A fix for the dictionaries for Firefox browser.

[boingo]

Frustratingly both the British English & Australian English dictionary plug-ins for Firefox browser are actually just the American English dictionary renamed. I found a way to edit the word list on some dude's web page.
http://perishablepress.com/press/2008/04/13/how-to-edit-the-firefox-custom-dictionary/
This is going to be helpful for those times when I accidentally add a word when I meant to press the button to change the word instead.