Rated 1 out of 5 stars

What a brilliant add-on idea - I've been tolerating the red lines up til now (the end result being that they got ignored since I can't tell if it's a real mistake or just a US/GB difference) so finding this was fab.
But - and it's a big but - it simply does not work. Or, at least, it doesn't work where I need it to work. I most frequently use Gmail (yes, I've changed the language setting there to UK and also the language setting on the browser options here on FF), Livejournal and the BBC website. All three still bring up colour as spelt wrong. In fact, colour and spelt are both red-underlined at this very moment.

So, sorry, but: FAIL.

This review is for a previous version of the add-on (1.19).