Czech spell checking dictionary is an add-on for all Mozilla applications. It includes both standard and ASCII version.
The standard version is based on the OpenOffice.org dictionary that is based on the Ispell dictionary created by Petr Kolář. The ascii version was created from the standard one using a perl script by Jindřich Makovička.
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".
· Mozilla Thunderbird