Doesn't work. Switched to cybrkyd's pack and it works instantly. I admire Mozilla for challenging the Chrome hegemony, and always stick with Firefox despite it's many, many flaws, but damn is it hard to love them sometimes. Constant own goals and strange blunders.

Anyway, use cybrkyd's pack.

Extensif et précis, ce module est un parfait dictionnaire

it says "an unexpected error occurred"

Can't make this work, no matter how hard I tried for months.

Some modern words like playtest can be missing!

Why doesn't this work? I have made repeated attempts over recent years to get this language pack to work, but still everything I type is checked for American English. It's so frustrating! It can't even spell centre in this review.