Ubuntu 17.10 (xorg), gnome 3.26.2, Firefox 58.0 (64 bit). I have installed gnome-shell-extensions, chrome-gnome-shell, and the browser add ons for both Google Chrome and for Firefox. In Firefox the only add on/extension I have installed is gnome-shell-integration.
The integration with https://extensions.gnome.org works just fine with Google Chrome. However, with Firefox, I keep getting this error message: "Although GNOME Shell integration extension is running, native host connector is not detected. Refer documentation for instructions about installing connector."
What must I do to make this work with Firefox?