Welcome to Thunderbird Add-ons.
Add extra features and styles to make Thunderbird your own.
Titz'apïx
Arabic spell-checking dictionary 3.2.20120321.1webext
ruma Dan Kenigsberg
Arabic spell-checking dictionary for Firefox 3 and Thunderbird 3 from Ayaspell.
Chi rij re Tz'aqat re'
Much quicker and lighter than the previos (Buckwalter-based) version.