One of the upsides of Firefox is that it has a built-in spell-checker, so when you type up a post on a message board (or in WordPress!), you get the same red squiggly line under misspelled words like you do in Microsoft Word.
One of the downsides of Firefox is that the spell-checker is… quirky:
Yep, it’s telling me that “brain” is misspelled, and offers no suggestions on how to spell it “correctly”.