This Extansion had the hsgr stuff replaced with the CCCHH stuff. The extension it's based on; https://github.com/hsgr/hsgr-status-webextension A browser extension that adds a browser icon to show if the Hackerspace of the CCCHH is open. Is that's the case a counter is added to it's browser icon.
If clicked an interface popup is displayed with the contents of hackerspace's main page.
The webextension polls CCC Hamburgs SpaceAPI every 15 minutes to check if it's open.
It's compatible with the GNU/Linux,MacOSX,Windows versions of these browsers