Is Email Finder by Snov.io safe?

// Bearer token hardcoded verbatim in extension source (line 1 of twitterParserApi.js)
const TWITTER_AUTH_HEADER =
  'Bearer AAAAAAAAAAAAAAAAAAAAANRILgAAAAAAnNwIzUejRCOuH5E6I8xnZz4puTs%3D' +
  '1Zv7ttfk8LF81IUq16cHjhLTvJu4FA33AGWWjCpTnA';

// screenName — the @handle to look up
// csrfToken  — the user's ct0 cookie value, passed in from twitterSearch.js
async function getTwitterData(screenName, csrfToken, retryCount = 0) {
  let result = {};
  await $.get({
    url:
      'https://api.twitter.com/graphql/P8ph10GzBbdMqWZxulqCfA/UserByScreenName' +
      '?variables=%7B%22screen_name%22%3A%22' + screenName +
      '%22%2C%22withHighlightedLabel%22%3Afalse%7D',
    beforeSend: xhr => {
      // Uses the hardcoded bearer, not an OAuth token registered to Snov.io
      xhr.setRequestHeader('authorization', TWITTER_AUTH_HEADER);
      // Uses the user's own active Twitter session CSRF token
      xhr.setRequestHeader('x-csrf-token', csrfToken);
    }
  })
  .done(data => {
    if (!Object.keys(data.data).length ||
        data.data.user === undefined ||
        data.data.user.legacy === undefined) {
      return {};
    }
    result = data.data.user;
  })
  .fail(() => {
    showNotLoginTwitter();
  });
  return result;
}