It appears that the official chrome webstore extension by Rob W is outdated. It was last updated in 2019. 

"not dead",
];
const AUTOPREFIXER_CONFIG = {
  overrideBrowserslist: ENV_TARGETS,
};
const BABEL_TARGETS = ENV_TARGETS.join(", ");
const DEFINES = Object.freeze({
  PRODUCTION: true,
  SKIP_BABEL: true,
  TESTING: undefined,
  
  GENERIC: false,
  MOZCENTRAL: false,
  CHROME: false,
  MINIFIED: false,
  COMPONENTS: false,
  LIB: false,
  IMAGE_DECODERS: false,
});
function transform(charEncoding, transformFunction) {
  return through.obj(function (vinylFile, enc, done) {
    const transformedFile = vinylFile.clone();
    transformedFile.contents = Buffer.from(
      transformFunction(transformedFile.contents),
      charEncoding
    );
    done(null, transformedFile);
  });
}
function safeSpawnSync(command, parameters, options) {