Show a Squirrel icon on pages that have an sQRl login image.
SQRL Will be the next way to log into your favorite website. Eventually this extension will be developed to the point where you can log in from your browser. Meanwhile it will only display a Squirrel icon when your page has an SQRL image displayed in it.
I would also like to propose that SQRL image tags contain the attribute data-sqrl with the url that is in the QR code. Ex:
<img src="/img/sqrl.png" data-sqrl="http://mydomain.com/sqrl?a9s8dfuas9dfa]SdfaSDFasdfASDfaSDFA" alt="SQRL code" />