It appears that the official chrome webstore extension by Rob W is outdated.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

rimraf.sync(dir);
  const COMPONENTS_IMAGES = [
    "web/images/annotation-*.svg",
    "web/images/loading-icon.gif",
    "web/images/shadow.png",
  ];
  return merge([
    createComponentsBundle(defines).pipe(gulp.dest(dir)),
    gulp.src(COMPONENTS_IMAGES).pipe(gulp.dest(dir + "images")),
    preprocessCSS("web/pdf_viewer.css", defines)
      .pipe(
        postcss([
          postcssLogical({ preserve: true }),
          postcssDirPseudoClass(),
          autoprefixer(AUTOPREFIXER_CONFIG),
        ])
      )
      .pipe(gulp.dest(dir)),
  ]);