Use moz module from puppeteer

moz_module_pptr.js

const puppeteer = require("puppeteer");

(async () => {
  const browser = await puppeteer.launch({
    browser: 'firefox',
    headless: false,
    // Path to your local build of FF with moz:browserConsole module.
    executablePath: '/Users/juliandescottes/Development/mozilla/hg/mozilla-unified/objdir.noindex/dist/Nightly.app/Contents/MacOS/firefox'
  });

  const page = await browser.newPage();
  const res = await browser.connection.send(
    'moz:browserConsole.evaluate',
    {
      expression: "Services.appinfo.appBuildID"
    }
  );
  const appBuildID = res.result;
  console.log("Evaluated appBuildID", appBuildID);

  await browser.close();
})();