It appears that the official chrome webstore extension by Rob W is outdated.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

IMAGE_DECODERS: true,
    });
    return createImageDecodersBundle(defines).pipe(
      gulp.dest(IMAGE_DECODERS_DIR)
    );
  })
);
gulp.task(
  "image_decoders-legacy",
  gulp.series(createBuildNumber, function createImageDecodersLegacy() {
    console.log();
    console.log("### Creating (legacy) image decoders");
    const defines = builder.merge(DEFINES, {
      GENERIC: true,
      IMAGE_DECODERS: true,
      SKIP_BABEL: false,
    });
    return createImageDecodersBundle(defines).pipe(
      gulp.dest(IMAGE_DECODERS_LEGACY_DIR)
    );
  })
);
function buildMinified(defines, dir) {
  rimraf.sync(dir);
  return merge([
    createMainBundle(defines).pipe(gulp.dest(dir + "build")),
    createWorkerBundle(defines).pipe(gulp.dest(dir + "build")),
    createSandboxBundle(defines).pipe(gulp.dest(dir + "build")),
    createWebBundle(defines, {
      defaultPreferencesDir: defines.SKIP_BABEL