yangben dictionary is a Thunderbird, Firefox and SeaMonkey extension that implements a spell checker for the Yangben language.
yangben dictionary is an open source add-on designed to work with Mozilla Firefox 2.0 Alpha 1 or later, Mozilla Thunderbird 1.0 or later, SeaMonkey 2.17 Alpha 1 or later, Firefox Mobile 2.0 Alpha 1 or later and Firefox for Android 10.0 Alpha 1 - 20.0 Alpha 1.
How to Install in Thunderbird:
1. Right-click the link below and choose "Save Link As..." to download and save the file to your hard disk.
2. In Mozilla Thunderbird, open Add-ons from the Tools menu.
3. Click the Install button, and locate/select the file you downloaded and click "OK".