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

Philipp Kewisch kewisch at
Sun Sep 2 22:57:52 UTC 2018

On 9/3/18 12:52 AM, Wayne Mery wrote:
> On 9/2/2018 6:34 PM, Jörg Knobloch wrote:
>> 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.
>> Jörg.
> "we're going to continue supporting some form of bootstrapped add-ons
> that are as powerful as current bootstrapped add-ons. For Firefox,
> that will probably mean WebExtensions with embedded experiment APIs."
> Are there bug reports for this?  ^
"WebExtensions with embedded experiment APIs" is what I describe at

This is already supported in Firefox for quite some time.


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