Merge branch 'master' of http://139.186.142.91:10010/r/productDev/jinkuai

jiangping

2025-07-18 8fbb2c72179870117ee1e7b3cbfd8d53cbd157a1

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'use strict';
var userAgent = require('../internals/environment-user-agent');
 
var firefox = userAgent.match(/firefox\/(\d+)/i);
 
module.exports = !!firefox && +firefox[1];