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Lightning download for Thunderbird 52.9.1 corrupt and won't install

Tom McCaffery
Tom McCaffery
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I recently upgraded to Thunderbird 52.9.1. Upon re-start the Lightning Calendar was no longer present. I went through the usual AddOn process and attempted to download the latest version of Lightning, several times. Each time I received a message that the addon could not be installed because it appeared to be corrupt. How do I get a good version so I can get my calendar back?

I recently upgraded to Thunderbird 52.9.1. Upon re-start the Lightning Calendar was no longer present. I went through the usual AddOn process and attempted to download the latest version of Lightning, several times. Each time I received a message that the addon could not be installed because it appeared to be corrupt. How do I get a good version so I can get my calendar back?

Solution choisie

https://support.mozilla.org/en-US/questions/1226335#answer-1134855

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sfhowes
sfhowes
  • Top 10 Contributor
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Solution choisie

https://support.mozilla.org/en-US/questions/1226335#answer-1134855

Tom McCaffery
Tom McCaffery Auteur de la question
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Thanks for your help -- worked as advertised and easy to do.