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Lightning is not included or installable in Thunderbird 54

elflng replied
elflng

As of the update yesterday, Lightning disappeared from Thunderbird. I am on the beta update channel. Further, trying to manually install it fails with an unsupported version message.

As of the update yesterday, Lightning disappeared from Thunderbird. I am on the beta update channel. Further, trying to manually install it fails with an unsupported version message.

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Still getting 'Lightning could not be installed because it is not compatible with Thunderbird 54.0.' Addons -> Gear -> Install add-on from file -> lightning-5.6a2.en-US.win32.xpi

Thank you very much, that worked!