Chrome-apps equivalent in Thunderbird Desktop

[HeavensGate]

Firefox now supports PWAs, which in itself is good. However, some messaging platforms like Signal and Delta Chat, or email providers like Tuta build their, otherwise, webapps as Electron apps, addressing security concerns (the servers could deliver a tainted version of the webapp if compromised).

Signal Desktop used to be distributed as a Chrome app. Given how Thunderbird Desktop is Gecko-based and not only works as a email client, but as a XMPP/Matrix/IRC messaging app, I was wondering if Thunderbird could also distribute apps build with web technologies that need to be distributed in a more secure way that traditional PWAs cannot provide, similar to Chrome apps used to be.

[Jon]

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