crx3-webpack-plugin

A Webpack plugin to bundle chrome extensions for CRX3. The api is essentially identical to crx-webpack-plugin, and you can simply swap the two and go.

Inspired or enabled by the following projects:

crx-webpack-plugin

crx3

API

add the plugin

yarn add -D crx3-webpack-plugin

require it:

const crx3 = require('crx3-webpack-plugin');

configure the plugin:

// webpack.config.js

module.exports = {
  entry: //...,
  output: //...,
  plugins: [
    new crx3({
      updateUrl: 'url-to-update.xml',
      updateFilename: 'update.xml',
      keyFile: './build.pem',
      contentPath: './build',
      outputPath: './dist',
      name: 'my-extension.crx',
      zip: true,
      browserVersion: '64.0.3242'
   })
  ]
}

Configuration Settings:

Option	Required	Type	Default	About
contentPath	yes	string	none	location of build files. should be the webpack output folder to consume your bundle(s).
outputPath	yes	string	none	where to export the built extension.
keyFile	no	string	generates build.pem	a private key required to update the extension.
name	no	string	'crx'	the name of the built extension
updateUrl	no	string	none	where to find updates.xml
updateFilename	no	string	name	filename for updates.xml
zip	no	boolean	false	provides a zip of the build files along with the CRX.
browserVersion	no	string	none	specify a minimum browser version for the app.

Note: your build process should copy your manifest.json to outputPath before the plugin runs, or it will fail.

Important Note: CRX_REQUIRED_PROOF_MISSING

See crx3 for further details. Essentially, due to tightening regulations regarding the sources of chrome extensions, most users will be unable to install extensions built with this plugin, and it will be difficult to update them. This plugin therefore is probably not suitable for public Chrome Extensions. Your best bet is probably to bundle your application via Webpack and build and distribute manually through the web store. This plugin is useful for managing enterprise plugins however, provided that you're able to enforce a managed policy.