This is the offline QR generator add-on for firefox.
It's made using jetpack SDK, so it doesn't require browser restart on install/uninstall
Credits:
- QR code generator by Kazuhiko Arase
- rendering qr code generated from above on html5 canvas by Amanuel Tewolde
- JS based utf8 encoding from http://www.webtoolkit.info/javascript-utf8.html
- toolbar icon: http://www.iconfinder.com/icondetails/25689/16/barcode_2d_icon
- Local file save javascript from https://github.com/eligrey/FileSaver.js
AMO listing page: https://addons.mozilla.org/en-US/firefox/addon/offline-qr-generator/