Review for English (Australian) Dictionary by Dan
Rated 5 out of 5 stars
This plugin delivers exactly what it promises: a functional spell-check dictionary for Firefox. Works just fine with FF 12.0.
As an aside, I've found that this dictionary is quite a bit better for us Canadians who are used to the older Commonwealth spellings - so if you're a Canuck looking for a spell-checker that isn't rife with Americanisms, look no further.
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