I am still having trouble with the "Find a Username selection" where it says "Sorry, but that user does not exist." I only have the mod eXtreme Styles and the IM Portal. I don't know if these conflict with this Firefox Fix.
If so, how can I fix the problem? The mod seems to somehow change the "Find a Username" function to do the exact same thing as the "Look Up User" button because when I enter the exact user name, it works, when I enter a non-existant username, they both give me the same "Sorry, but that user does not exist." error. Maybe something got rerouted. Hope that helps.
Everything else in editing a member's info works.