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i have installed firefox 3.6 after this i cannot make speed dials to work as soon as i insall the addon i get the following error message " [Exception... "Component returned failure code: 0x8000ffff (NS_ERROR_UNEXPECTED) .Please advice

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[Exception... "Component returned failure code: 0x8000ffff (NS_ERROR_UNEXPECTED) [nsIPrefBranch.getIntPref]" nsresult: "0x8000ffff (NS_ERROR_UNEXPECTED)" location: "JS frame :: chrome://speeddial/content/speeddial.js :: generateTabCells :: line 444" data: no]

[Exception... "Component returned failure code: 0x8000ffff (NS_ERROR_UNEXPECTED) [nsIPrefBranch.getIntPref]" nsresult: "0x8000ffff (NS_ERROR_UNEXPECTED)" location: "JS frame :: chrome://speeddial/content/speeddial.js :: generateTabCells :: line 444" data: no]

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