You have to *download* the file, the in Thunderbird, to to Add-ons > Install... and choose the file. Yes, it's confusing, there are bugs open about improving it. http://www.mozilla.com/en-US/thunderbird/dictionaries.html is only for old-style dictionaries which won't work in tb2. I'd recommend updating to thunderbird2 and downloading the dictionary from addons.mozilla.org ->INVALID
Status: UNCONFIRMED → RESOLVED
Last Resolved: 12 years ago
Resolution: --- → INVALID
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