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lightning will not install.thunderbird will not open package

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bootsh
bootsh
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Follow instructions to install Lightning.Reach the press install which I did, page clears .Open thunderbird and a Red line at top says Lightning cannot install Thunderbird not opening package

Follow instructions to install Lightning.Reach the press install which I did, page clears .Open thunderbird and a Red line at top says Lightning cannot install Thunderbird not opening package

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Matt
Matt
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that sounds like an anti virus program getting in the way.