Javascript error when changing network

I get many javascript errors on firefox 3.6.8 Torbutton Exception in sandbox evaluation. Dae hooks not applied: [Exception... "Illegal value"nsresult: "0x80070057 (NS_ERROR_ILLEGAL_VALUE)" Location: "JS frame :: chrome://torbutton/content/torbutton.js::anonymous::line 3773" data:no] i get that about 4 to 7 times when opening every new window

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Username: uBronan