new addons: xul, bootstrapped, webextensions, what to use

Jörg Knobloch jorgk at
Sun Sep 2 22:34:31 UTC 2018

On 03/09/2018 00:27, Philipp Kewisch wrote:
> If you would like an intermediate path, you could aim for a bootstrapped
> add-on. Note however you will need to rewrite to a WebExtension at some
> point before Thunderbird 68. Upgrading from a bootstrapped add-on to a
> WebExtension could be less effort than doing so from a XUL add-on, but
> my recommendation would still be to write it as a WebExtension Experiment.

Well, M-C actually "promised" a way forward for bootstrapped add-ons, see:

How exactly that's going to look like, if at all, we don't know yet.


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