Be careful with old versions!
These versions are displayed for reference and testing purposes. You should always use the latest version of an add-on.
When the toolbar button is clicked, a new tab will open with the mobile code image, so you can save the file or use it in other ways.
Added Japanese and German localisations.
Fixed a bug with Unicode text/URLs not being encoded properly.
I hope this update resolves pretty much all of the suggestions/issues people had until now. Keep the comments coming, I'll try and include any good feature suggestion.