This extension uses ZXing online QR decoding service to provide you with a convenient tool for reading any QR code you meet on a web page.
Once you install it, just right-click an image with a QR code on any web page and choose "Decode QR code".
QR Decoder also automatically captures web URLs and e-mails and makes them "clickable".
The extension is available in English and Russian localizations.
I am not related to ZXing project nor to its developers. My extension only uses its web decoding service. You can learn more about the ZXing project here: http://code.google.com/p/zxing/