I’ve modified the *excellent* SpoofStick extension for Firefox to now find and label any homographs detected in the current URL. This should hopefully be a help until the Mozilla folks fix IDN support.
Test the extension by visting the Shmoo IDN exploit page and click on the fake Paypal links.
I plan on forwarding my code changes to the SpoofStick developers – they’re free to use my code as they see fit.
Update: I’ve been Boing Boing‘d! (hi, everyone)
Update: note that the extension’s appearance has not changed from the original version. Please direct any requests for look and feel changes to the original developers.
Update: Yes, I know it’s very “English-centric”.
Big update: The official version of SpoofStick now supports IDN checks. I recommend that everyone uninstall my hack and install the official version.