Thunderbird 68

[marbx]

https://wiki.mozilla.org/Thunderbird/Add-ons_Guide_57

[marbx]

https://developer.thunderbird.net/

Updating Legacy Extensions for Thunderbird 68

Updating Legacy Extensions for Thunderbird 78

WHAT THEN IS NON LEGACY?

[marbx]

https://thunderbird-webextensions.readthedocs.io/en/68/

Thunderbird WebExtension APIs

[marbx]

I use function converter.writeString(contents)

to write to file from the address book.

in

https://github.com/markuskramerIgitt/MozillaThunderbirdAddon/blob/c95b14bc696a9420f0c12f16ea7ca693ab47f14d/AddressLabel/addresslabel/chrome/content/MozillaThunderbird.js#L79

[marbx]

DAS LUSTIGE FORUM https://discourse.mozilla.org/c/add-ons