Maybe some friends are not familiar with Firefox and don’t know how to open QR codes. But it doesn’t matter. Below, the editor will share the operation process of opening QR codes in Firefox. Let’s take a look.

1. First open Firefox and open "Add-ons" in the menu in the upper right corner;

2. Open "Extensions" in the add-ons interface, and then click the "Options" function next to "Add-ons Manager" in the extension;

3. Select "Basic Functions" in the pop-up window and check "Enable address bar QR code".

4. After completing the above operations, a QR code icon will appear on the right side of the address bar of Firefox. Click it and a QR code will pop up. Then scan it with your mobile phone to browse the web on your mobile phone.

The above article explains the operation process of opening QR code in Firefox. I hope friends in need can learn it.