how to scan QR codes

Hello, First, Firefox does not have a built in QR code scanner, however on mobile QR code scanning is a feature. If using firefox on android, tap the search/address bar, then above the keyboard tap the scan icon, then grant camera permissions, then scan the QR code, then tap allow. If on a desktop environment (windows, mac, linux) installing an extension is required. You can install the addon [https://addons.mozilla.org/en-US/firefox/addon/qr-code-scanner-generator/ QR code scanner/generator] and use your computer's camera to scan QR codes.