CarbonGuru-dev.app.zip
2. Unzip the file and move CarbonGuru.app to your Applications folder
3. Open the app — macOS blocks unsigned apps by default. Use one of these methods to bypass Gatekeeper:
   
   Option 1: Right-click (or Control-click) on CarbonGuru.app → Select “Open” → Click “Open” in the dialog
   Option 2: Go to System Settings → Privacy & Security → Click “Open Anyway” next to the blocked app message
   Option 3: Run in Terminal: xattr -cr /Applications/CarbonGuru.app then double-click to open
4. Confirm extension registration — The app will show a window confirming the extension is installed
5. Open Safari Settings → Extensions → Enable “CarbonGuru”
6. Show the icon in your toolbar — If the CarbonGuru icon doesn’t appear in the toolbar, right-click (or Control-click) the toolbar area and select “Customize Toolbar…”, then drag the CarbonGuru icon into the toolbar
7. Click the CarbonGuru icon in the toolbar and sign in

Note: Safari extension is in beta. See the full onboarding guide for detailed troubleshooting.