let ReFaviconsWebpackPlugin = require('refavicons-webpack-plugin')

...

plugins: [
  new ReFaviconsWebpackPlugin('my-logo.png')
]

plugins: [
  new ReFaviconsWebpackPlugin({
    // Your source logo
    logo: 'my-logo.png',
    // The prefix for all image files (might be a folder or a name)
    prefix: 'icons-[hash]/',
    // Emit all stats of the generated icons
    emitStats: false,
    // The name of the json containing all favicon information
    statsFilename: 'iconstats-[hash].json',
    // Generate a cache file with control hashes and
    // don't rebuild the favicons until those hashes change
    persistentCache: true,
    // Inject the html into the html-webpack-plugin
    inject: true,

    // And other configuration that is supported by favicons
    // (see https://github.com/haydenbleasel/favicons#usage)
    /*
      appName: null,
      appDescription: null,
      ...
      icons: {
          ...
      }

    */
  })
]