Merge remote-tracking branch 'origin/master'

jiangping

2025-07-19 1d3acbd2992cac0123911f0ffc13a71910ae484b

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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];