A way to get Chromium / Google Chrome Extension ID.
npm install chrome-extension-id --save
var ceid = require('chrome-extension-id');
var parseCRX = require('crx-parser'); // see https://github.com/shyiko/node-crx-parser
fs.readFile('/tmp/mfabfdnimhipcapcioneheloaehhoggk.crx', function (err, buff) {
parseCRX(buff, function (err, data) {
var id = ceid(data.header.publicKey);
...
});
});