Grammalecte [fr] (for Thunderbird) 2.1.1
by OR
French grammar checker. Included: conjugation tool, text formatter and spelling dictionaries.
About this Add-on
It also includes:
— 4 spellchecker dictionaries (to choose from),
— a conjugation tool (which contains approximately 8000 verbs),
— a text formatter (to automatically correct most of typographical mistakes).
— a lexicon editor for your personal dictionary.
Unlike other grammar checkers, Grammalecte is written in full JavaScript, doesn’t require a server and can work offline. No data is sent online.
Grammalecte also exists for Firefox, LibreOffice and OpenOffice.
No support in the comments.
WARNING:
If you write answers before the quote, you must change the settings of each account in the panel [Composition and addressing] :
For [Composition], select [start my reply above the quote].
If you don’t change the option, the grammar checker won’t check the texte written before the quote.
In general options of Thunderbird, go to tab [Composition], section [HTML] and select option [Use Paragraph format instead of Body Text default].