As far as I know there is no difference in meaning .
Both mean to be extremely angry or enraged with someone.
'I am furious with/at you because of last night's debate."
2011年7月31日
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orally,better to use 'angry'.but hope you don't use it quite often.lol
2011年7月31日
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Jura is right. Both are the same, but we say furious with.