Merge remote-tracking branch 'origin/master'

linwenling

2023-04-25 72b22be0d887d6793b8955b5a40ab5bbc6d9e7c4

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