Calendar support on Thunderbird mobile

[SamBouwer]

It would be great if Thunderbird mobile supports calendars like the desktop applications supports calendars. 

[carmonatierno]

Perhaps it is a crazy idea, but why not bringing back the old Sunbird as a calendar app for mobile devices?

[Adinan]

Mely

[mgoekint]

It would be nice to have an agenda on Thunderbird for Android

[Jon]

(Note: similar ideas have been merged into this thread)

[KenStacks]

Such a great idea, I'm trying to de-google my life and I think that would be good

[bluefish]

Having calendar would be awesome. More than that, I'd say it is necessary.

[wsm]

Update - in the mobile plan for 2026, not yet released, we plan to do some exploration of this idea.  So there may not be code released, but there will be an evaluation.

[usbee]

It would be nice if it would be a separate app rather than part of Thunderbird Mobile. Even better, Lightning name could have a return in this form as Thunderbird Lightning as a dedicated mobile calendar app.

[Valkyr]

Same, would really use an integration of the desktop calendar, it would allow to fully replace outlook in that regard

[Yoseph]

I got sick of using outlook on my mobile especially after the ADD been added. though, I switched to my favorite thunderbird as I am a long time user on Desktops. I was realy surprised that there is no Calender. I am glad to see many request here, and hope to see one if not better than outlook then at least equivalent. 

Thanks team, your work has been appreciated for years!

Yousef

[esmm]

a huge win if it can be shipped. I need it too!

Is Thunderbird also capable of registering on Eurostack, or not without a complex restructure? That would also be a great win.

We at Natural Capital AI (www.naturalcapitalai.com, open source github set for release next month) would love to also help with an energy management MCP for the calendar function - the commercial ones are.. mad.

Love and go Thunderbird.

[hujenx]

Bring it on!

[esmm]

my reverse / two way sync magically started working about a day after I posted the above, albeit with manual sync / update commands needed - I'll take it - the Provider provides! Thank you Mozilla! Energy calendar MCP coming from NCAI!

[Nutta]

Absolutely! Calendar is one of the features of the Thunderbird desktop app that made it worthwhile swapping away from Outlook. An Android capability would be awesome.

[booma]

This would be a great addition. I use Business Calendar at the moment that has to sync with google cal as the intermediary from the desktop TB Calendar (Lightning!). Would much prefer a direct sync link.

However, envisage a potential issue: unlike FF which has a central account, TB email has accounts all over (which would make a central account for TB difficult - yes, i know, the topic here is for the Calendar) but i reckon so does the Calendar,. But if a direct sync could be set that would be useful and so skip the google intermediary. 

By this I mean that emails are replicated onto the desktop, even if saved for offline access, so syncing emails is tricky from a central acc aspect, but the calendar would have a live presence on the desktop

I hope this makes sense - if not, call me 🙂