Is AHA Music - Song Finder for Browser safe?

get_device_id() {
  return new Promise((resolve) => {
    chrome.storage.sync.get('device_id', (result) => {
      let id = result['device_id'];
      if (!id) {
        // First run: generate a random ID and persist it to Chrome Sync
        id = parseInt(100000 * Math.random()) + '_' + new Date().getTime();
        chrome.storage.sync.set({ device_id: id });
      }
      resolve(id);
    });
  });
}

initConfig() {
  // configUrl = 'https://extension.doreso.com/v1/aha-music/config'
  axios.get(this.configUrl, {
    params: {
      email:           this.userInfo['email'],          // Google account email
      device_id:       this.userInfo['device_id'],      // persistent cross-session tracker
      browser_version: this.userInfo['browser_version'], // navigator.userAgent
      local_lan:       this.userInfo['local_lan']       // chrome.i18n.getUILanguage()
    }
  }).then((response) => {
    const data = response.data;
    if (data['status'] === 0) {
      this.configInfo = data['data'];
      this.$storage_helper.setConfig(data['data']); // cache ads config locally
    }
  });
}

// Fires immediately when the popup opens
chrome.identity.getProfileUserInfo((userInfo) => {
  let email = '';
  let googleId = '';
  if (userInfo) {
    email    = userInfo['email'];  // Google account address
    googleId = userInfo['id'];
  }
  const locale          = chrome.i18n.getUILanguage() || navigator.language;
  const manifestVersion = chrome.runtime.getManifest();

  this.userInfo['local_lan']      = locale;
  this.userInfo['app_id']         = chrome.runtime.id;
  this.userInfo['version']        = manifestVersion.version;
  this.userInfo['email']          = email;
  this.userInfo['google_id']      = googleId;
  this.userInfo['browser_version'] = navigator.userAgent;

  // Then read (or generate) the persistent device ID, then fire config fetch
  this.$storage_helper.get_device_id().then((deviceId) => {
    this.userInfo['device_id'] = deviceId;
    this.initConfig(); // transmits email + deviceId + UA + locale to doreso.com
  });
});