Add-ons
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Slute
Proton Calendar Toolbar Button 1.1
troch Lars Baum
Adds a Proton Calendar button to the toolbar. The button simply opens a new tab with the https://calendar.proton.me webpage.
Oer dizze add-on
This addon is required as there is no API or similar to integrate Proton Calendar into Thunderbird as of now (2022/09/30).
