Interesting... I use Firefox as my primary Android browser for various reasons but I&#x27;ve never seen this.  Just checked and still don&#x27;t see the box icon when I tap the URL bar.<p>This interested me so I checked the Firefox support site and supposedly it&#x27;s an option under &quot;settings-&gt;display&quot; but I still don&#x27;t see it.  (<a href="https:&#x2F;&#x2F;support.mozilla.org&#x2F;si&#x2F;kb&#x2F;scan-qr-codes-firefox-android#w_how-to-enable-or-disable-the-qr-code-reader" rel="nofollow">https:&#x2F;&#x2F;support.mozilla.org&#x2F;si&#x2F;kb&#x2F;scan-qr-codes-firefox-andr...</a>)<p>Checked the Firefox support site and apparently you need to install a separate app to enable this (<a href="https:&#x2F;&#x2F;support.mozilla.org&#x2F;en-US&#x2F;kb&#x2F;scan-qr-codes-firefox-android" rel="nofollow">https:&#x2F;&#x2F;support.mozilla.org&#x2F;en-US&#x2F;kb&#x2F;scan-qr-codes-firefox-a...</a>)<p>After installing the app (<a href="https:&#x2F;&#x2F;play.google.com&#x2F;store&#x2F;apps&#x2F;details?id=com.google.zxing.client.android" rel="nofollow">https:&#x2F;&#x2F;play.google.com&#x2F;store&#x2F;apps&#x2F;details?id=com.google.zxi...</a>) I do indeed have the option and the box.