I wanted to be able to scan QR codes on paper, as I can with a smartphone. This works fine, if you set it to "Auto start". Would be nice if it opened the URL automatially if it detects one.

Cannot scan code on website.

Works well and doesn't hog on resources.

Took a while to find an add-on with barcode support, not just QR. And no need to install an external program or give permissions to read all my data. Perfect! Thanks a lot for this add-on.

It's unable to scan images inside the current tab