Data is synced from the Chrome Web Store. View the official store page for the most current information.
You MUST install native connector for this extension to work.
For Arch Linux, Debian, Fedora, Gentoo and Ubuntu you can install package named "chrome-gnome-shell".
You also can install connector manually. See https://wiki.gnome.org/Projects/GnomeShellIntegrationForChrome/Installation for install instructions.