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 — iOS (iPhone & iPad)

1. Click “Get on App Store (iOS)” above, or search for “CarbonGuru” in the App Store on your iPhone or iPad
2. Tap “Get” to download and install the app
3. Enable the extension — Open Settings → Safari → Extensions, find CarbonGuru, and toggle it on. Grant permission for “All Websites” when prompted
4. Tap the extension icon in Safari’s address bar (you may need to tap the puzzle piece icon first) and sign in with your CarbonGuru account

Safari — macOS

1. Click “Download for macOS Safari” above to download CarbonGuru.app.zip
2. Unzip the file and move CarbonGuru.app to your Applications folder
3. Open the app — macOS may block 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: The macOS version is pending App Store review. In the meantime, use the direct download above. See the full onboarding guide for detailed troubleshooting.

Android (PWA)

1. Click “Install PWA” above or visit carbonguru.io/app in Chrome on your Android device
2. Sign in with your CarbonGuru account
3. Install the app — Chrome will show an “Install app” banner at the bottom of the screen, or tap the three-dot menu → “Install app” (or “Add to Home screen”)
4. Open CarbonGuru from your home screen — it runs as a standalone app
5. Share product pages — On any shopping site, tap the Share button and select CarbonGuru to analyze the product’s carbon footprint

Note: The Android PWA works with Chrome, Edge, and Samsung Internet. You can also use the bookmarklet to analyze pages directly from any mobile browser — visit your CarbonGuru dashboard for setup instructions.