Current Debian Jessie, Gnome 3.14.1, Firefox 63.0.3 (from Mozilla), Firefox-esr 63.0.3 (native). Can't get connector to install. "python3-requests" dependency not satisfiable. "python3-requests" not in repos, either. (Got .deb file and used gdebi.) chrome-gnome-shell not in repos. gnome-shell is. Tweak tool installed. gnome-shell is in toolbar--useless--only gnome.org site usable. Which repo may prove valid, and where? A few others report this about current Debian, too.