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Some digging is necessary to get a hold of this gold nugget. If you don’t know the specific URL to your iCloud calendar you can’t add it to Thunderbird.
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Therefore you need to create an app-specific password for Thunderbird. Of course, this is not feasible if Thunderbird authenticates itself against iCloud on your behalf. If you log into iCloud Apple requires username/password plus a verification code they send to your mobile. You need to deal with two-factor authentication (2FA).However, with an iCloud calendar it’s more complicated than usual for two reasons: Unfortunately, this is more complicated than it could and should be but I guess Apple really wants you to use their apps exclusively.Ĭonnect an iCloud calendar to ThunderbirdĪdding any remote calendar to Thunderbird is trivial. just what you’d expect: full integration, editable calendar with two-way synchronisation. It’s a pity that Apple only documented this one. I’ll mention it at the very end of this article for the sake of completeness.
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The lame one: a read-only view of any iCloud calendar.There are two general approaches how to add an iCloud calendar to Thunderbird How to setup a Thunderbird iCloud calendar sync connect TB to iCloud Thunderbird iCloud calendar sync
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