Theme Migration for Thunderbird 68

Andrei Hajdukewycz sancus at
Sat Jul 20 16:01:43 UTC 2019

On 2019-07-20 2:25 a.m., Onno Ekker wrote:
> I have a question about this, which holds for all extensions having a 
> manifest.json.
> When you look at the documentation on MDN, you see that the key 
> applications is replaced by browser_specific_settings:
> What is the preferred way to specify the id for Thunderbird? The old 
> applications key that is not documented on MDN anymore, or the new 
> browser_specific_settings, which looks weird since Thunderbird is not 
> a browser…
ATN is not compatible with 'browser_specific_settings' since that was 
added in Nov 2018 and we haven't updated that far yet. It should 
eventually support it. So the answer is: use 'applications' as all our 
documentation specifies, otherwise your add-on won't pass validation.

As far as I understand, this difference is for compatibility with other 
browsers that use Web Extensions(the 'applications' key is Gecko-only), 
and I haven't been able to find any plans to deprecate it, so this 
shouldn't be an issue going forward.

CCed Geoff just in case he has a different opinion or knows more...

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