Awesome

This add-on is currently unmaintained! Please do not use it, anymore! You can find a replacement of this add-on for up-to-date Firefox versions here: https://github.com/rugk/offline-qr-code

Or directly on AMO: https://addons.mozilla.org/firefox/addon/offline-qr-code-generator/

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
• 16x16px icon: http://www.iconfinder.com/icondetails/25689/16/barcode_2d_icon (author page: http://pinvoke.com/)
• 32x32px icon: https://www.iconfinder.com/icons/174693/code_qr_icon#size=32 (author page: http://icons8.com/)
• Local file save javascript from https://github.com/eligrey/FileSaver.js
• Font Awesome by Dave Gandy - http://fortawesome.github.com/Font-Awesome
• Copied some styles from Twitter's Bootstrap project :) - http://twitter.github.io/bootstrap/
• Special thanks to Nghia Hoang for providing mockups for a UI far better than the developer one I came up with :)

AMO listing page: https://addons.mozilla.org/en-US/firefox/addon/OfflineQR/