Rated 5 out of 5 stars

It works and does the job pretty well.

It's not the Oxford Full British English; but you would be a fool to expect that for nothing.

Works in Thunderbird e-mail just fine.

Within generalised British spelling, they have accepted 's' or 'z' as a general spelling, it's common in Canada and Australia.

At least we don't have the American slang spellings to contend with.

Colour has a 'U' in it.

The Queen said so.

This review is for a previous version of the add-on (1.19.1.1-typefix).