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Thunderbird couldn't load XPCOM?? why? what next?

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hi all, could ope thunderbird. Thunderbird "Couldn't load XPCOM". was displayed. Why? and what do I do next to fix it? thank you.

hi all, could ope thunderbird. Thunderbird "Couldn't load XPCOM". was displayed. Why? and what do I do next to fix it? thank you.

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Have you tried reinstalling from getthunderbird.com

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Have you tried reinstalling from getthunderbird.com