Firefox spell check problem on macOS

[jericson (Jon Ericson)]

@barryscott

When I am editing a post, like this one, spell checking is not working when I use Firefox on macOS.

Is it just this site or do you have the same problem with other sites on the internet? I’m trying to get an idea of this is a Discourse problem or a Firefox on macOS problem. Spell check is working for me using that combination: sadfasga