[jmiserez]

Zotero is/was a XUL application, and the whole application used to (also) be a Firefox plugin. So the similarities are not unexpected.

[retorquere]

Is, for now. The parts of FF that Zotero relied on are being phased out (listed on the Mozilla docs site as "Archive of obsolete content"), so a transition to Electron is planned, and as part of that transition plan, parts are already being rewritten from XUL into React/HTML.

[novok]

I was wondering how they implemented native UI with just javascript and nothing obvious in their package.json