This dictionary sucks. Where are all the words?!? Here's one example of MANY: unintuitive Yep, there's a red underline under that right now. Disappointing. I've filed a bug report https://bugzilla.mozilla.org/show_bug.cgi?id=1637693
Well, this add-on is distributing the *official* English US dictionary that ships with Mozilla Firefox. If you're missing words, file a bug at https://bugzilla.mozilla.org/. Yes, "unintuitive" is sadly missing in that dictionary.
