Link to the Chromium gnome-shell-integration extension
When I visit extensions.gnome.org/local with Firefox, it offers me an addon to install (and then tells me I have to also install the system connector).
When I visit extensions.gnome.org/local with Chromium, it tells me that my system is not supported. But if I manually find and install the chrome extension from https://chrome.google.com/webstore/detail/gnome-shell-integration/gphhapmejobijbbhgpjhcjognlahblep (and install the system connector), then it starts working.
It would be nice if extensions.gnome.org would recognize Chromium as a supported browser and link to the extension page, like it does with Firefox.